# used for /metrics endpoint on LiteLLM Proxy #### What this does #### # On success, log events to Prometheus from __future__ import annotations import asyncio import math import os import sys from datetime import datetime, timedelta from typing import ( TYPE_CHECKING, Any, Awaitable, Callable, Dict, List, Literal, Optional, Sequence, Tuple, Union, cast, ) import litellm from litellm._logging import print_verbose, verbose_logger from litellm.exceptions import ( validate_rate_limit_category, validate_rate_limit_type, ) from litellm.integrations.custom_logger import CustomLogger from litellm.integrations.prometheus_helpers import ( PrometheusLabelFactoryContext, _get_cached_end_user_id_for_cost_tracking, ) from litellm.integrations.prometheus_helpers.bounded_prometheus_series_tracker import ( BoundedPrometheusSeriesTracker, ) from litellm.litellm_core_utils.core_helpers import ( get_litellm_metadata_from_kwargs, get_metadata_variable_name_from_kwargs, ) from litellm.proxy._types import ( LiteLLM_DeletedVerificationToken, LiteLLM_TeamTable, LiteLLM_UserTable, UserAPIKeyAuth, ) from litellm.repositories.organization_repository import OrganizationRepository from litellm.repositories.team_repository import TeamRepository from litellm.repositories.user_repository import UserRepository from litellm.types.guardrails import GuardrailEventHooks from litellm.types.integrations.prometheus import * from litellm.types.integrations.prometheus import ( _sanitize_prometheus_label_name, _sanitize_prometheus_label_value, ) from litellm.types.utils import ( StandardLoggingGuardrailInformation, StandardLoggingPayload, ) if TYPE_CHECKING: from apscheduler.schedulers.asyncio import AsyncIOScheduler else: AsyncIOScheduler = Any _DEFAULT_BUDGET_METRICS_PER_REQUEST_TIMEOUT = 5.0 def _get_budget_metrics_per_request_timeout() -> float: raw = os.getenv("PROMETHEUS_BUDGET_METRICS_PER_REQUEST_TIMEOUT") if raw is None: return _DEFAULT_BUDGET_METRICS_PER_REQUEST_TIMEOUT try: parsed = float(raw) except ValueError: parsed = None if parsed is None or not math.isfinite(parsed) or parsed <= 0: verbose_logger.debug( "[Non-Blocking] Prometheus: invalid PROMETHEUS_BUDGET_METRICS_PER_REQUEST_TIMEOUT=%r; using default %ss.", raw, _DEFAULT_BUDGET_METRICS_PER_REQUEST_TIMEOUT, ) return _DEFAULT_BUDGET_METRICS_PER_REQUEST_TIMEOUT return parsed class PrometheusLogger(CustomLogger): # Class variables or attributes _ADDITIVE_GUARDRAIL_MODES = frozenset((GuardrailEventHooks.pre_call.value, GuardrailEventHooks.post_call.value)) @staticmethod def get_instance() -> Optional["PrometheusLogger"]: """Find the PrometheusLogger instance from litellm.callbacks, if registered.""" import litellm for cb in litellm.callbacks: if isinstance(cb, PrometheusLogger): return cb return None def __init__( self, **kwargs, ): try: from prometheus_client import Counter, Gauge, Histogram # Always initialize label_filters, even for non-premium users self.label_filters = self._parse_prometheus_config() # Cache resolved label sets per metric. Several entries in # ``PrometheusMetricLabels.get_labels`` read module-level toggles # (e.g. ``litellm.prometheus_emit_stream_label``, # ``litellm.prometheus_emit_rate_limit_labels``) that can be # changed at runtime. Prometheus counters/gauges/histograms are # created with a *fixed* ``labelnames`` set; if a runtime call # to ``get_labels_for_metric`` returned a different set, the # subsequent ``counter.labels(**_labels)`` would raise a # ``ValueError`` from the prometheus client. Snapshotting at # logger init time pins the label set for the lifetime of the # logger so toggling these flags only takes effect after a # restart, keeping init-time and runtime label sets in sync. self._cached_metric_labels: Dict[str, List[str]] = {} _custom_buckets = litellm.prometheus_latency_buckets self.latency_buckets = tuple(_custom_buckets) if _custom_buckets is not None else LATENCY_BUCKETS self._bounded_prometheus_series_tracker = BoundedPrometheusSeriesTracker() # Create metric factory functions self._counter_factory = self._create_metric_factory(Counter) self._gauge_factory = self._create_metric_factory(Gauge) self._histogram_factory = self._create_metric_factory(Histogram) self.litellm_proxy_failed_requests_metric = self._counter_factory( name="litellm_proxy_failed_requests_metric", documentation="Total number of failed responses from proxy - the client did not get a success response from litellm proxy", labelnames=self.get_labels_for_metric("litellm_proxy_failed_requests_metric"), ) self.litellm_proxy_total_requests_metric = self._counter_factory( name="litellm_proxy_total_requests_metric", documentation="Total number of requests made to the proxy server - track number of client side requests", labelnames=self.get_labels_for_metric("litellm_proxy_total_requests_metric"), ) # request latency metrics self.litellm_request_total_latency_metric = self._histogram_factory( "litellm_request_total_latency_metric", "Total latency (seconds) for a request to LiteLLM", labelnames=self.get_labels_for_metric("litellm_request_total_latency_metric"), buckets=self.latency_buckets, ) self.litellm_llm_api_latency_metric = self._histogram_factory( "litellm_llm_api_latency_metric", "Total latency (seconds) for a models LLM API call", labelnames=self.get_labels_for_metric("litellm_llm_api_latency_metric"), buckets=self.latency_buckets, ) self.litellm_llm_api_time_to_first_token_metric = self._histogram_factory( "litellm_llm_api_time_to_first_token_metric", "Time to first token for a models LLM API call", # labelnames=[ # "model", # "hashed_api_key", # "api_key_alias", # "team", # "team_alias", # ], labelnames=self.get_labels_for_metric("litellm_llm_api_time_to_first_token_metric"), buckets=self.latency_buckets, ) # Counter for spend self.litellm_spend_metric = self._counter_factory( "litellm_spend_metric", "Total spend on LLM requests", labelnames=self.get_labels_for_metric("litellm_spend_metric"), ) # Counter for total_output_tokens self.litellm_tokens_metric = self._counter_factory( "litellm_total_tokens_metric", "Total number of input + output tokens from LLM requests", labelnames=self.get_labels_for_metric("litellm_total_tokens_metric"), ) self.litellm_input_tokens_metric = self._counter_factory( "litellm_input_tokens_metric", "Total number of input tokens from LLM requests", labelnames=self.get_labels_for_metric("litellm_input_tokens_metric"), ) self.litellm_output_tokens_metric = self._counter_factory( "litellm_output_tokens_metric", "Total number of output tokens from LLM requests", labelnames=self.get_labels_for_metric("litellm_output_tokens_metric"), ) # Token-type detail metrics. These break out cached, cache-creation, # audio and reasoning tokens that providers report inside # prompt_tokens_details / completion_tokens_details on the usage # object. They are sparse (only incremented when the provider # reports a non-zero value) and are additive to the existing # input/output token totals — no breaking change for existing # dashboards built on the totals. self.litellm_input_cached_tokens_metric = self._counter_factory( "litellm_input_cached_tokens_metric", "Provider-side cached input tokens (e.g. OpenAI prompt_tokens_details.cached_tokens, Anthropic cache_read_input_tokens)", labelnames=self.get_labels_for_metric("litellm_input_cached_tokens_metric"), ) self.litellm_input_cache_creation_tokens_metric = self._counter_factory( "litellm_input_cache_creation_tokens_metric", "Provider-side input tokens written to prompt cache (e.g. Anthropic cache_creation_input_tokens)", labelnames=self.get_labels_for_metric("litellm_input_cache_creation_tokens_metric"), ) self.litellm_input_audio_tokens_metric = self._counter_factory( "litellm_input_audio_tokens_metric", "Audio input tokens reported in prompt_tokens_details.audio_tokens", labelnames=self.get_labels_for_metric("litellm_input_audio_tokens_metric"), ) self.litellm_output_reasoning_tokens_metric = self._counter_factory( "litellm_output_reasoning_tokens_metric", "Reasoning tokens reported in completion_tokens_details.reasoning_tokens", labelnames=self.get_labels_for_metric("litellm_output_reasoning_tokens_metric"), ) self.litellm_output_audio_tokens_metric = self._counter_factory( "litellm_output_audio_tokens_metric", "Audio output tokens reported in completion_tokens_details.audio_tokens", labelnames=self.get_labels_for_metric("litellm_output_audio_tokens_metric"), ) self.litellm_video_duration_seconds_metric = self._counter_factory( "litellm_video_duration_seconds_metric", "Seconds of video generated, from usage.duration_seconds on video generation calls", labelnames=self.get_labels_for_metric("litellm_video_duration_seconds_metric"), ) self.litellm_images_generated_metric = self._counter_factory( "litellm_images_generated_metric", "Number of images generated, from the image generation response", labelnames=self.get_labels_for_metric("litellm_images_generated_metric"), ) # Remaining Budget for Team self.litellm_remaining_team_budget_metric = self._gauge_factory( "litellm_remaining_team_budget_metric", "Remaining budget for team", labelnames=self.get_labels_for_metric("litellm_remaining_team_budget_metric"), ) # Max Budget for Team self.litellm_team_max_budget_metric = self._gauge_factory( "litellm_team_max_budget_metric", "Maximum budget set for team", labelnames=self.get_labels_for_metric("litellm_team_max_budget_metric"), ) # Team Budget Reset At self.litellm_team_budget_remaining_hours_metric = self._gauge_factory( "litellm_team_budget_remaining_hours_metric", "Remaining days for team budget to be reset", labelnames=self.get_labels_for_metric("litellm_team_budget_remaining_hours_metric"), ) # Number of members in a team self.litellm_team_members_metric = self._gauge_factory( "litellm_team_members_metric", "Number of members in a team", labelnames=self.get_labels_for_metric("litellm_team_members_metric"), ) # Remaining Budget for Org self.litellm_remaining_org_budget_metric = self._gauge_factory( "litellm_remaining_org_budget_metric", "Remaining budget for org", labelnames=self.get_labels_for_metric("litellm_remaining_org_budget_metric"), ) # Max Budget for Org self.litellm_org_max_budget_metric = self._gauge_factory( "litellm_org_max_budget_metric", "Maximum budget set for org", labelnames=self.get_labels_for_metric("litellm_org_max_budget_metric"), ) # Org Budget Reset At self.litellm_org_budget_remaining_hours_metric = self._gauge_factory( "litellm_org_budget_remaining_hours_metric", "Remaining hours for org budget to be reset", labelnames=self.get_labels_for_metric("litellm_org_budget_remaining_hours_metric"), ) # Remaining Budget for API Key self.litellm_remaining_api_key_budget_metric = self._gauge_factory( "litellm_remaining_api_key_budget_metric", "Remaining budget for api key", labelnames=self.get_labels_for_metric("litellm_remaining_api_key_budget_metric"), ) # Max Budget for API Key self.litellm_api_key_max_budget_metric = self._gauge_factory( "litellm_api_key_max_budget_metric", "Maximum budget set for api key", labelnames=self.get_labels_for_metric("litellm_api_key_max_budget_metric"), ) self.litellm_api_key_budget_remaining_hours_metric = self._gauge_factory( "litellm_api_key_budget_remaining_hours_metric", "Remaining hours for api key budget to be reset", labelnames=self.get_labels_for_metric("litellm_api_key_budget_remaining_hours_metric"), ) # Remaining Budget for User self.litellm_remaining_user_budget_metric = self._gauge_factory( "litellm_remaining_user_budget_metric", "Remaining budget for user", labelnames=self.get_labels_for_metric("litellm_remaining_user_budget_metric"), ) # Max Budget for User self.litellm_user_max_budget_metric = self._gauge_factory( "litellm_user_max_budget_metric", "Maximum budget set for user", labelnames=self.get_labels_for_metric("litellm_user_max_budget_metric"), ) self.litellm_user_budget_remaining_hours_metric = self._gauge_factory( "litellm_user_budget_remaining_hours_metric", "Remaining hours for user budget to be reset", labelnames=self.get_labels_for_metric("litellm_user_budget_remaining_hours_metric"), ) ######################################## # LiteLLM Virtual API KEY metrics ######################################## # Remaining MODEL RPM limit for API Key self.litellm_remaining_api_key_requests_for_model = self._gauge_factory( "litellm_remaining_api_key_requests_for_model", "Remaining Requests API Key can make for model (model based rpm limit on key)", labelnames=self.get_labels_for_metric("litellm_remaining_api_key_requests_for_model"), ) # Remaining MODEL TPM limit for API Key self.litellm_remaining_api_key_tokens_for_model = self._gauge_factory( "litellm_remaining_api_key_tokens_for_model", "Remaining Tokens API Key can make for model (model based tpm limit on key)", labelnames=self.get_labels_for_metric("litellm_remaining_api_key_tokens_for_model"), ) ######################################## # LLM API Deployment Metrics / analytics ######################################## # Remaining Rate Limit for model self.litellm_remaining_requests_metric = self._gauge_factory( "litellm_remaining_requests_metric", "LLM Deployment Analytics - remaining requests for model, returned from LLM API Provider", labelnames=self.get_labels_for_metric("litellm_remaining_requests_metric"), ) self.litellm_remaining_tokens_metric = self._gauge_factory( "litellm_remaining_tokens_metric", "remaining tokens for model, returned from LLM API Provider", labelnames=self.get_labels_for_metric("litellm_remaining_tokens_metric"), ) self.litellm_overhead_latency_metric = self._histogram_factory( "litellm_overhead_latency_metric", "Latency overhead (milliseconds) added by LiteLLM processing", labelnames=self.get_labels_for_metric("litellm_overhead_latency_metric"), buckets=self.latency_buckets, ) self.litellm_overhead_with_guardrails_latency_metric = self._histogram_factory( "litellm_overhead_with_guardrails_latency_metric", "Total internal latency (seconds) added by LiteLLM, including " "pre/post-call guardrails (excludes the LLM API call)", labelnames=self.get_labels_for_metric("litellm_overhead_with_guardrails_latency_metric"), buckets=self.latency_buckets, ) # Request queue time metric self.litellm_request_queue_time_metric = self._histogram_factory( "litellm_request_queue_time_seconds", "Time spent in request queue before processing starts (seconds)", labelnames=self.get_labels_for_metric("litellm_request_queue_time_seconds"), buckets=self.latency_buckets, ) # Guardrail metrics self.litellm_guardrail_latency_metric = self._histogram_factory( "litellm_guardrail_latency_seconds", "Latency (seconds) for guardrail execution", labelnames=["guardrail_name", "status", "error_type", "hook_type"], buckets=self.latency_buckets, ) self.litellm_guardrail_errors_total = self._counter_factory( "litellm_guardrail_errors_total", "Total number of errors encountered during guardrail execution", labelnames=["guardrail_name", "error_type", "hook_type"], ) self.litellm_guardrail_requests_total = self._counter_factory( "litellm_guardrail_requests_total", "Total number of guardrail invocations", labelnames=["guardrail_name", "status", "hook_type"], ) # llm api provider budget metrics self.litellm_provider_remaining_budget_metric = self._gauge_factory( "litellm_provider_remaining_budget_metric", "Remaining budget for provider - used when you set provider budget limits", labelnames=["api_provider"], ) # Metric for deployment state self.litellm_deployment_state = self._gauge_factory( "litellm_deployment_state", "LLM Deployment Analytics - The state of the deployment: 0 = healthy, 1 = partial outage, 2 = complete outage", labelnames=self.get_labels_for_metric("litellm_deployment_state"), ) self.litellm_deployment_tpm_limit = self._gauge_factory( "litellm_deployment_tpm_limit", "Deployment TPM limit found in config", labelnames=self.get_labels_for_metric("litellm_deployment_tpm_limit"), ) self.litellm_deployment_rpm_limit = self._gauge_factory( "litellm_deployment_rpm_limit", "Deployment RPM limit found in config", labelnames=self.get_labels_for_metric("litellm_deployment_rpm_limit"), ) self.litellm_deployment_cooled_down = self._counter_factory( "litellm_deployment_cooled_down", "LLM Deployment Analytics - Number of times a deployment has been cooled down by LiteLLM load balancing logic. exception_status is the status of the exception that caused the deployment to be cooled down", # labelnames=_logged_llm_labels + [EXCEPTION_STATUS], labelnames=self.get_labels_for_metric("litellm_deployment_cooled_down"), ) self.litellm_deployment_success_responses = self._counter_factory( name="litellm_deployment_success_responses", documentation="LLM Deployment Analytics - Total number of successful LLM API calls via litellm", labelnames=self.get_labels_for_metric("litellm_deployment_success_responses"), ) self.litellm_deployment_failure_responses = self._counter_factory( name="litellm_deployment_failure_responses", documentation="LLM Deployment Analytics - Total number of failed LLM API calls for a specific LLM deploymeny. exception_status is the status of the exception from the llm api", labelnames=self.get_labels_for_metric("litellm_deployment_failure_responses"), ) self.litellm_deployment_total_requests = self._counter_factory( name="litellm_deployment_total_requests", documentation="LLM Deployment Analytics - Total number of LLM API calls via litellm - success + failure", labelnames=self.get_labels_for_metric("litellm_deployment_total_requests"), ) # Deployment Latency tracking self.litellm_deployment_latency_per_output_token = self._histogram_factory( name="litellm_deployment_latency_per_output_token", documentation="LLM Deployment Analytics - Latency per output token", labelnames=self.get_labels_for_metric("litellm_deployment_latency_per_output_token"), ) self.litellm_deployment_successful_fallbacks = self._counter_factory( "litellm_deployment_successful_fallbacks", "LLM Deployment Analytics - Number of successful fallback requests from primary model -> fallback model", self.get_labels_for_metric("litellm_deployment_successful_fallbacks"), ) self.litellm_deployment_failed_fallbacks = self._counter_factory( "litellm_deployment_failed_fallbacks", "LLM Deployment Analytics - Number of failed fallback requests from primary model -> fallback model", self.get_labels_for_metric("litellm_deployment_failed_fallbacks"), ) # Callback Logging Failure Metrics self.litellm_callback_logging_failures_metric = self._counter_factory( name="litellm_callback_logging_failures_metric", documentation="Total number of failures when emitting logs to callbacks (e.g. s3_v2, langfuse, etc)", labelnames=["callback_name"], ) self.litellm_llm_api_failed_requests_metric = self._counter_factory( name="litellm_llm_api_failed_requests_metric", documentation="deprecated - use litellm_proxy_failed_requests_metric", labelnames=self.get_labels_for_metric("litellm_llm_api_failed_requests_metric"), ) self.litellm_requests_metric = self._counter_factory( name="litellm_requests_metric", documentation="deprecated - use litellm_proxy_total_requests_metric. Total number of LLM calls to litellm - track total per API Key, team, user", labelnames=self.get_labels_for_metric("litellm_requests_metric"), ) # Cache metrics self.litellm_cache_hits_metric = self._counter_factory( name="litellm_cache_hits_metric", documentation="Total number of LiteLLM cache hits", labelnames=self.get_labels_for_metric("litellm_cache_hits_metric"), ) self.litellm_cache_misses_metric = self._counter_factory( name="litellm_cache_misses_metric", documentation="Total number of LiteLLM cache misses", labelnames=self.get_labels_for_metric("litellm_cache_misses_metric"), ) self.litellm_cached_tokens_metric = self._counter_factory( name="litellm_cached_tokens_metric", documentation="Total tokens served from LiteLLM cache", labelnames=self.get_labels_for_metric("litellm_cached_tokens_metric"), ) # Provider prompt-caching metrics self.litellm_provider_cache_read_input_tokens_metric = self._counter_factory( name="litellm_provider_cache_read_input_tokens_metric", documentation="Total prompt/input tokens read from provider prompt cache (e.g. OpenAI/Anthropic/Gemini/Bedrock)", labelnames=self.get_labels_for_metric("litellm_provider_cache_read_input_tokens_metric"), ) self.litellm_provider_cache_creation_input_tokens_metric = self._counter_factory( name="litellm_provider_cache_creation_input_tokens_metric", documentation="Total prompt/input tokens written to provider prompt cache (e.g. Anthropic/Bedrock)", labelnames=self.get_labels_for_metric("litellm_provider_cache_creation_input_tokens_metric"), ) # User and Team count metrics self.litellm_total_users_metric = self._gauge_factory( "litellm_total_users", "Total number of users in LiteLLM", labelnames=[], ) self.litellm_active_users_metric = self._gauge_factory( "litellm_active_users", "Number of billable users in LiteLLM (excludes SCIM-deactivated users)", labelnames=[], ) self.litellm_teams_count_metric = self._gauge_factory( "litellm_teams_count", "Total number of teams in LiteLLM", labelnames=[], ) ######################################## # Managed Batch Metrics ######################################## self.litellm_managed_batch_created_total = self._counter_factory( name="litellm_managed_batch_created_total", documentation="Total number of managed batches created", labelnames=[ "model", "api_provider", "user", "user_email", "api_key_alias", ], ) self.litellm_managed_file_size_bytes = self._gauge_factory( "litellm_managed_file_size_bytes", "Size of the most recent managed batch file in bytes (last-seen value per label combination)", labelnames=["purpose", "file_type", "model", "api_provider", "user"], ) self.litellm_managed_batch_duration_seconds = self._histogram_factory( "litellm_managed_batch_duration_seconds", "Duration of completed managed batches in seconds (completed_at - created_at)", labelnames=["model", "api_provider"], buckets=BATCH_DURATION_BUCKETS, ) self.litellm_managed_file_created_total = self._counter_factory( name="litellm_managed_file_created_total", documentation="Total number of managed files created", labelnames=[ "model", "api_provider", "user", "user_email", "api_key_alias", ], ) self.litellm_managed_file_deleted_total = self._counter_factory( name="litellm_managed_file_deleted_total", documentation="Total number of managed file deletions (success or blocked)", labelnames=["result"], ) self.litellm_check_batch_cost_jobs_polled = self._gauge_factory( "litellm_check_batch_cost_jobs_polled", "Number of unprocessed batches found by the last CheckBatchCost poll", labelnames=[], ) self.litellm_check_batch_cost_jobs_processed_total = self._counter_factory( name="litellm_check_batch_cost_jobs_processed_total", documentation="Total number of batches successfully cost-tracked by CheckBatchCost", labelnames=["model", "api_provider"], ) self.litellm_check_batch_cost_errors_total = self._counter_factory( name="litellm_check_batch_cost_errors_total", documentation="Total number of errors in CheckBatchCost by error type", labelnames=["error_type"], ) self.litellm_check_batch_cost_last_run_timestamp = self._gauge_factory( "litellm_check_batch_cost_last_run_timestamp", "Unix timestamp of the last CheckBatchCost job run", labelnames=[], ) ######################################## # MCP Tool Call Metrics ######################################## self.litellm_mcp_tool_calls_total = self._counter_factory( name="litellm_mcp_tool_calls_total", documentation="Total MCP tool calls, segmented by tool and server name", labelnames=self.get_labels_for_metric("litellm_mcp_tool_calls_total"), ) self.litellm_mcp_tool_call_spend_metric = self._counter_factory( name="litellm_mcp_tool_call_spend_metric", documentation="Total spend on MCP tool calls, segmented by tool and server name", labelnames=self.get_labels_for_metric("litellm_mcp_tool_call_spend_metric"), ) except Exception as e: print_verbose(f"Got exception on init prometheus client {str(e)}") raise e def _parse_prometheus_config(self) -> Dict[str, List[str]]: """Parse prometheus metrics configuration for label filtering and enabled metrics""" import litellm from litellm.types.integrations.prometheus import PrometheusMetricsConfig config = litellm.prometheus_metrics_config # If no config is provided, return empty dict (no filtering) if not config: return {} verbose_logger.debug(f"prometheus config: {config}") # Parse and validate all configuration groups parsed_configs = [] self.enabled_metrics = set() for group_config in config: if isinstance(group_config, dict): parsed_config = PrometheusMetricsConfig(**group_config) else: parsed_config = group_config parsed_configs.append(parsed_config) self.enabled_metrics.update(parsed_config.metrics) # Validate all configurations validation_results = self._validate_all_configurations(parsed_configs) if validation_results.has_errors: self._pretty_print_validation_errors(validation_results) error_message = "Configuration validation failed:\n" + "\n".join(validation_results.all_error_messages) raise ValueError(error_message) # Build label filters from valid configurations label_filters = self._build_label_filters(parsed_configs) # Pretty print the processed configuration self._pretty_print_prometheus_config(label_filters) return label_filters def _validate_all_configurations(self, parsed_configs: List) -> ValidationResults: """Validate all metric configurations and return collected errors""" metric_errors = [] label_errors = [] for config in parsed_configs: for metric_name in config.metrics: # Validate metric name metric_error = self._validate_single_metric_name(metric_name) if metric_error: metric_errors.append(metric_error) continue # Skip label validation if metric name is invalid # Validate labels if provided if config.include_labels: label_error = self._validate_single_metric_labels(metric_name, config.include_labels) if label_error: label_errors.append(label_error) return ValidationResults(metric_errors=metric_errors, label_errors=label_errors) def _validate_single_metric_name(self, metric_name: str) -> Optional[MetricValidationError]: """Validate a single metric name""" from typing import get_args if metric_name not in set(get_args(DEFINED_PROMETHEUS_METRICS)): return MetricValidationError( metric_name=metric_name, valid_metrics=get_args(DEFINED_PROMETHEUS_METRICS), ) return None def _validate_single_metric_labels(self, metric_name: str, labels: List[str]) -> Optional[LabelValidationError]: """Validate labels for a single metric""" from typing import cast # Get valid labels for this metric from PrometheusMetricLabels valid_labels = PrometheusMetricLabels.get_labels(cast(DEFINED_PROMETHEUS_METRICS, metric_name)) # Find invalid labels invalid_labels = [label for label in labels if label not in valid_labels] if invalid_labels: return LabelValidationError( metric_name=metric_name, invalid_labels=invalid_labels, valid_labels=valid_labels, ) return None def _build_label_filters(self, parsed_configs: List) -> Dict[str, List[str]]: """Build label filters from validated configurations""" label_filters = {} for config in parsed_configs: for metric_name in config.metrics: if config.include_labels: # Only add if metric name is valid (validation already passed) if self._validate_single_metric_name(metric_name) is None: label_filters[metric_name] = config.include_labels return label_filters def _validate_configured_metric_labels(self, metric_name: str, labels: List[str]): """ Ensure that all the configured labels are valid for the metric Raises ValueError if the metric labels are invalid and pretty prints the error """ label_error = self._validate_single_metric_labels(metric_name, labels) if label_error: self._pretty_print_invalid_labels_error( metric_name=label_error.metric_name, invalid_labels=label_error.invalid_labels, valid_labels=label_error.valid_labels, ) raise ValueError(label_error.message) return True ######################################################### # Pretty print functions ######################################################### def _pretty_print_validation_errors(self, validation_results: ValidationResults) -> None: """Pretty print all validation errors using rich""" try: from rich.console import Console from rich.panel import Panel from rich.table import Table from rich.text import Text console = Console() # Create error panel title title = Text("🚨🚨 Configuration Validation Errors", style="bold red") # Print main error panel console.print("\n") console.print(Panel(title, border_style="red")) # Show invalid metric names if any if validation_results.metric_errors: invalid_metrics = [e.metric_name for e in validation_results.metric_errors] valid_metrics = validation_results.metric_errors[0].valid_metrics # All should have same valid metrics metrics_error_text = Text( f"Invalid Metric Names: {', '.join(invalid_metrics)}", style="bold red", ) console.print(Panel(metrics_error_text, border_style="red")) metrics_table = Table( title="📊 Valid Metric Names", show_header=True, header_style="bold green", title_justify="left", border_style="green", ) metrics_table.add_column("Available Metrics", style="cyan", no_wrap=True) for metric in sorted(valid_metrics): metrics_table.add_row(metric) console.print(metrics_table) # Show invalid labels if any if validation_results.label_errors: for error in validation_results.label_errors: labels_error_text = Text( f"Invalid Labels for '{error.metric_name}': {', '.join(error.invalid_labels)}", style="bold red", ) console.print(Panel(labels_error_text, border_style="red")) labels_table = Table( title=f"🏷️ Valid Labels for '{error.metric_name}'", show_header=True, header_style="bold green", title_justify="left", border_style="green", ) labels_table.add_column("Valid Labels", style="cyan", no_wrap=True) for label in sorted(error.valid_labels): labels_table.add_row(label) console.print(labels_table) console.print("\n") except ImportError: # Fallback to simple logging if rich is not available for metric_error in validation_results.metric_errors: verbose_logger.error(metric_error.message) for label_error in validation_results.label_errors: verbose_logger.error(label_error.message) def _pretty_print_invalid_labels_error( self, metric_name: str, invalid_labels: List[str], valid_labels: List[str] ) -> None: """Pretty print error message for invalid labels using rich""" try: from rich.console import Console from rich.panel import Panel from rich.table import Table from rich.text import Text console = Console() # Create error panel title title = Text( f"🚨🚨 Invalid Labels for Metric: '{metric_name}'\nInvalid labels: {', '.join(invalid_labels)}\nPlease specify only valid labels below", style="bold red", ) # Create valid labels table labels_table = Table( title="🏷️ Valid Labels for this Metric", show_header=True, header_style="bold green", title_justify="left", border_style="green", ) labels_table.add_column("Valid Labels", style="cyan", no_wrap=True) for label in sorted(valid_labels): labels_table.add_row(label) # Print everything in a nice panel console.print("\n") console.print(Panel(title, border_style="red")) console.print(labels_table) console.print("\n") except ImportError: # Fallback to simple logging if rich is not available verbose_logger.error( f"Invalid labels for metric '{metric_name}': {invalid_labels}. Valid labels: {sorted(valid_labels)}" ) def _pretty_print_invalid_metric_error(self, invalid_metric_name: str, valid_metrics: tuple) -> None: """Pretty print error message for invalid metric name using rich""" try: from rich.console import Console from rich.panel import Panel from rich.table import Table from rich.text import Text console = Console() # Create error panel title title = Text( f"🚨🚨 Invalid Metric Name: '{invalid_metric_name}'\nPlease specify one of the allowed metrics below", style="bold red", ) # Create valid metrics table metrics_table = Table( title="📊 Valid Metric Names", show_header=True, header_style="bold green", title_justify="left", border_style="green", ) metrics_table.add_column("Available Metrics", style="cyan", no_wrap=True) for metric in sorted(valid_metrics): metrics_table.add_row(metric) # Print everything in a nice panel console.print("\n") console.print(Panel(title, border_style="red")) console.print(metrics_table) console.print("\n") except ImportError: # Fallback to simple logging if rich is not available verbose_logger.error(f"Invalid metric name: {invalid_metric_name}. Valid metrics: {sorted(valid_metrics)}") ######################################################### # End of pretty print functions ######################################################### def _valid_metric_name(self, metric_name: str): """ Raises ValueError if the metric name is invalid and pretty prints the error """ error = self._validate_single_metric_name(metric_name) if error: self._pretty_print_invalid_metric_error( invalid_metric_name=error.metric_name, valid_metrics=error.valid_metrics ) raise ValueError(error.message) def _pretty_print_prometheus_config(self, label_filters: Dict[str, List[str]]) -> None: """Pretty print the processed prometheus configuration using rich""" try: from rich.console import Console from rich.panel import Panel from rich.table import Table from rich.text import Text console = Console() # Create main panel title title = Text("Prometheus Configuration Processed", style="bold blue") # Create enabled metrics table metrics_table = Table( title="📊 Enabled Metrics", show_header=True, header_style="bold magenta", title_justify="left", ) metrics_table.add_column("Metric Name", style="cyan", no_wrap=True) if hasattr(self, "enabled_metrics") and self.enabled_metrics: for metric in sorted(self.enabled_metrics): metrics_table.add_row(metric) else: metrics_table.add_row("[yellow]All metrics enabled (no filter applied)[/yellow]") # Create label filters table labels_table = Table( title="🏷️ Label Filters", show_header=True, header_style="bold green", title_justify="left", ) labels_table.add_column("Metric Name", style="cyan", no_wrap=True) labels_table.add_column("Allowed Labels", style="yellow") if label_filters: for metric_name, labels in sorted(label_filters.items()): labels_str = ", ".join(labels) if labels else "[dim]No labels specified[/dim]" labels_table.add_row(metric_name, labels_str) else: labels_table.add_row( "[yellow]No label filtering applied[/yellow]", "[dim]All default labels will be used[/dim]", ) # Print everything in a nice panel console.print("\n") console.print(Panel(title, border_style="blue")) console.print(metrics_table) console.print(labels_table) console.print("\n") except ImportError: # Fallback to simple logging if rich is not available verbose_logger.info( f"Enabled metrics: {sorted(self.enabled_metrics) if hasattr(self, 'enabled_metrics') else 'All metrics'}" ) verbose_logger.info(f"Label filters: {label_filters}") def _is_metric_enabled(self, metric_name: str) -> bool: """Check if a metric is enabled based on configuration""" # If no specific configuration is provided, enable all metrics (default behavior) if not hasattr(self, "enabled_metrics"): return True # If enabled_metrics is empty, enable all metrics if not self.enabled_metrics: return True return metric_name in self.enabled_metrics def _create_metric_factory(self, metric_class): """Create a factory function that returns either a real metric or a no-op metric""" def factory(*args, **kwargs): # Extract metric name from the first argument or 'name' keyword argument metric_name = args[0] if args else kwargs.get("name", "") if self._is_metric_enabled(metric_name): return metric_class(*args, **kwargs) else: return NoOpMetric() return factory def get_labels_for_metric(self, metric_name: DEFINED_PROMETHEUS_METRICS) -> List[str]: """ Get the labels for a metric, filtered if configured. The result is cached on the instance so the label set used to construct each Prometheus metric at ``__init__`` time stays in lock step with the label set passed to ``counter.labels(...)`` at runtime, even if the underlying module-level toggles consulted by :meth:`PrometheusMetricLabels.get_labels` (e.g. ``litellm.prometheus_emit_rate_limit_labels``, ``litellm.prometheus_emit_stream_label``) are flipped after the logger has been created. """ cached = self._cached_metric_labels.get(metric_name) if cached is not None: return cached # Get default labels for this metric from PrometheusMetricLabels default_labels = PrometheusMetricLabels.get_labels(metric_name) # If no label filtering is configured for this metric, use default labels if metric_name not in self.label_filters: self._cached_metric_labels[metric_name] = default_labels return default_labels # Get configured labels for this metric configured_labels = self.label_filters[metric_name] # Return intersection of configured and default labels to ensure we only use valid labels filtered_labels = [label for label in default_labels if label in configured_labels] self._cached_metric_labels[metric_name] = filtered_labels return filtered_labels @staticmethod def _guardrail_is_additive(info: StandardLoggingGuardrailInformation) -> bool: mode = info.get("guardrail_mode") modes = mode if isinstance(mode, list) else [mode] mode_values = frozenset( m.value if isinstance(m, GuardrailEventHooks) else m for m in modes if isinstance(m, str) ) return bool(mode_values) and mode_values <= PrometheusLogger._ADDITIVE_GUARDRAIL_MODES @staticmethod def _get_guardrail_overhead_seconds( standard_logging_payload: StandardLoggingPayload, ) -> float: """Seconds of additive guardrail time (pre/post-call only) on the payload. during_call guardrails run concurrently with the LLM call, so their wall-clock overlaps the provider call and is not additive overhead; logging_only and MCP modes never block the user-facing response. A guardrail counts only when every mode it carries is pre/post-call, so a mixed list such as ["pre_call", "during_call"] is excluded. guardrail_information is typed as a list, but some guardrails assign a single dict directly, so normalize that shape to a one-item list. """ guardrail_information = standard_logging_payload.get("guardrail_information") entries: list[StandardLoggingGuardrailInformation] = ( [cast("StandardLoggingGuardrailInformation", guardrail_information)] if isinstance(guardrail_information, dict) else guardrail_information or [] ) return sum( (float(info.get("duration") or 0.0) for info in entries if PrometheusLogger._guardrail_is_additive(info)), 0.0, ) def _set_overhead_with_guardrails_metric( self, standard_logging_payload: StandardLoggingPayload, enum_values: UserAPIKeyLabelValues, label_context: Optional[PrometheusLabelFactoryContext] = None, ) -> None: """Record litellm_overhead_with_guardrails_latency_metric (seconds): SDK overhead + pre/post-call guardrail time. Recorded outside the SDK-overhead gate so guardrail-only overhead is still captured when litellm_overhead_time_ms is 0 or absent. """ litellm_overhead_time_ms = standard_logging_payload["hidden_params"].get("litellm_overhead_time_ms") guardrail_overhead_seconds = self._get_guardrail_overhead_seconds(standard_logging_payload) if litellm_overhead_time_ms is None and guardrail_overhead_seconds <= 0: return labels = prometheus_label_factory( supported_enum_labels=self.get_labels_for_metric( metric_name="litellm_overhead_with_guardrails_latency_metric" ), enum_values=enum_values, label_context=label_context, ) self.litellm_overhead_with_guardrails_latency_metric.labels(**labels).observe( ((litellm_overhead_time_ms or 0.0) / 1000) + guardrail_overhead_seconds ) def _track_end_user_metric_series( self, metric: Any, metric_name: DEFINED_PROMETHEUS_METRICS, labels: Dict[str, Optional[str]], ) -> None: """ Cap the cardinality of metrics that include the ``end_user`` label. Called *after* ``metric.labels(...).inc()/observe()`` so the emission is recorded in prometheus-client's child map before any eviction runs. Series that get evicted before the next scrape lose updates accrued since the last scrape — this is inherent to any cardinality cap. """ labelnames = self.get_labels_for_metric(metric_name) if UserAPIKeyLabelNames.END_USER.value not in labelnames: return if labels.get(UserAPIKeyLabelNames.END_USER.value) is None: return max_series = litellm.prometheus_end_user_metrics_max_series_per_metric ttl_seconds = litellm.prometheus_end_user_metrics_ttl_seconds if max_series is None and ttl_seconds is None: return self._bounded_prometheus_series_tracker.track_series( metric=metric, metric_name=metric_name, label_values=tuple(labels.get(label) for label in labelnames), max_series=max_series, ttl_seconds=ttl_seconds, cleanup_interval_seconds=litellm.prometheus_end_user_metrics_cleanup_interval_seconds, ) def _inc_labeled_counter( self, counter: Any, metric_name: DEFINED_PROMETHEUS_METRICS, enum_values: UserAPIKeyLabelValues, label_context: Optional[PrometheusLabelFactoryContext] = None, amount: float = 1.0, ) -> None: _labels = prometheus_label_factory( supported_enum_labels=self.get_labels_for_metric(metric_name=metric_name), enum_values=enum_values, label_context=label_context, ) counter.labels(**_labels).inc(amount) self._track_end_user_metric_series(counter, metric_name, _labels) async def async_log_success_event(self, kwargs, response_obj, start_time, end_time): # Define prometheus client verbose_logger.debug( "prometheus Logging - Enters success logging function (kwargs keys: %s)", list(kwargs.keys()) if isinstance(kwargs, dict) else type(kwargs).__name__, ) # unpack kwargs standard_logging_payload: Optional[StandardLoggingPayload] = kwargs.get("standard_logging_object") if standard_logging_payload is None or not isinstance(standard_logging_payload, dict): raise ValueError(f"standard_logging_object is required, got={standard_logging_payload}") if self._should_skip_metrics_for_invalid_key(kwargs=kwargs, standard_logging_payload=standard_logging_payload): return model = kwargs.get("model", "") litellm_params = kwargs.get("litellm_params", {}) or {} _metadata = litellm_params.get("metadata") or {} get_end_user_id_for_cost_tracking = _get_cached_end_user_id_for_cost_tracking() end_user_id = get_end_user_id_for_cost_tracking(litellm_params, service_type="prometheus") user_id = standard_logging_payload["metadata"]["user_api_key_user_id"] user_api_key = standard_logging_payload["metadata"]["user_api_key_hash"] user_api_key_alias = standard_logging_payload["metadata"]["user_api_key_alias"] user_api_team = standard_logging_payload["metadata"]["user_api_key_team_id"] user_api_team_alias = standard_logging_payload["metadata"]["user_api_key_team_alias"] user_api_key_org_id = standard_logging_payload["metadata"].get("user_api_key_org_id") user_api_key_org_alias = standard_logging_payload["metadata"].get("user_api_key_org_alias") output_tokens = standard_logging_payload["completion_tokens"] tokens_used = standard_logging_payload["total_tokens"] response_cost = standard_logging_payload["response_cost"] combined_metadata = _get_combined_custom_metadata_from_standard_logging_payload( standard_logging_payload=standard_logging_payload ) if standard_logging_payload is not None and isinstance(standard_logging_payload, dict): _tags = standard_logging_payload["request_tags"] else: _tags = [] print_verbose( f"inside track_prometheus_metrics, model {model}, response_cost {response_cost}, tokens_used {tokens_used}, end_user_id {end_user_id}, user_api_key {user_api_key}" ) enum_values = UserAPIKeyLabelValues( end_user=end_user_id, hashed_api_key=user_api_key, api_key_alias=user_api_key_alias, requested_model=standard_logging_payload["model_group"], model_group=standard_logging_payload["model_group"], team=user_api_team, team_alias=user_api_team_alias, org_id=user_api_key_org_id, org_alias=user_api_key_org_alias, user=user_id, user_email=standard_logging_payload["metadata"]["user_api_key_user_email"], status_code="200", model=model, litellm_model_name=model, tags=_tags, model_id=standard_logging_payload["model_id"], api_base=standard_logging_payload["api_base"], api_provider=standard_logging_payload["custom_llm_provider"], exception_status=None, exception_class=None, custom_metadata_labels=get_custom_labels_from_metadata(metadata=combined_metadata), route=standard_logging_payload["metadata"].get("user_api_key_request_route"), client_ip=standard_logging_payload["metadata"].get("requester_ip_address"), user_agent=standard_logging_payload["metadata"].get("user_agent"), stream=(str(standard_logging_payload.get("stream")) if litellm.prometheus_emit_stream_label else None), ) if user_api_key is not None and isinstance(user_api_key, str) and user_api_key.startswith("sk-"): from litellm.proxy.utils import hash_token user_api_key = hash_token(user_api_key) label_context = PrometheusLabelFactoryContext(enum_values) # amortized per request. # increment total LLM requests and spend metric self._increment_top_level_request_and_spend_metrics( end_user_id=end_user_id, user_api_key=user_api_key, user_api_key_alias=user_api_key_alias, model=model, user_api_team=user_api_team, user_api_team_alias=user_api_team_alias, user_id=user_id, response_cost=response_cost, enum_values=enum_values, label_context=label_context, ) # input, output, total token metrics self._increment_token_metrics( # why type ignore below? # 1. We just checked if isinstance(standard_logging_payload, dict). Pyright complains. # 2. Pyright does not allow us to run isinstance(standard_logging_payload, StandardLoggingPayload) <- this would be ideal standard_logging_payload=standard_logging_payload, # type: ignore end_user_id=end_user_id, user_api_key=user_api_key, user_api_key_alias=user_api_key_alias, model=model, user_api_team=user_api_team, user_api_team_alias=user_api_team_alias, user_id=user_id, enum_values=enum_values, label_context=label_context, ) # remaining budget metrics await self._increment_remaining_budget_metrics( user_api_team=user_api_team, user_api_team_alias=user_api_team_alias, user_api_key=user_api_key, user_api_key_alias=user_api_key_alias, litellm_params=litellm_params, response_cost=response_cost, user_id=user_id, user_api_key_org_id=user_api_key_org_id, ) # set proxy virtual key rpm/tpm metrics self._set_virtual_key_rate_limit_metrics( user_api_key=user_api_key, user_api_key_alias=user_api_key_alias, kwargs=kwargs, metadata=_metadata, model_id=enum_values.model_id, ) # set latency metrics self._set_latency_metrics( kwargs=kwargs, model=model, user_api_key=user_api_key, user_api_key_alias=user_api_key_alias, user_api_team=user_api_team, user_api_team_alias=user_api_team_alias, # why type ignore below? # 1. We just checked if isinstance(standard_logging_payload, dict). Pyright complains. # 2. Pyright does not allow us to run isinstance(standard_logging_payload, StandardLoggingPayload) <- this would be ideal enum_values=enum_values, label_context=label_context, ) # set x-ratelimit headers self.set_llm_deployment_success_metrics( kwargs, start_time, end_time, enum_values, output_tokens, label_context=label_context, ) # Provider-agnostic fallback: providers like Bedrock and Vertex don't return # x-ratelimit-remaining-* headers, so the gauges above only fire for OpenAI / # Anthropic / Azure. When the proxy router has tpm/rpm configured for the # model_group, derive remaining from configured-limit minus current usage so # the same metric is populated for any provider. await self._async_set_router_remaining_metrics( standard_logging_payload=standard_logging_payload, # type: ignore enum_values=enum_values, label_context=label_context, ) # cache metrics self._increment_cache_metrics( standard_logging_payload=standard_logging_payload, # type: ignore enum_values=enum_values, label_context=label_context, ) self._increment_media_generation_metrics( standard_logging_payload=standard_logging_payload, enum_values=enum_values, label_context=label_context, ) # MCP tool call metrics self._increment_mcp_tool_call_metrics( standard_logging_payload=standard_logging_payload, enum_values=enum_values, response_cost=response_cost, ) # increment litellm_proxy_total_requests_metric for all successful requests # (both streaming and non-streaming) in this single location to prevent # double-counting that occurs when async_post_call_success_hook also increments PrometheusLogger._inc_labeled_counter( self, self.litellm_proxy_total_requests_metric, "litellm_proxy_total_requests_metric", enum_values, label_context=label_context, ) def _increment_token_metrics( self, standard_logging_payload: StandardLoggingPayload, end_user_id: Optional[str], user_api_key: Optional[str], user_api_key_alias: Optional[str], model: Optional[str], user_api_team: Optional[str], user_api_team_alias: Optional[str], user_id: Optional[str], enum_values: UserAPIKeyLabelValues, label_context: Optional[PrometheusLabelFactoryContext] = None, ): verbose_logger.debug("prometheus Logging - Enters token metrics function") # token metrics if standard_logging_payload is not None and isinstance(standard_logging_payload, dict): _tags = standard_logging_payload["request_tags"] PrometheusLogger._inc_labeled_counter( self, self.litellm_tokens_metric, "litellm_total_tokens_metric", enum_values, label_context=label_context, amount=float(standard_logging_payload["total_tokens"]), ) PrometheusLogger._inc_labeled_counter( self, self.litellm_input_tokens_metric, "litellm_input_tokens_metric", enum_values, label_context=label_context, amount=float(standard_logging_payload["prompt_tokens"]), ) PrometheusLogger._inc_labeled_counter( self, self.litellm_output_tokens_metric, "litellm_output_tokens_metric", enum_values, label_context=label_context, amount=float(standard_logging_payload["completion_tokens"]), ) # Token-type detail metrics — sparse, only emitted when the provider # reports a non-zero value in usage.prompt_tokens_details / # usage.completion_tokens_details. self._increment_token_detail_metrics( standard_logging_payload=standard_logging_payload, enum_values=enum_values, label_context=label_context, ) def _increment_token_detail_metrics( self, standard_logging_payload: StandardLoggingPayload, enum_values: UserAPIKeyLabelValues, label_context: Optional[PrometheusLabelFactoryContext] = None, ) -> None: """ Increment per-token-type counters from the Usage object that providers attach to the request. The Usage dict is plumbed onto ``standard_logging_payload["metadata"]["usage_object"]`` by ``get_standard_logging_object_payload``. Each counter is only incremented when the underlying value is > 0, so scrape output stays sparse for providers that don't report these details (most non-OpenAI/Anthropic models). """ metadata = standard_logging_payload.get("metadata") or {} usage_object = metadata.get("usage_object") if isinstance(metadata, dict) else None if not isinstance(usage_object, dict): return prompt_details = usage_object.get("prompt_tokens_details") or {} completion_details = usage_object.get("completion_tokens_details") or {} detail_metrics: List[Tuple[Any, DEFINED_PROMETHEUS_METRICS, Any]] = [ ( self.litellm_input_cached_tokens_metric, "litellm_input_cached_tokens_metric", (prompt_details.get("cached_tokens") if isinstance(prompt_details, dict) else None), ), ( self.litellm_input_cache_creation_tokens_metric, "litellm_input_cache_creation_tokens_metric", (prompt_details.get("cache_creation_tokens") if isinstance(prompt_details, dict) else None), ), ( self.litellm_input_audio_tokens_metric, "litellm_input_audio_tokens_metric", (prompt_details.get("audio_tokens") if isinstance(prompt_details, dict) else None), ), ( self.litellm_output_reasoning_tokens_metric, "litellm_output_reasoning_tokens_metric", (completion_details.get("reasoning_tokens") if isinstance(completion_details, dict) else None), ), ( self.litellm_output_audio_tokens_metric, "litellm_output_audio_tokens_metric", (completion_details.get("audio_tokens") if isinstance(completion_details, dict) else None), ), ] PrometheusLogger._inc_sparse_usage_counters( self, detail_metrics, enum_values=enum_values, label_context=label_context, ) def _increment_media_generation_metrics( self, standard_logging_payload: StandardLoggingPayload, enum_values: UserAPIKeyLabelValues, label_context: PrometheusLabelFactoryContext | None = None, ) -> None: """ Increment video-seconds and images-generated counters from ``standard_logging_payload["metadata"]["usage_object"]``. Video providers report ``duration_seconds`` there; image generation calls report ``output_image_count``. Both are sparse: only emitted when the value is present and > 0, so token-only call types are unaffected. """ metadata = standard_logging_payload.get("metadata") or {} usage_object = metadata.get("usage_object") if isinstance(metadata, dict) else None if not isinstance(usage_object, dict): return media_metrics: list[tuple[Any, DEFINED_PROMETHEUS_METRICS, Any]] = [ ( self.litellm_video_duration_seconds_metric, "litellm_video_duration_seconds_metric", usage_object.get("duration_seconds"), ), ( self.litellm_images_generated_metric, "litellm_images_generated_metric", usage_object.get("output_image_count"), ), ] PrometheusLogger._inc_sparse_usage_counters( self, media_metrics, enum_values=enum_values, label_context=label_context, ) def _inc_sparse_usage_counters( self, counters_with_values: list[tuple[Any, DEFINED_PROMETHEUS_METRICS, Any]], enum_values: UserAPIKeyLabelValues, label_context: PrometheusLabelFactoryContext | None = None, ) -> None: """ Increment each ``(counter, metric_name, value)`` entry whose value is a positive number. Non-numeric values (including booleans from malformed provider usage dicts) and values <= 0 are skipped, keeping scrape output sparse. """ for counter, metric_name, value in counters_with_values: if isinstance(value, bool) or not isinstance(value, (int, float)) or value <= 0: continue PrometheusLogger._inc_labeled_counter( self, counter, metric_name, enum_values, label_context=label_context, amount=float(value), ) def _increment_cache_metrics( self, standard_logging_payload: StandardLoggingPayload, enum_values: UserAPIKeyLabelValues, label_context: Optional[PrometheusLabelFactoryContext] = None, ): """ Increment cache-related Prometheus metrics based on cache hit/miss status. Args: standard_logging_payload: Contains cache_hit field (True/False/None) enum_values: Label values for Prometheus metrics """ cache_hit = standard_logging_payload.get("cache_hit") if cache_hit is None: # Historically these metrics only tracked LiteLLM caching. # Provider prompt-caching metrics are still emitted below. pass elif cache_hit is True: # Increment cache hits counter PrometheusLogger._inc_labeled_counter( self, self.litellm_cache_hits_metric, "litellm_cache_hits_metric", enum_values, label_context=label_context, ) # Increment cached tokens counter total_tokens = standard_logging_payload.get("total_tokens", 0) if total_tokens > 0: PrometheusLogger._inc_labeled_counter( self, self.litellm_cached_tokens_metric, "litellm_cached_tokens_metric", enum_values, label_context=label_context, amount=float(total_tokens), ) else: # cache_hit is False - increment cache misses counter PrometheusLogger._inc_labeled_counter( self, self.litellm_cache_misses_metric, "litellm_cache_misses_metric", enum_values, label_context=label_context, ) # Provider prompt caching metrics are independent of LiteLLM cache_hit. provider_cache_read_tokens = 0 provider_cache_creation_tokens = 0 usage_obj = (standard_logging_payload.get("metadata", {}) or {}).get("usage_object") if isinstance(usage_obj, dict): # Prefer explicit provider cache fields when available. _read = usage_obj.get("cache_read_input_tokens") _write = usage_obj.get("cache_creation_input_tokens") if isinstance(_read, int): provider_cache_read_tokens = _read if isinstance(_write, int): provider_cache_creation_tokens = _write # Fallback to prompt_tokens_details.cached_tokens (common normalization point). # Only fallback when the explicit field is genuinely absent (None). if _read is None: prompt_details = usage_obj.get("prompt_tokens_details") if isinstance(prompt_details, dict): cached_tokens = prompt_details.get("cached_tokens") if isinstance(cached_tokens, int): provider_cache_read_tokens = cached_tokens if provider_cache_read_tokens > 0: PrometheusLogger._inc_labeled_counter( self, self.litellm_provider_cache_read_input_tokens_metric, "litellm_provider_cache_read_input_tokens_metric", enum_values, label_context=label_context, amount=float(provider_cache_read_tokens), ) if provider_cache_creation_tokens > 0: PrometheusLogger._inc_labeled_counter( self, self.litellm_provider_cache_creation_input_tokens_metric, "litellm_provider_cache_creation_input_tokens_metric", enum_values, label_context=label_context, amount=float(provider_cache_creation_tokens), ) def _increment_mcp_tool_call_metrics( self, standard_logging_payload: StandardLoggingPayload, enum_values: UserAPIKeyLabelValues, response_cost: float, ) -> None: metadata = standard_logging_payload.get("metadata") if not isinstance(metadata, dict): return mcp_meta = metadata.get("mcp_tool_call_metadata") if not isinstance(mcp_meta, dict): return mcp_enum_values = UserAPIKeyLabelValues( mcp_tool_name=mcp_meta.get("name"), mcp_server_name=mcp_meta.get("mcp_server_name"), hashed_api_key=enum_values.hashed_api_key, api_key_alias=enum_values.api_key_alias, team=enum_values.team, team_alias=enum_values.team_alias, user=enum_values.user, end_user=enum_values.end_user, ) mcp_label_context = PrometheusLabelFactoryContext(mcp_enum_values) PrometheusLogger._inc_labeled_counter( self, self.litellm_mcp_tool_calls_total, "litellm_mcp_tool_calls_total", mcp_enum_values, label_context=mcp_label_context, ) if response_cost > 0: PrometheusLogger._inc_labeled_counter( self, self.litellm_mcp_tool_call_spend_metric, "litellm_mcp_tool_call_spend_metric", mcp_enum_values, label_context=mcp_label_context, amount=response_cost, ) async def _increment_remaining_budget_metrics( self, user_api_team: Optional[str], user_api_team_alias: Optional[str], user_api_key: Optional[str], user_api_key_alias: Optional[str], litellm_params: dict, response_cost: float, user_id: Optional[str] = None, user_api_key_org_id: Optional[str] = None, ): if ( isinstance(self.litellm_remaining_team_budget_metric, NoOpMetric) and isinstance(self.litellm_remaining_api_key_budget_metric, NoOpMetric) and isinstance(self.litellm_remaining_user_budget_metric, NoOpMetric) and isinstance(self.litellm_remaining_org_budget_metric, NoOpMetric) ): return _metadata = litellm_params.get("metadata") or {} _team_spend = _metadata.get("user_api_key_team_spend", None) _team_max_budget = _metadata.get("user_api_key_team_max_budget", None) _api_key_spend = _metadata.get("user_api_key_spend", None) _api_key_max_budget = _metadata.get("user_api_key_max_budget", None) _user_spend = _metadata.get("user_api_key_user_spend", None) _user_max_budget = _metadata.get("user_api_key_user_max_budget", None) # Bound the per-request budget-metric emission so that slow Redis/DB # lookups under load cannot consume the whole LoggingWorker watchdog # (LOGGING_WORKER_MAX_TIME_PER_COROUTINE, default 20s) and get the entire # success-logging event cancelled. Budget gauges are also refreshed by the # periodic cron every PROMETHEUS_BUDGET_METRICS_REFRESH_INTERVAL_MINUTES, # so dropping one slow per-request emission only loses sub-cron real-time # detail, not correctness. budget_metrics_timeout = _get_budget_metrics_per_request_timeout() gather_coro = asyncio.gather( self._set_api_key_budget_metrics_after_api_request( user_api_key=user_api_key, user_api_key_alias=user_api_key_alias, response_cost=response_cost, key_max_budget=_api_key_max_budget, key_spend=_api_key_spend, ), self._set_team_budget_metrics_after_api_request( user_api_team=user_api_team, user_api_team_alias=user_api_team_alias, team_spend=_team_spend, team_max_budget=_team_max_budget, response_cost=response_cost, ), self._set_user_budget_metrics_after_api_request( user_id=user_id, user_spend=_user_spend, user_max_budget=_user_max_budget, response_cost=response_cost, ), self._set_org_budget_metrics_after_api_request( org_id=user_api_key_org_id, response_cost=response_cost, ), return_exceptions=True, ) try: results = await asyncio.wait_for(gather_coro, timeout=budget_metrics_timeout) except asyncio.TimeoutError: verbose_logger.debug( "[Non-Blocking] Prometheus: per-request budget metric emission " "exceeded %ss under load; skipping (values are refreshed by the " "periodic budget-metrics cron job).", budget_metrics_timeout, ) return for i, r in enumerate(results): if isinstance(r, Exception): verbose_logger.debug( f"[Non-Blocking] Prometheus: Budget metric lookup {['key', 'team', 'user', 'org'][i]} failed: {r}" ) def _increment_top_level_request_and_spend_metrics( self, end_user_id: Optional[str], user_api_key: Optional[str], user_api_key_alias: Optional[str], model: Optional[str], user_api_team: Optional[str], user_api_team_alias: Optional[str], user_id: Optional[str], response_cost: float, enum_values: UserAPIKeyLabelValues, label_context: Optional[PrometheusLabelFactoryContext] = None, ): PrometheusLogger._inc_labeled_counter( self, self.litellm_requests_metric, "litellm_requests_metric", enum_values, label_context=label_context, ) PrometheusLogger._inc_labeled_counter( self, self.litellm_spend_metric, "litellm_spend_metric", enum_values, label_context=label_context, amount=float(response_cost), ) @staticmethod def _get_remaining_from_v3_rate_limit_headers( standard_logging_payload: StandardLoggingPayload | None, rate_limit_type: Literal["requests", "tokens"], ) -> int | None: """ Read the per-(key, model) remaining value emitted by the v3 rate limiter (``parallel_request_limiter_v3.py``), which writes ``x-ratelimit-model_per_key-remaining-{requests,tokens}`` into ``standard_logging_object.hidden_params.additional_headers`` instead of the ``litellm-key-remaining-*`` metadata keys the legacy limiter sets. The header carries no model group; it always refers to this request's model group, which is what the gauges are labeled with. Values are written in-process as plain ints (never HTTP-serialized strings), so anything else is rejected rather than coerced. """ if standard_logging_payload is None: return None hidden_params = standard_logging_payload.get("hidden_params") if hidden_params is None: return None additional_headers = hidden_params.get("additional_headers") if additional_headers is None: return None value = dict(additional_headers).get(f"x-ratelimit-model_per_key-remaining-{rate_limit_type}") if isinstance(value, bool) or not isinstance(value, int): return None return value def _set_virtual_key_rate_limit_metrics( self, user_api_key: Optional[str], user_api_key_alias: Optional[str], kwargs: dict, metadata: dict, model_id: Optional[str] = None, ): from litellm.proxy.common_utils.callback_utils import ( get_model_group_from_litellm_kwargs, ) # Set remaining rpm/tpm for API Key + model # see parallel_request_limiter.py - variables are set there model_group = get_model_group_from_litellm_kwargs(kwargs) remaining_requests_variable_name = f"litellm-key-remaining-requests-{model_group}" remaining_tokens_variable_name = f"litellm-key-remaining-tokens-{model_group}" standard_logging_payload: StandardLoggingPayload | None = kwargs.get("standard_logging_object") remaining_requests = metadata.get(remaining_requests_variable_name) if remaining_requests is None: remaining_requests = self._get_remaining_from_v3_rate_limit_headers( standard_logging_payload=standard_logging_payload, rate_limit_type="requests" ) if remaining_requests is None: remaining_requests = sys.maxsize remaining_tokens = metadata.get(remaining_tokens_variable_name) if remaining_tokens is None: remaining_tokens = self._get_remaining_from_v3_rate_limit_headers( standard_logging_payload=standard_logging_payload, rate_limit_type="tokens" ) if remaining_tokens is None: remaining_tokens = sys.maxsize enum_values = UserAPIKeyLabelValues( hashed_api_key=user_api_key, api_key_alias=user_api_key_alias, model=model_group, model_id=model_id, custom_metadata_labels=get_custom_labels_from_metadata( metadata=_get_combined_custom_metadata_from_standard_logging_payload( standard_logging_payload=kwargs.get("standard_logging_object") ) ), ) label_context = PrometheusLabelFactoryContext(enum_values) requests_labels = prometheus_label_factory( supported_enum_labels=self.get_labels_for_metric("litellm_remaining_api_key_requests_for_model"), enum_values=enum_values, label_context=label_context, ) self.litellm_remaining_api_key_requests_for_model.labels(**requests_labels).set(remaining_requests) tokens_labels = prometheus_label_factory( supported_enum_labels=self.get_labels_for_metric("litellm_remaining_api_key_tokens_for_model"), enum_values=enum_values, label_context=label_context, ) self.litellm_remaining_api_key_tokens_for_model.labels(**tokens_labels).set(remaining_tokens) def _set_latency_metrics( self, kwargs: dict, model: Optional[str], user_api_key: Optional[str], user_api_key_alias: Optional[str], user_api_team: Optional[str], user_api_team_alias: Optional[str], enum_values: UserAPIKeyLabelValues, label_context: Optional[PrometheusLabelFactoryContext] = None, ): # latency metrics end_time: datetime = kwargs.get("end_time") or datetime.now() start_time: Optional[datetime] = kwargs.get("start_time") api_call_start_time = kwargs.get("api_call_start_time", None) completion_start_time = kwargs.get("completion_start_time", None) time_to_first_token_seconds = self._safe_duration_seconds( start_time=api_call_start_time, end_time=completion_start_time, ) if ( time_to_first_token_seconds is not None and kwargs.get("stream", False) is True # only emit for streaming requests ): _ttft_labels = prometheus_label_factory( supported_enum_labels=self.get_labels_for_metric( metric_name="litellm_llm_api_time_to_first_token_metric" ), enum_values=enum_values, label_context=label_context, ) self.litellm_llm_api_time_to_first_token_metric.labels(**_ttft_labels).observe(time_to_first_token_seconds) self._track_end_user_metric_series( self.litellm_llm_api_time_to_first_token_metric, "litellm_llm_api_time_to_first_token_metric", _ttft_labels, ) else: verbose_logger.debug( "Time to first token metric not emitted, stream option in model_parameters is not True" ) api_call_total_time_seconds = self._safe_duration_seconds( start_time=api_call_start_time, end_time=end_time, ) if api_call_total_time_seconds is not None: _labels = prometheus_label_factory( supported_enum_labels=self.get_labels_for_metric(metric_name="litellm_llm_api_latency_metric"), enum_values=enum_values, label_context=label_context, ) self.litellm_llm_api_latency_metric.labels(**_labels).observe(api_call_total_time_seconds) self._track_end_user_metric_series( self.litellm_llm_api_latency_metric, "litellm_llm_api_latency_metric", _labels, ) # total request latency total_time_seconds = self._safe_duration_seconds( start_time=start_time, end_time=end_time, ) if total_time_seconds is not None: _labels = prometheus_label_factory( supported_enum_labels=self.get_labels_for_metric(metric_name="litellm_request_total_latency_metric"), enum_values=enum_values, label_context=label_context, ) self.litellm_request_total_latency_metric.labels(**_labels).observe(total_time_seconds) self._track_end_user_metric_series( self.litellm_request_total_latency_metric, "litellm_request_total_latency_metric", _labels, ) # request queue time (time from arrival to processing start) _litellm_params = kwargs.get("litellm_params", {}) or {} queue_time_seconds = (_litellm_params.get("metadata") or {}).get("queue_time_seconds") if queue_time_seconds is not None and queue_time_seconds >= 0: _labels = prometheus_label_factory( supported_enum_labels=self.get_labels_for_metric(metric_name="litellm_request_queue_time_seconds"), enum_values=enum_values, label_context=label_context, ) self.litellm_request_queue_time_metric.labels(**_labels).observe(queue_time_seconds) self._track_end_user_metric_series( self.litellm_request_queue_time_metric, "litellm_request_queue_time_seconds", _labels, ) async def async_log_failure_event(self, kwargs, response_obj, start_time, end_time): verbose_logger.debug( "prometheus Logging - Enters failure logging function (kwargs keys: %s)", list(kwargs.keys()) if isinstance(kwargs, dict) else type(kwargs).__name__, ) standard_logging_payload: StandardLoggingPayload = kwargs.get("standard_logging_object", {}) if self._should_skip_metrics_for_invalid_key(kwargs=kwargs, standard_logging_payload=standard_logging_payload): return model = kwargs.get("model", "") litellm_params = kwargs.get("litellm_params", {}) or {} get_end_user_id_for_cost_tracking = _get_cached_end_user_id_for_cost_tracking() end_user_id = get_end_user_id_for_cost_tracking(litellm_params, service_type="prometheus") user_id = standard_logging_payload["metadata"]["user_api_key_user_id"] user_api_key = standard_logging_payload["metadata"]["user_api_key_hash"] user_api_key_alias = standard_logging_payload["metadata"]["user_api_key_alias"] user_api_team = standard_logging_payload["metadata"]["user_api_key_team_id"] user_api_team_alias = standard_logging_payload["metadata"]["user_api_key_team_alias"] user_api_key_org_id = standard_logging_payload["metadata"].get("user_api_key_org_id") try: enum_values = UserAPIKeyLabelValues( end_user=end_user_id, hashed_api_key=user_api_key, api_key_alias=user_api_key_alias, model=model, team=user_api_team, team_alias=user_api_team_alias, user=user_id, model_id=standard_logging_payload.get("model_id", ""), custom_metadata_labels=get_custom_labels_from_metadata( metadata=_get_combined_custom_metadata_from_standard_logging_payload( standard_logging_payload=standard_logging_payload ) ), ) PrometheusLogger._inc_labeled_counter( self, self.litellm_llm_api_failed_requests_metric, "litellm_llm_api_failed_requests_metric", enum_values, ) self.set_llm_deployment_failure_metrics(kwargs) await self._set_org_budget_metrics_after_api_request( org_id=user_api_key_org_id, response_cost=0, ) except Exception as e: verbose_logger.exception("prometheus Layer Error(): Exception occured - {}".format(str(e))) pass pass def _extract_status_code( self, kwargs: Optional[dict] = None, enum_values: Optional[Any] = None, exception: Optional[Exception] = None, ) -> Optional[int]: """ Extract HTTP status code from various input formats for validation. This is a centralized helper to extract status code from different callback function signatures. Handles both ProxyException (uses 'code') and standard exceptions (uses 'status_code'). Args: kwargs: Dictionary potentially containing 'exception' key enum_values: Object with 'status_code' attribute exception: Exception object to extract status code from directly Returns: Status code as integer if found, None otherwise """ status_code = None # Try from enum_values first (most common in our callbacks) if enum_values and hasattr(enum_values, "status_code") and enum_values.status_code: try: status_code = int(enum_values.status_code) except (ValueError, TypeError): pass if not status_code and exception: # ProxyException uses 'code' attribute, other exceptions may use 'status_code' status_code = getattr(exception, "status_code", None) or getattr(exception, "code", None) if status_code is not None: try: status_code = int(status_code) except (ValueError, TypeError): status_code = None if not status_code and kwargs: exception_in_kwargs = kwargs.get("exception") if exception_in_kwargs: status_code = getattr(exception_in_kwargs, "status_code", None) or getattr( exception_in_kwargs, "code", None ) if status_code is not None: try: status_code = int(status_code) except (ValueError, TypeError): status_code = None return status_code def _is_invalid_api_key_request( self, status_code: Optional[int], exception: Optional[Exception] = None, ) -> bool: """ Determine if a request has an invalid API key based on status code and exception. This method prevents invalid authentication attempts from being recorded in Prometheus metrics. A 401 status code is the definitive indicator of authentication failure. Additionally, we check exception messages for authentication error patterns to catch cases where the exception hasn't been converted to a ProxyException yet. Args: status_code: HTTP status code (401 indicates authentication error) exception: Exception object to check for auth-related error messages Returns: True if the request has an invalid API key and metrics should be skipped, False otherwise """ if status_code == 401: return True # Handle cases where AssertionError is raised before conversion to ProxyException if exception is not None: exception_str = str(exception).lower() auth_error_patterns = [ "virtual key expected", "expected to start with 'sk-'", "authentication error", "invalid api key", "api key not valid", ] if any(pattern in exception_str for pattern in auth_error_patterns): return True return False def _should_skip_metrics_for_invalid_key( self, kwargs: Optional[dict] = None, user_api_key_dict: Optional[Any] = None, enum_values: Optional[Any] = None, standard_logging_payload: Optional[Union[dict, StandardLoggingPayload]] = None, exception: Optional[Exception] = None, ) -> bool: """ Determine if Prometheus metrics should be skipped for invalid API key requests. This is a centralized validation method that extracts status code and exception information from various callback function signatures and determines if the request represents an invalid API key attempt that should be filtered from metrics. Args: kwargs: Dictionary potentially containing exception and other data user_api_key_dict: User API key authentication object (currently unused) enum_values: Object with status_code attribute standard_logging_payload: Standard logging payload dictionary exception: Exception object to check directly Returns: True if metrics should be skipped (invalid key detected), False otherwise """ status_code = self._extract_status_code( kwargs=kwargs, enum_values=enum_values, exception=exception, ) if exception is None and kwargs: exception = kwargs.get("exception") if self._is_invalid_api_key_request(status_code, exception=exception): verbose_logger.debug( "Skipping Prometheus metrics for invalid API key request: " f"status_code={status_code}, exception={type(exception).__name__ if exception else None}" ) return True return False @staticmethod def _extract_api_provider_from_request_data(request_data: dict) -> Optional[str]: """ Best-effort provider for the client-side failure path. A request can fail before a deployment is resolved, so the provider is not always known. Prefer the resolved ``custom_llm_provider`` on ``litellm_params``, then any provider recovered onto a partial ``standard_logging_object`` (e.g. a stream that broke mid-flight), and finally infer it from the requested model name (e.g. ``gpt-4o-mini`` -> ``openai``) since the proxy's failure ``request_data`` usually carries only the client-supplied model. Return ``None`` when it cannot be determined so the label emits empty rather than a guess. """ litellm_params = request_data.get("litellm_params") or {} provider = litellm_params.get("custom_llm_provider") if provider: return provider standard_logging_object = request_data.get("standard_logging_object") or {} provider = standard_logging_object.get("custom_llm_provider") if provider: return provider model = litellm_params.get("model") or request_data.get("model") if not model: return None try: return litellm.get_llm_provider(model=model)[1] or None except litellm.exceptions.BadRequestError: return None except Exception as e: # noqa: BLE001 - metrics labeling must never break request/failure handling verbose_logger.debug( "prometheus: unexpected error inferring api_provider from model=%s: %s", model, e, ) return None async def async_post_call_failure_hook( self, request_data: dict, original_exception: Exception, user_api_key_dict: UserAPIKeyAuth, traceback_str: Optional[str] = None, ): """ Track client side failures Proxy level tracking - failed client side requests See :attr:`PrometheusMetricLabels.litellm_proxy_failed_requests_metric` for the authoritative list of labels emitted on this metric. """ from litellm.litellm_core_utils.litellm_logging import ( StandardLoggingPayloadSetup, ) if self._should_skip_metrics_for_invalid_key( user_api_key_dict=user_api_key_dict, exception=original_exception, ): return status_code = self._extract_status_code(exception=original_exception) try: _tags = StandardLoggingPayloadSetup._get_request_tags( litellm_params=request_data, proxy_server_request=request_data.get("proxy_server_request", {}), ) _metadata = request_data.get("metadata", {}) or {} model_id = _metadata.get("model_info", {}).get("id") or request_data.get("model_info", {}).get("id") rate_limit_category, rate_limit_type = self._extract_rate_limit_labels(original_exception) api_provider = self._extract_api_provider_from_request_data(request_data) enum_values = UserAPIKeyLabelValues( end_user=user_api_key_dict.end_user_id, user=user_api_key_dict.user_id, user_email=user_api_key_dict.user_email, hashed_api_key=user_api_key_dict.api_key, api_key_alias=user_api_key_dict.key_alias, team=user_api_key_dict.team_id, team_alias=user_api_key_dict.team_alias, org_id=user_api_key_dict.org_id, org_alias=user_api_key_dict.organization_alias, requested_model=request_data.get("model", ""), status_code=str(status_code), exception_status=str(status_code), exception_class=self._get_exception_class_name(original_exception), rate_limit_category=rate_limit_category, rate_limit_type=rate_limit_type, tags=_tags, route=user_api_key_dict.request_route, client_ip=_metadata.get("requester_ip_address"), user_agent=_metadata.get("user_agent"), model_id=model_id, api_provider=api_provider, stream=(str(request_data.get("stream")) if litellm.prometheus_emit_stream_label else None), ) _label_ctx = PrometheusLabelFactoryContext(enum_values) PrometheusLogger._inc_labeled_counter( self, self.litellm_proxy_failed_requests_metric, "litellm_proxy_failed_requests_metric", enum_values, label_context=_label_ctx, ) PrometheusLogger._inc_labeled_counter( self, self.litellm_proxy_total_requests_metric, "litellm_proxy_total_requests_metric", enum_values, label_context=_label_ctx, ) except Exception as e: verbose_logger.exception("prometheus Layer Error(): Exception occured - {}".format(str(e))) pass async def async_post_call_success_hook(self, data: dict, user_api_key_dict: UserAPIKeyAuth, response): """ Proxy level tracking - triggered when the proxy responds with a success response to the client Note: litellm_proxy_total_requests_metric is NOT incremented here to avoid double-counting. It is incremented in async_log_success_event which fires for all successful requests (both streaming and non-streaming). """ pass def _safe_get(self, obj: Any, key: str, default: Any = None) -> Any: """Get value from dict or Pydantic model.""" if obj is None: return default if isinstance(obj, dict): return obj.get(key, default) return getattr(obj, key, default) def _extract_deployment_failure_label_values(self, request_kwargs: dict) -> Dict[str, Optional[str]]: """ Extract label values for deployment failure metrics from all available sources in request_kwargs. Falls back to litellm_params metadata and user_api_key_auth when standard_logging_payload has None values. """ standard_logging_payload = request_kwargs.get("standard_logging_object", {}) or {} _litellm_params = request_kwargs.get("litellm_params", {}) or {} _metadata_raw = self._safe_get(standard_logging_payload, "metadata") or {} if isinstance(_metadata_raw, dict): _metadata = _metadata_raw else: _metadata = { "user_api_key_alias": getattr(_metadata_raw, "user_api_key_alias", None), "user_api_key_team_id": getattr(_metadata_raw, "user_api_key_team_id", None), "user_api_key_team_alias": getattr(_metadata_raw, "user_api_key_team_alias", None), "user_api_key_hash": getattr(_metadata_raw, "user_api_key_hash", None), "requester_ip_address": getattr(_metadata_raw, "requester_ip_address", None), "user_agent": getattr(_metadata_raw, "user_agent", None), } _litellm_params_metadata = _litellm_params.get("metadata", {}) or {} # Extract user_api_key_auth if present (proxy injects this, skipped in merge) user_api_key_auth = _litellm_params_metadata.get("user_api_key_auth") def _get_api_key_alias() -> Optional[str]: val = _metadata.get("user_api_key_alias") if val is not None: return val val = _litellm_params_metadata.get("user_api_key_alias") if val is not None: return val if user_api_key_auth is not None: return getattr(user_api_key_auth, "key_alias", None) return None def _get_team_id() -> Optional[str]: val = _metadata.get("user_api_key_team_id") if val is not None: return val val = _litellm_params_metadata.get("user_api_key_team_id") if val is not None: return val if user_api_key_auth is not None: return getattr(user_api_key_auth, "team_id", None) return None def _get_team_alias() -> Optional[str]: val = _metadata.get("user_api_key_team_alias") if val is not None: return val val = _litellm_params_metadata.get("user_api_key_team_alias") if val is not None: return val if user_api_key_auth is not None: return getattr(user_api_key_auth, "team_alias", None) return None def _get_hashed_api_key() -> Optional[str]: val = _metadata.get("user_api_key_hash") if val is not None: return val val = _litellm_params_metadata.get("user_api_key_hash") if val is not None: return val if user_api_key_auth is not None: return getattr(user_api_key_auth, "api_key", None) or getattr(user_api_key_auth, "api_key_hash", None) return None return { "api_key_alias": _get_api_key_alias(), "team": _get_team_id(), "team_alias": _get_team_alias(), "hashed_api_key": _get_hashed_api_key(), "client_ip": _metadata.get("requester_ip_address") or _litellm_params_metadata.get("requester_ip_address"), "user_agent": _metadata.get("user_agent") or _litellm_params_metadata.get("user_agent"), } def set_llm_deployment_failure_metrics(self, request_kwargs: dict): """ Sets Failure metrics when an LLM API call fails - mark the deployment as partial outage - increment deployment failure responses metric - increment deployment total requests metric Args: request_kwargs: dict """ try: verbose_logger.debug("setting remaining tokens requests metric") standard_logging_payload: StandardLoggingPayload = request_kwargs.get("standard_logging_object", {}) _litellm_params = request_kwargs.get("litellm_params", {}) or {} litellm_model_name = request_kwargs.get("model", None) model_group = standard_logging_payload.get("model_group", None) api_base = standard_logging_payload.get("api_base", None) model_id = standard_logging_payload.get("model_id", None) exception = request_kwargs.get("exception", None) # Fallback: model_id from litellm_metadata.model_info if model_id is None: _model_info = ( (_litellm_params.get("litellm_metadata") or {}).get("model_info") or (_litellm_params.get("metadata") or {}).get("model_info") or {} ) model_id = _model_info.get("id") # Fallback: model_group from litellm_metadata if model_group is None: model_group = (_litellm_params.get("litellm_metadata") or {}).get("model_group") or ( _litellm_params.get("metadata") or {} ).get("model_group") llm_provider = _litellm_params.get("custom_llm_provider", None) if self._should_skip_metrics_for_invalid_key( kwargs=request_kwargs, standard_logging_payload=standard_logging_payload, ): return # Extract context labels from all available sources (fix for None labels) fallback_values = self._extract_deployment_failure_label_values(request_kwargs) _metadata = standard_logging_payload.get("metadata", {}) or {} hashed_api_key = fallback_values.get("hashed_api_key") or _metadata.get("user_api_key_hash") api_key_alias = fallback_values.get("api_key_alias") or _metadata.get("user_api_key_alias") team = fallback_values.get("team") or _metadata.get("user_api_key_team_id") team_alias = fallback_values.get("team_alias") or _metadata.get("user_api_key_team_alias") client_ip = fallback_values.get("client_ip") or _metadata.get("requester_ip_address") user_agent = fallback_values.get("user_agent") or _metadata.get("user_agent") # exception_status: prefer status_code, fallback to exception class for known types exception_status = None if exception is not None: exception_status = str(getattr(exception, "status_code", None)) if exception_status == "None" or not exception_status: code = getattr(exception, "code", None) if code is not None: exception_status = str(code) # On LiteLLM-side rejects (no deployment picked), route request_kwargs["model"] # into requested_model and leave deployment-scoped labels empty. deployment_selected = bool(model_id) if deployment_selected: label_litellm_model_name = litellm_model_name label_model_id = model_id label_api_base = api_base label_api_provider = llm_provider label_requested_model = model_group or litellm_model_name else: label_litellm_model_name = "" label_model_id = "" label_api_base = "" label_api_provider = "" label_requested_model = litellm_model_name or model_group or "" enum_values = UserAPIKeyLabelValues( litellm_model_name=label_litellm_model_name, model_id=label_model_id, api_base=label_api_base, api_provider=label_api_provider, exception_status=exception_status, exception_class=(self._get_exception_class_name(exception) if exception else None), requested_model=label_requested_model, hashed_api_key=hashed_api_key, api_key_alias=api_key_alias, team=team, team_alias=team_alias, tags=standard_logging_payload.get("request_tags", []), client_ip=client_ip, user_agent=user_agent, ) """ log these labels ["litellm_model_name", "model_id", "api_base", "api_provider"] """ # Only mark a deployment outage when one was actually picked. if deployment_selected: self.set_deployment_partial_outage( litellm_model_name=litellm_model_name or "", model_id=model_id, api_base=api_base, api_provider=llm_provider or "", ) _deployment_label_ctx = PrometheusLabelFactoryContext(enum_values) if exception is not None: PrometheusLogger._inc_labeled_counter( self, self.litellm_deployment_failure_responses, "litellm_deployment_failure_responses", enum_values, label_context=_deployment_label_ctx, ) PrometheusLogger._inc_labeled_counter( self, self.litellm_deployment_total_requests, "litellm_deployment_total_requests", enum_values, label_context=_deployment_label_ctx, ) pass except Exception as e: verbose_logger.debug( "Prometheus Error: set_llm_deployment_failure_metrics. Exception occured - {}".format(str(e)) ) def _set_deployment_tpm_rpm_limit_metrics( self, model_info: dict, litellm_params: dict, litellm_model_name: Optional[str], model_id: Optional[str], api_base: Optional[str], llm_provider: Optional[str], ): """ Set the deployment TPM and RPM limits metrics """ tpm = model_info.get("tpm") or litellm_params.get("tpm") rpm = model_info.get("rpm") or litellm_params.get("rpm") if tpm is not None: _labels = prometheus_label_factory( supported_enum_labels=self.get_labels_for_metric(metric_name="litellm_deployment_tpm_limit"), enum_values=UserAPIKeyLabelValues( litellm_model_name=litellm_model_name, model_id=model_id, api_base=api_base, api_provider=llm_provider, ), ) self.litellm_deployment_tpm_limit.labels(**_labels).set(tpm) if rpm is not None: _labels = prometheus_label_factory( supported_enum_labels=self.get_labels_for_metric(metric_name="litellm_deployment_rpm_limit"), enum_values=UserAPIKeyLabelValues( litellm_model_name=litellm_model_name, model_id=model_id, api_base=api_base, api_provider=llm_provider, ), ) self.litellm_deployment_rpm_limit.labels(**_labels).set(rpm) async def _async_set_router_remaining_metrics( self, standard_logging_payload: StandardLoggingPayload, enum_values: UserAPIKeyLabelValues, label_context: Optional[PrometheusLabelFactoryContext] = None, ) -> None: """ Populate ``litellm_remaining_tokens_metric`` / ``litellm_remaining_requests_metric`` from the router's internal usage counters when the upstream provider did not return ``x-ratelimit-remaining-*`` response headers. OpenAI / Anthropic / Azure return remaining tokens/requests in response headers, but Bedrock and Vertex AI do not. This fallback computes ``configured_limit - current_usage`` via ``Router.get_remaining_model_group_usage`` so the same gauges are emitted for every provider when tpm/rpm is configured on the deployment. """ try: additional_headers = (standard_logging_payload.get("hidden_params", {}) or {}).get( "additional_headers" ) or {} already_have_tokens = additional_headers.get("x_ratelimit_remaining_tokens") is not None already_have_requests = additional_headers.get("x_ratelimit_remaining_requests") is not None if already_have_tokens and already_have_requests: return model_group = standard_logging_payload.get("model_group") if not model_group: return try: from litellm.proxy.proxy_server import llm_router except ImportError: llm_router = None if llm_router is None: return try: remaining_usage = await llm_router.get_remaining_model_group_usage(model_group) except Exception as e: verbose_logger.exception( "Prometheus: get_remaining_model_group_usage failed for model_group=%s: %s", model_group, e, ) return if not remaining_usage: return remaining_tokens = remaining_usage.get("x-ratelimit-remaining-tokens") remaining_requests = remaining_usage.get("x-ratelimit-remaining-requests") if not already_have_tokens and remaining_tokens is not None: _labels = prometheus_label_factory( supported_enum_labels=self.get_labels_for_metric(metric_name="litellm_remaining_tokens_metric"), enum_values=enum_values, label_context=label_context, ) self.litellm_remaining_tokens_metric.labels(**_labels).set(remaining_tokens) if not already_have_requests and remaining_requests is not None: _labels = prometheus_label_factory( supported_enum_labels=self.get_labels_for_metric(metric_name="litellm_remaining_requests_metric"), enum_values=enum_values, label_context=label_context, ) self.litellm_remaining_requests_metric.labels(**_labels).set(remaining_requests) except Exception as e: verbose_logger.exception( "Prometheus Error: _async_set_router_remaining_metrics. Exception occured - {}".format(str(e)) ) def set_llm_deployment_success_metrics( self, request_kwargs: dict, start_time, end_time, enum_values: UserAPIKeyLabelValues, output_tokens: float = 1.0, label_context: Optional[PrometheusLabelFactoryContext] = None, ): try: verbose_logger.debug("setting remaining tokens requests metric") standard_logging_payload: Optional[StandardLoggingPayload] = request_kwargs.get("standard_logging_object") if standard_logging_payload is None: return # Skip recording metrics for invalid API key requests if self._should_skip_metrics_for_invalid_key( kwargs=request_kwargs, enum_values=enum_values, standard_logging_payload=standard_logging_payload, ): return api_base = standard_logging_payload["api_base"] _litellm_params = request_kwargs.get("litellm_params", {}) or {} _metadata = get_litellm_metadata_from_kwargs(request_kwargs) litellm_model_name = request_kwargs.get("model", None) llm_provider = _litellm_params.get("custom_llm_provider", None) _model_info = _metadata.get("model_info") or {} model_id = _model_info.get("id", None) if _model_info or _litellm_params: self._set_deployment_tpm_rpm_limit_metrics( model_info=_model_info, litellm_params=_litellm_params, litellm_model_name=litellm_model_name, model_id=model_id, api_base=api_base, llm_provider=llm_provider, ) remaining_requests: Optional[int] = None remaining_tokens: Optional[int] = None if additional_headers := standard_logging_payload["hidden_params"]["additional_headers"]: # OpenAI / OpenAI Compatible headers remaining_requests = additional_headers.get("x_ratelimit_remaining_requests", None) remaining_tokens = additional_headers.get("x_ratelimit_remaining_tokens", None) if litellm_overhead_time_ms := standard_logging_payload["hidden_params"].get("litellm_overhead_time_ms"): _labels = prometheus_label_factory( supported_enum_labels=self.get_labels_for_metric(metric_name="litellm_overhead_latency_metric"), enum_values=enum_values, label_context=label_context, ) self.litellm_overhead_latency_metric.labels(**_labels).observe( litellm_overhead_time_ms / 1000 ) # set as seconds self._set_overhead_with_guardrails_metric( standard_logging_payload=standard_logging_payload, enum_values=enum_values, label_context=label_context, ) if remaining_requests: """ "model_group", "api_provider", "api_base", "litellm_model_name" """ _labels = prometheus_label_factory( supported_enum_labels=self.get_labels_for_metric(metric_name="litellm_remaining_requests_metric"), enum_values=enum_values, label_context=label_context, ) self.litellm_remaining_requests_metric.labels(**_labels).set(remaining_requests) if remaining_tokens: _labels = prometheus_label_factory( supported_enum_labels=self.get_labels_for_metric(metric_name="litellm_remaining_tokens_metric"), enum_values=enum_values, label_context=label_context, ) self.litellm_remaining_tokens_metric.labels(**_labels).set(remaining_tokens) """ log these labels ["litellm_model_name", "requested_model", model_id", "api_base", "api_provider"] """ self.set_deployment_healthy( litellm_model_name=litellm_model_name or "", model_id=model_id or "", api_base=api_base or "", api_provider=llm_provider or "", ) PrometheusLogger._inc_labeled_counter( self, self.litellm_deployment_success_responses, "litellm_deployment_success_responses", enum_values, label_context=label_context, ) PrometheusLogger._inc_labeled_counter( self, self.litellm_deployment_total_requests, "litellm_deployment_total_requests", enum_values, label_context=label_context, ) # Track deployment Latency response_ms: timedelta = end_time - start_time time_to_first_token_response_time: Optional[timedelta] = None if request_kwargs.get("stream", None) is not None and request_kwargs["stream"] is True: # only log ttft for streaming request time_to_first_token_response_time = request_kwargs.get("completion_start_time", end_time) - start_time # use the metric that is not None # if streaming - use time_to_first_token_response # if not streaming - use response_ms _latency: timedelta = time_to_first_token_response_time or response_ms _latency_seconds = _latency.total_seconds() # latency per output token latency_per_token = None if output_tokens is not None and output_tokens > 0: latency_per_token = _latency_seconds / output_tokens _labels = prometheus_label_factory( supported_enum_labels=self.get_labels_for_metric( metric_name="litellm_deployment_latency_per_output_token" ), enum_values=enum_values, label_context=label_context, ) self.litellm_deployment_latency_per_output_token.labels(**_labels).observe(latency_per_token) except Exception as e: verbose_logger.exception( "Prometheus Error: set_llm_deployment_success_metrics. Exception occured - {}".format(str(e)) ) return def _record_guardrail_metrics( self, guardrail_name: str, latency_seconds: float, status: str, error_type: Optional[str], hook_type: str, ): """ Record guardrail metrics for prometheus. Args: guardrail_name: Name of the guardrail latency_seconds: Execution latency in seconds status: "success", "error", or "intervened" error_type: Type of error if any, None otherwise hook_type: "pre_call", "during_call", or "post_call" """ try: # Record latency self.litellm_guardrail_latency_metric.labels( guardrail_name=guardrail_name, status=status, error_type=error_type or "none", hook_type=hook_type, ).observe(latency_seconds) # Record request count self.litellm_guardrail_requests_total.labels( guardrail_name=guardrail_name, status=status, hook_type=hook_type, ).inc() # Record error count if there was an error if status == "error" and error_type: self.litellm_guardrail_errors_total.labels( guardrail_name=guardrail_name, error_type=error_type, hook_type=hook_type, ).inc() except Exception as e: verbose_logger.debug(f"Error recording guardrail metrics: {str(e)}") ######################################## # Managed Batch Metric Recording Methods ######################################## def record_managed_batch_created( self, model: Optional[str], api_provider: Optional[str], user: Optional[str], user_email: Optional[str], api_key_alias: Optional[str], ): try: self.litellm_managed_batch_created_total.labels( model=model, api_provider=api_provider, user=user, user_email=user_email, api_key_alias=api_key_alias, ).inc() except Exception as e: verbose_logger.warning(f"Error recording batch created metric: {e}") def record_managed_file_size( self, size_bytes: int, purpose: str, file_type: str, model: Optional[str] = None, api_provider: Optional[str] = None, user: Optional[str] = None, ): """Record the size of a managed file. Uses a gauge (last-seen value per label combination).""" try: self.litellm_managed_file_size_bytes.labels( purpose=purpose, file_type=file_type, model=model or "", api_provider=api_provider or "", user=user or "", ).set(size_bytes) except Exception as e: verbose_logger.warning(f"Error recording file size metric: {e}") def record_managed_batch_duration( self, duration_seconds: float, model: Optional[str] = None, api_provider: Optional[str] = None, ): try: self.litellm_managed_batch_duration_seconds.labels( model=model or "", api_provider=api_provider or "", ).observe(duration_seconds) except Exception as e: verbose_logger.warning(f"Error recording batch duration metric: {e}") def record_managed_file_created( self, model: Optional[str], api_provider: Optional[str], user: Optional[str], user_email: Optional[str], api_key_alias: Optional[str], ): try: self.litellm_managed_file_created_total.labels( model=model, api_provider=api_provider, user=user, user_email=user_email, api_key_alias=api_key_alias, ).inc() except Exception as e: verbose_logger.warning(f"Error recording file created metric: {e}") def record_managed_file_deleted(self, result: str): """Record a managed file deletion attempt. result is 'success' or 'blocked'.""" try: self.litellm_managed_file_deleted_total.labels(result=result).inc() except Exception as e: verbose_logger.warning(f"Error recording file deleted metric: {e}") def record_check_batch_cost_run( self, jobs_polled: int, processed_models: Optional[List[Tuple[Optional[str], Optional[str]]]] = None, ): """ Record CheckBatchCost polling metrics. Args: jobs_polled: Number of unprocessed batches found processed_models: List of (model, api_provider) tuples for processed jobs """ import time try: self.litellm_check_batch_cost_last_run_timestamp.set(time.time()) self.litellm_check_batch_cost_jobs_polled.set(jobs_polled) if processed_models: for model, api_provider in processed_models: self.litellm_check_batch_cost_jobs_processed_total.labels( model=model or "", api_provider=api_provider or "", ).inc() except Exception as e: verbose_logger.warning(f"Error recording check batch cost metrics: {e}") def record_check_batch_cost_error(self, error_type: str): try: self.litellm_check_batch_cost_errors_total.labels( error_type=error_type, ).inc() except Exception as e: verbose_logger.warning(f"Error recording check batch cost error metric: {e}") @staticmethod def _get_exception_class_name(exception: Exception) -> str: # Some exception types pin the ``exception_class`` label to a legacy # value for back-compat with existing dashboards (e.g. proxy-side 429s # keep reporting as "HTTPException"). Honor that opt-in marker before # deriving the label from the runtime class name. Reading it via # ``getattr`` keeps this core integrations module free of a transitive # ``fastapi`` dependency. legacy_class_name = getattr(exception, "prometheus_exception_class_name", None) if isinstance(legacy_class_name, str) and legacy_class_name: return legacy_class_name # Same back-compat reasoning for ``BudgetExceededError``: the unified # rate-limit error work attached ``.llm_provider`` to budget errors # too (so callbacks reading ``StandardLoggingPayload`` get provider # attribution). Without this short-circuit, the provider prefix below # would silently flip the label from "BudgetExceededError" to e.g. # "Openai.BudgetExceededError" and break dashboards keyed on the # original value. try: from litellm.exceptions import BudgetExceededError except ImportError: BudgetExceededError = None # type: ignore[assignment,misc] if BudgetExceededError is not None and isinstance(exception, BudgetExceededError): return "BudgetExceededError" exception_class_name = "" if hasattr(exception, "llm_provider"): exception_class_name = getattr(exception, "llm_provider") or "" # pretty print the provider name on prometheus # eg. `openai` -> `Openai.` if len(exception_class_name) >= 1: exception_class_name = exception_class_name[0].upper() + exception_class_name[1:] + "." exception_class_name += exception.__class__.__name__ return exception_class_name @staticmethod def _extract_rate_limit_labels( exception: Optional[Exception], ) -> Tuple[Optional[str], Optional[str]]: """ Pull the unified ``category`` / ``rate_limit_type`` fields off any exception that declares them (``litellm.RateLimitError`` and bare- Exception subclasses like ``BudgetExceededError``). Values are validated against the :class:`RateLimitErrorCategory` / :class:`RateLimitType` enums so unrelated third-party exceptions that happen to declare ``.category`` / ``.rate_limit_type`` string attributes can't leak garbage into Prometheus label cardinality. """ if exception is None: return None, None return ( validate_rate_limit_category(getattr(exception, "category", None)), validate_rate_limit_type(getattr(exception, "rate_limit_type", None)), ) async def log_success_fallback_event(self, original_model_group: str, kwargs: dict, original_exception: Exception): """ Logs a successful LLM fallback event on prometheus """ from litellm.litellm_core_utils.litellm_logging import ( StandardLoggingMetadata, StandardLoggingPayloadSetup, ) verbose_logger.debug( "Prometheus: log_success_fallback_event, original_model_group: %s, kwargs: %s", original_model_group, kwargs, ) _metadata_key = get_metadata_variable_name_from_kwargs(kwargs) _metadata = kwargs.get(_metadata_key) or {} standard_metadata: StandardLoggingMetadata = StandardLoggingPayloadSetup.get_standard_logging_metadata( metadata=_metadata ) _new_model = kwargs.get("model") _tags = cast(List[str], kwargs.get("tags") or []) enum_values = UserAPIKeyLabelValues( requested_model=original_model_group, fallback_model=_new_model, hashed_api_key=standard_metadata["user_api_key_hash"], api_key_alias=standard_metadata["user_api_key_alias"], team=standard_metadata["user_api_key_team_id"], team_alias=standard_metadata["user_api_key_team_alias"], exception_status=str(getattr(original_exception, "status_code", None)), exception_class=self._get_exception_class_name(original_exception), tags=_tags, ) PrometheusLogger._inc_labeled_counter( self, self.litellm_deployment_successful_fallbacks, "litellm_deployment_successful_fallbacks", enum_values, label_context=PrometheusLabelFactoryContext(enum_values), ) async def log_failure_fallback_event(self, original_model_group: str, kwargs: dict, original_exception: Exception): """ Logs a failed LLM fallback event on prometheus """ from litellm.litellm_core_utils.litellm_logging import ( StandardLoggingMetadata, StandardLoggingPayloadSetup, ) verbose_logger.debug( "Prometheus: log_failure_fallback_event, original_model_group: %s, kwargs: %s", original_model_group, kwargs, ) _new_model = kwargs.get("model") _metadata_key = get_metadata_variable_name_from_kwargs(kwargs) _metadata = kwargs.get(_metadata_key) or {} _tags = cast(List[str], kwargs.get("tags") or []) standard_metadata: StandardLoggingMetadata = StandardLoggingPayloadSetup.get_standard_logging_metadata( metadata=_metadata ) enum_values = UserAPIKeyLabelValues( requested_model=original_model_group, fallback_model=_new_model, hashed_api_key=standard_metadata["user_api_key_hash"], api_key_alias=standard_metadata["user_api_key_alias"], team=standard_metadata["user_api_key_team_id"], team_alias=standard_metadata["user_api_key_team_alias"], exception_status=str(getattr(original_exception, "status_code", None)), exception_class=self._get_exception_class_name(original_exception), tags=_tags, ) PrometheusLogger._inc_labeled_counter( self, self.litellm_deployment_failed_fallbacks, "litellm_deployment_failed_fallbacks", enum_values, label_context=PrometheusLabelFactoryContext(enum_values), ) def set_litellm_deployment_state( self, state: int, litellm_model_name: str, model_id: Optional[str], api_base: Optional[str], api_provider: str, ): """ Set the deployment state. """ ### get labels _labels = prometheus_label_factory( supported_enum_labels=self.get_labels_for_metric(metric_name="litellm_deployment_state"), enum_values=UserAPIKeyLabelValues( litellm_model_name=litellm_model_name, model_id=model_id, api_base=api_base, api_provider=api_provider, ), ) self.litellm_deployment_state.labels(**_labels).set(state) def set_deployment_healthy( self, litellm_model_name: str, model_id: str, api_base: str, api_provider: str, ): self.set_litellm_deployment_state(0, litellm_model_name, model_id, api_base, api_provider) def set_deployment_partial_outage( self, litellm_model_name: str, model_id: Optional[str], api_base: Optional[str], api_provider: str, ): self.set_litellm_deployment_state(1, litellm_model_name, model_id, api_base, api_provider) def set_deployment_complete_outage( self, litellm_model_name: str, model_id: Optional[str], api_base: Optional[str], api_provider: str, ): self.set_litellm_deployment_state(2, litellm_model_name, model_id, api_base, api_provider) def increment_deployment_cooled_down( self, litellm_model_name: str, model_id: str, api_base: str, api_provider: str, exception_status: str, ): """ increment metric when litellm.Router / load balancing logic places a deployment in cool down """ self.litellm_deployment_cooled_down.labels( _sanitize_prometheus_label_value(litellm_model_name), _sanitize_prometheus_label_value(model_id), _sanitize_prometheus_label_value(api_base), _sanitize_prometheus_label_value(api_provider), _sanitize_prometheus_label_value(exception_status), ).inc() def increment_callback_logging_failure( self, callback_name: str, ): """ Increment metric when logging to a callback fails (e.g., s3_v2, langfuse, etc.) """ self.litellm_callback_logging_failures_metric.labels(callback_name=callback_name).inc() def track_provider_remaining_budget(self, provider: str, spend: float, budget_limit: float): """ Track provider remaining budget in Prometheus """ self.litellm_provider_remaining_budget_metric.labels(provider).set( self._safe_get_remaining_budget( max_budget=budget_limit, spend=spend, ) ) def _safe_get_remaining_budget(self, max_budget: Optional[float], spend: Optional[float]) -> float: if max_budget is None: return float("inf") if spend is None: return max_budget return max_budget - spend async def _initialize_budget_metrics( self, data_fetch_function: Callable[..., Awaitable[Tuple[List[Any], Optional[int]]]], set_metrics_function: Callable[[List[Any]], Awaitable[None]], data_type: Literal["teams", "keys", "users", "orgs"], ): """ Generic method to initialize budget metrics for teams or API keys. Args: data_fetch_function: Function to fetch data with pagination. set_metrics_function: Function to set metrics for the fetched data. data_type: String representing the type of data ("teams" or "keys") for logging purposes. """ from litellm.proxy.proxy_server import prisma_client if prisma_client is None: return try: page = 1 page_size = 50 data, total_count = await data_fetch_function(page_size=page_size, page=page) if total_count is None: total_count = len(data) # Calculate total pages needed total_pages = (total_count + page_size - 1) // page_size # Set metrics for first page of data await set_metrics_function(data) # Get and set metrics for remaining pages for page in range(2, total_pages + 1): data, _ = await data_fetch_function(page_size=page_size, page=page) await set_metrics_function(data) except Exception as e: verbose_logger.exception(f"Error initializing {data_type} budget metrics: {str(e)}") async def _initialize_team_budget_metrics(self): """ Initialize team budget metrics by reusing the generic pagination logic. """ from litellm.proxy.management_endpoints.team_endpoints import ( get_paginated_teams, ) from litellm.proxy.proxy_server import prisma_client if prisma_client is None: verbose_logger.debug("Prometheus: skipping team metrics initialization, DB not initialized") return async def fetch_teams(page_size: int, page: int) -> Tuple[List[LiteLLM_TeamTable], Optional[int]]: teams, total_count = await get_paginated_teams(prisma_client=prisma_client, page_size=page_size, page=page) if total_count is None: total_count = len(teams) return teams, total_count await self._initialize_budget_metrics( data_fetch_function=fetch_teams, set_metrics_function=self._set_team_list_budget_metrics, data_type="teams", ) async def _initialize_api_key_budget_metrics(self): """ Initialize API key budget metrics by reusing the generic pagination logic. """ from litellm.constants import UI_SESSION_TOKEN_TEAM_ID from litellm.proxy.management_endpoints.key_management_endpoints import ( _list_key_helper, ) from litellm.proxy.proxy_server import prisma_client if prisma_client is None: verbose_logger.debug("Prometheus: skipping key metrics initialization, DB not initialized") return async def fetch_keys( page_size: int, page: int ) -> Tuple[ List[Union[str, UserAPIKeyAuth, LiteLLM_DeletedVerificationToken]], Optional[int], ]: key_list_response = await _list_key_helper( prisma_client=prisma_client, page=page, size=page_size, user_id=None, team_id=None, key_alias=None, key_hash=None, exclude_team_id=UI_SESSION_TOKEN_TEAM_ID, return_full_object=True, organization_id=None, ) keys = key_list_response.get("keys", []) total_count = key_list_response.get("total_count") if total_count is None: total_count = len(keys) return keys, total_count await self._initialize_budget_metrics( data_fetch_function=fetch_keys, set_metrics_function=self._set_key_list_budget_metrics, data_type="keys", ) async def _initialize_user_budget_metrics(self): """ Initialize user budget metrics by reusing the generic pagination logic. """ from litellm.proxy.proxy_server import prisma_client if prisma_client is None: verbose_logger.debug("Prometheus: skipping user metrics initialization, DB not initialized") return async def fetch_users(page_size: int, page: int) -> Tuple[List[LiteLLM_UserTable], Optional[int]]: skip = (page - 1) * page_size users = await UserRepository(prisma_client).table.find_many( skip=skip, take=page_size, order={"created_at": "desc"}, ) total_count = await UserRepository(prisma_client).table.count() return users, total_count await self._initialize_budget_metrics( data_fetch_function=fetch_users, set_metrics_function=self._set_user_list_budget_metrics, data_type="users", ) async def _initialize_org_budget_metrics(self): """ Initialize org budget metrics by reusing the generic pagination logic. """ from litellm.proxy.proxy_server import prisma_client if prisma_client is None: verbose_logger.debug("Prometheus: skipping org metrics initialization, DB not initialized") return async def fetch_orgs(page_size: int, page: int) -> Tuple[list, Optional[int]]: skip = (page - 1) * page_size orgs = await OrganizationRepository(prisma_client).table.find_many( skip=skip, take=page_size, order={"created_at": "desc"}, include={"litellm_budget_table": True}, ) total_count = await OrganizationRepository(prisma_client).table.count() return orgs, total_count await self._initialize_budget_metrics( data_fetch_function=fetch_orgs, set_metrics_function=self._set_org_list_budget_metrics, data_type="orgs", ) async def initialize_remaining_budget_metrics(self): """ Handler for initializing remaining budget metrics for all teams to avoid metric discrepancies. Runs when prometheus logger starts up. - If redis cache is available, we use the pod lock manager to acquire a lock and initialize the metrics. - Ensures only one pod emits the metrics at a time. - If redis cache is not available, we initialize the metrics directly. """ from litellm.constants import PROMETHEUS_EMIT_BUDGET_METRICS_JOB_NAME from litellm.proxy.proxy_server import proxy_logging_obj pod_lock_manager = proxy_logging_obj.db_spend_update_writer.pod_lock_manager # if using redis, ensure only one pod emits the metrics at a time if pod_lock_manager and pod_lock_manager.redis_cache: if await pod_lock_manager.acquire_lock(cronjob_id=PROMETHEUS_EMIT_BUDGET_METRICS_JOB_NAME): try: await self._initialize_remaining_budget_metrics() finally: await pod_lock_manager.release_lock(cronjob_id=PROMETHEUS_EMIT_BUDGET_METRICS_JOB_NAME) else: # if not using redis, initialize the metrics directly await self._initialize_remaining_budget_metrics() async def _initialize_remaining_budget_metrics(self): """ Helper to initialize remaining budget metrics for all teams, API keys, and users. """ verbose_logger.debug("Emitting key, team, user, org budget metrics....") await self._initialize_team_budget_metrics() await self._initialize_api_key_budget_metrics() await self._initialize_user_budget_metrics() await self._initialize_org_budget_metrics() await self._initialize_user_and_team_count_metrics() async def _initialize_user_and_team_count_metrics(self): """ Initialize user and team count metrics by querying the database. Updates: - litellm_total_users: Total count of users in the database - litellm_active_users: Count of billable users (excludes SCIM-deactivated) - litellm_teams_count: Total count of teams in the database """ from litellm.proxy.proxy_server import prisma_client if prisma_client is None: verbose_logger.debug("Prometheus: skipping user/team count metrics initialization, DB not initialized") return try: # Get total user count total_users = await UserRepository(prisma_client).table.count() self.litellm_total_users_metric.set(total_users) verbose_logger.debug(f"Prometheus: set litellm_total_users to {total_users}") billable_users = await UserRepository(prisma_client).count_billable_users() self.litellm_active_users_metric.set(billable_users) verbose_logger.debug(f"Prometheus: set litellm_active_users to {billable_users}") # Get total team count total_teams = await TeamRepository(prisma_client).table.count() self.litellm_teams_count_metric.set(total_teams) verbose_logger.debug(f"Prometheus: set litellm_teams_count to {total_teams}") except Exception as e: verbose_logger.exception(f"Error initializing user/team count metrics: {str(e)}") async def _set_key_list_budget_metrics(self, keys: List[Union[str, UserAPIKeyAuth]]): """Helper function to set budget metrics for a list of keys""" for key in keys: if isinstance(key, UserAPIKeyAuth): self._set_key_budget_metrics(key) async def _set_team_list_budget_metrics(self, teams: List[LiteLLM_TeamTable]): """Helper function to set budget metrics for a list of teams""" for team in teams: self._set_team_budget_metrics(team) async def _set_user_list_budget_metrics(self, users: List[LiteLLM_UserTable]): """Helper function to set budget metrics for a list of users""" for user in users: self._set_user_budget_metrics(user) async def _set_org_list_budget_metrics(self, orgs: list): """Helper function to set budget metrics for a list of orgs""" for org in orgs: budget_table = getattr(org, "litellm_budget_table", None) self._set_org_budget_metrics( org_id=org.organization_id or "", org_alias=org.organization_alias or "", spend=org.spend or 0.0, max_budget=budget_table.max_budget if budget_table else None, budget_reset_at=(getattr(budget_table, "budget_reset_at", None) if budget_table else None), ) async def _set_team_budget_metrics_after_api_request( self, user_api_team: Optional[str], user_api_team_alias: Optional[str], team_spend: Optional[float], team_max_budget: Optional[float], response_cost: float, ): """ Set team budget metrics after an LLM API request - Assemble a LiteLLM_TeamTable object - looks up team info from db if not available in metadata - Set team budget metrics """ if isinstance(self.litellm_remaining_team_budget_metric, NoOpMetric): return if user_api_team: team_object = await self._assemble_team_object( team_id=user_api_team, team_alias=user_api_team_alias or "", spend=team_spend, max_budget=team_max_budget, response_cost=response_cost, ) self._set_team_budget_metrics(team_object) async def _assemble_team_object( self, team_id: str, team_alias: str, spend: Optional[float], max_budget: Optional[float], response_cost: float, ) -> LiteLLM_TeamTable: """ Assemble a LiteLLM_TeamTable object for fields not available in metadata, we fetch from db Fields not available in metadata: - `budget_reset_at` """ from litellm.proxy.auth.auth_checks import get_team_object from litellm.proxy.proxy_server import prisma_client, user_api_key_cache _total_team_spend = (spend or 0) + response_cost team_object = LiteLLM_TeamTable( team_id=team_id, team_alias=team_alias, spend=_total_team_spend, max_budget=max_budget, ) try: team_info = await get_team_object( team_id=team_id, prisma_client=prisma_client, user_api_key_cache=user_api_key_cache, ) except Exception as e: verbose_logger.debug(f"[Non-Blocking] Prometheus: Error getting team info: {str(e)}") return team_object if team_info: team_object.budget_reset_at = team_info.budget_reset_at if team_object.max_budget is None and team_info.max_budget is not None: team_object.max_budget = team_info.max_budget return team_object def _set_team_budget_metrics( self, team: LiteLLM_TeamTable, ): """ Set team budget metrics for a single team - Remaining Budget - Max Budget - Budget Reset At """ enum_values = UserAPIKeyLabelValues( team=team.team_id, team_alias=team.team_alias or "", ) _labels = prometheus_label_factory( supported_enum_labels=self.get_labels_for_metric(metric_name="litellm_remaining_team_budget_metric"), enum_values=enum_values, ) self.litellm_remaining_team_budget_metric.labels(**_labels).set( self._safe_get_remaining_budget( max_budget=team.max_budget, spend=team.spend, ) ) if team.max_budget is not None: _labels = prometheus_label_factory( supported_enum_labels=self.get_labels_for_metric(metric_name="litellm_team_max_budget_metric"), enum_values=enum_values, ) self.litellm_team_max_budget_metric.labels(**_labels).set(team.max_budget) if team.budget_reset_at is not None: _labels = prometheus_label_factory( supported_enum_labels=self.get_labels_for_metric( metric_name="litellm_team_budget_remaining_hours_metric" ), enum_values=enum_values, ) self.litellm_team_budget_remaining_hours_metric.labels(**_labels).set( self._get_remaining_hours_for_budget_reset(budget_reset_at=team.budget_reset_at) ) def set_team_members_metric(self, team: LiteLLM_TeamTable) -> None: """Set the team members gauge to the team's current member count.""" enum_values = UserAPIKeyLabelValues( team=team.team_id, team_alias=team.team_alias or "", ) _labels = prometheus_label_factory( supported_enum_labels=self.get_labels_for_metric(metric_name="litellm_team_members_metric"), enum_values=enum_values, ) self.litellm_team_members_metric.labels(**_labels).set(len(team.members_with_roles)) async def _set_org_budget_metrics_after_api_request( self, org_id: Optional[str], response_cost: float, ): """ Set org budget metrics after an LLM API request - Fetches org info via cache (get_org_object) - Sets org budget metrics """ if isinstance(self.litellm_remaining_org_budget_metric, NoOpMetric): return if not org_id: return from litellm.proxy.auth.auth_checks import get_org_object from litellm.proxy.proxy_server import prisma_client, user_api_key_cache if prisma_client is None: return try: org_info = await get_org_object( org_id=org_id, prisma_client=prisma_client, user_api_key_cache=user_api_key_cache, include_budget_table=True, ) except Exception as e: verbose_logger.debug(f"[Non-Blocking] Prometheus: Error getting org info: {str(e)}") return if org_info is None: return org_alias = org_info.organization_alias or "" _total_org_spend = (org_info.spend or 0.0) + response_cost budget_table = org_info.litellm_budget_table max_budget = budget_table.max_budget if budget_table else None budget_reset_at = getattr(budget_table, "budget_reset_at", None) if budget_table else None self._set_org_budget_metrics( org_id=org_id, org_alias=org_alias, spend=_total_org_spend, max_budget=max_budget, budget_reset_at=budget_reset_at, ) def _set_org_budget_metrics( self, org_id: str, org_alias: str, spend: float, max_budget: Optional[float], budget_reset_at: Optional[datetime], ): """ Set org budget metrics for a single org - Remaining Budget - Max Budget - Budget Reset At """ enum_values = UserAPIKeyLabelValues( org_id=org_id, org_alias=org_alias, ) _labels = prometheus_label_factory( supported_enum_labels=self.get_labels_for_metric(metric_name="litellm_remaining_org_budget_metric"), enum_values=enum_values, ) self.litellm_remaining_org_budget_metric.labels(**_labels).set( self._safe_get_remaining_budget( max_budget=max_budget, spend=spend, ) ) if max_budget is not None: _labels = prometheus_label_factory( supported_enum_labels=self.get_labels_for_metric(metric_name="litellm_org_max_budget_metric"), enum_values=enum_values, ) self.litellm_org_max_budget_metric.labels(**_labels).set(max_budget) if budget_reset_at is not None: _labels = prometheus_label_factory( supported_enum_labels=self.get_labels_for_metric( metric_name="litellm_org_budget_remaining_hours_metric" ), enum_values=enum_values, ) self.litellm_org_budget_remaining_hours_metric.labels(**_labels).set( self._get_remaining_hours_for_budget_reset(budget_reset_at=budget_reset_at) ) def _set_key_budget_metrics(self, user_api_key_dict: UserAPIKeyAuth): """ Set virtual key budget metrics - Remaining Budget - Max Budget - Budget Reset At """ enum_values = UserAPIKeyLabelValues( hashed_api_key=user_api_key_dict.token, api_key_alias=user_api_key_dict.key_alias or "", ) _labels = prometheus_label_factory( supported_enum_labels=self.get_labels_for_metric(metric_name="litellm_remaining_api_key_budget_metric"), enum_values=enum_values, ) self.litellm_remaining_api_key_budget_metric.labels(**_labels).set( self._safe_get_remaining_budget( max_budget=user_api_key_dict.max_budget, spend=user_api_key_dict.spend, ) ) if user_api_key_dict.max_budget is not None: _labels = prometheus_label_factory( supported_enum_labels=self.get_labels_for_metric(metric_name="litellm_api_key_max_budget_metric"), enum_values=enum_values, ) self.litellm_api_key_max_budget_metric.labels(**_labels).set(user_api_key_dict.max_budget) if user_api_key_dict.budget_reset_at is not None: self.litellm_api_key_budget_remaining_hours_metric.labels(**_labels).set( self._get_remaining_hours_for_budget_reset(budget_reset_at=user_api_key_dict.budget_reset_at) ) async def _set_api_key_budget_metrics_after_api_request( self, user_api_key: Optional[str], user_api_key_alias: Optional[str], response_cost: float, key_max_budget: Optional[float], key_spend: Optional[float], ): if isinstance(self.litellm_remaining_api_key_budget_metric, NoOpMetric): return if user_api_key: user_api_key_dict = await self._assemble_key_object( user_api_key=user_api_key, user_api_key_alias=user_api_key_alias or "", key_max_budget=key_max_budget, key_spend=key_spend, response_cost=response_cost, ) self._set_key_budget_metrics(user_api_key_dict) async def _assemble_key_object( self, user_api_key: str, user_api_key_alias: str, key_max_budget: Optional[float], key_spend: Optional[float], response_cost: float, ) -> UserAPIKeyAuth: """ Assemble a UserAPIKeyAuth object """ from litellm.proxy.auth.auth_checks import get_key_object from litellm.proxy.proxy_server import prisma_client, user_api_key_cache _total_key_spend = (key_spend or 0) + response_cost user_api_key_dict = UserAPIKeyAuth( token=user_api_key, key_alias=user_api_key_alias, max_budget=key_max_budget, spend=_total_key_spend, ) try: if user_api_key_dict.token: key_object = await get_key_object( hashed_token=user_api_key_dict.token, prisma_client=prisma_client, user_api_key_cache=user_api_key_cache, check_cache_only=True, ) if key_object: user_api_key_dict.budget_reset_at = key_object.budget_reset_at except Exception as e: verbose_logger.debug(f"[Non-Blocking] Prometheus: Error getting key info: {str(e)}") return user_api_key_dict async def _set_user_budget_metrics_after_api_request( self, user_id: Optional[str], user_spend: Optional[float], user_max_budget: Optional[float], response_cost: float, ): """ Set user budget metrics after an LLM API request - Assemble a LiteLLM_UserTable object - looks up user info from db if not available in metadata - Set user budget metrics """ if isinstance(self.litellm_remaining_user_budget_metric, NoOpMetric): return if user_id: user_object = await self._assemble_user_object( user_id=user_id, spend=user_spend, max_budget=user_max_budget, response_cost=response_cost, ) self._set_user_budget_metrics(user_object) async def _assemble_user_object( self, user_id: str, spend: Optional[float], max_budget: Optional[float], response_cost: float, ) -> LiteLLM_UserTable: """ Assemble a LiteLLM_UserTable object for fields not available in metadata, we fetch from db Fields not available in metadata: - `budget_reset_at` """ from litellm.proxy.auth.auth_checks import get_user_object from litellm.proxy.proxy_server import prisma_client, user_api_key_cache _total_user_spend = (spend or 0) + response_cost user_object = LiteLLM_UserTable( user_id=user_id, spend=_total_user_spend, max_budget=max_budget, ) try: # Note: Setting check_db_only=True bypasses cache and hits DB on every request, # causing huge latency increase and CPU spikes. Keep check_db_only=False. user_info = await get_user_object( user_id=user_id, prisma_client=prisma_client, user_api_key_cache=user_api_key_cache, user_id_upsert=False, check_db_only=False, ) except Exception as e: verbose_logger.debug(f"[Non-Blocking] Prometheus: Error getting user info: {str(e)}") return user_object if user_info: user_object.budget_reset_at = user_info.budget_reset_at if user_object.max_budget is None and user_info.max_budget is not None: user_object.max_budget = user_info.max_budget if user_info.user_email is not None: user_object.user_email = user_info.user_email if user_info.user_alias is not None: user_object.user_alias = user_info.user_alias return user_object def _set_user_budget_metrics( self, user: LiteLLM_UserTable, ): """ Set user budget metrics for a single user - Remaining Budget - Max Budget - Budget Reset At """ enum_values = UserAPIKeyLabelValues( user=user.user_id, user_email=user.user_email or "", user_alias=user.user_alias or "", ) _labels = prometheus_label_factory( supported_enum_labels=self.get_labels_for_metric(metric_name="litellm_remaining_user_budget_metric"), enum_values=enum_values, ) self.litellm_remaining_user_budget_metric.labels(**_labels).set( self._safe_get_remaining_budget( max_budget=user.max_budget, spend=user.spend, ) ) if user.max_budget is not None: _labels = prometheus_label_factory( supported_enum_labels=self.get_labels_for_metric(metric_name="litellm_user_max_budget_metric"), enum_values=enum_values, ) self.litellm_user_max_budget_metric.labels(**_labels).set(user.max_budget) if user.budget_reset_at is not None: _labels = prometheus_label_factory( supported_enum_labels=self.get_labels_for_metric( metric_name="litellm_user_budget_remaining_hours_metric" ), enum_values=enum_values, ) self.litellm_user_budget_remaining_hours_metric.labels(**_labels).set( self._get_remaining_hours_for_budget_reset(budget_reset_at=user.budget_reset_at) ) def _get_remaining_hours_for_budget_reset(self, budget_reset_at: datetime) -> float: """ Get remaining hours for budget reset """ return (budget_reset_at - datetime.now(budget_reset_at.tzinfo)).total_seconds() / 3600 def _safe_duration_seconds( self, start_time: Any, end_time: Any, ) -> Optional[float]: """ Compute the duration in seconds between two objects. Returns the duration as a float if both start and end are instances of datetime, otherwise returns None. """ if isinstance(start_time, datetime) and isinstance(end_time, datetime): return (end_time - start_time).total_seconds() return None @staticmethod def initialize_budget_metrics_cron_job(scheduler: AsyncIOScheduler): """ Initialize budget metrics as a cron job. This job runs every `PROMETHEUS_BUDGET_METRICS_REFRESH_INTERVAL_MINUTES` minutes. It emits the current remaining budget metrics for all Keys and Teams. """ from litellm.constants import PROMETHEUS_BUDGET_METRICS_REFRESH_INTERVAL_MINUTES prometheus_loggers: List[CustomLogger] = litellm.logging_callback_manager.get_custom_loggers_for_type( callback_type=PrometheusLogger ) # we need to get the initialized prometheus logger instance(s) and call logger.initialize_remaining_budget_metrics() on them verbose_logger.debug("found %s prometheus loggers", len(prometheus_loggers)) if len(prometheus_loggers) > 0: prometheus_logger = cast(PrometheusLogger, prometheus_loggers[0]) verbose_logger.debug( "Initializing remaining budget metrics as a cron job executing every %s minutes" % PROMETHEUS_BUDGET_METRICS_REFRESH_INTERVAL_MINUTES ) scheduler.add_job( prometheus_logger.initialize_remaining_budget_metrics, "interval", minutes=PROMETHEUS_BUDGET_METRICS_REFRESH_INTERVAL_MINUTES, # REMOVED jitter parameter - major cause of memory leak id="prometheus_budget_metrics_job", replace_existing=True, ) @staticmethod def _mount_metrics_endpoint(): """ Mount the Prometheus metrics endpoint with optional authentication. Args: require_auth (bool, optional): Whether to require authentication for the metrics endpoint. Defaults to False. """ from prometheus_client import make_asgi_app from litellm._logging import verbose_proxy_logger from litellm.proxy.proxy_server import app # Create metrics ASGI app if "PROMETHEUS_MULTIPROC_DIR" in os.environ: from prometheus_client import CollectorRegistry, multiprocess registry = CollectorRegistry() multiprocess.MultiProcessCollector(registry) metrics_app = make_asgi_app(registry) else: metrics_app = make_asgi_app() # Mount the metrics app to the app app.mount("/metrics", metrics_app) verbose_proxy_logger.debug("Starting Prometheus Metrics on /metrics (no authentication)") def _prometheus_labels_from_context( supported_enum_labels: List[str], ctx: PrometheusLabelFactoryContext, ) -> Dict[str, Optional[str]]: filtered_labels: Dict[str, Optional[str]] = { label: ctx._sanitized_enum[label] for label in supported_enum_labels if label in ctx._sanitized_enum } if UserAPIKeyLabelNames.END_USER.value in filtered_labels: filtered_labels[UserAPIKeyLabelNames.END_USER.value] = ctx.get_resolved_end_user() for sk, val in ctx._custom_by_sanitized_key.items(): if sk in supported_enum_labels: filtered_labels[sk] = val for k, v in ctx._tag_labels.items(): if k in supported_enum_labels: filtered_labels[k] = v for label in supported_enum_labels: if label not in filtered_labels: filtered_labels[label] = None return filtered_labels def prometheus_label_factory( supported_enum_labels: List[str], enum_values: UserAPIKeyLabelValues, tag: Optional[str] = None, *, label_context: Optional[PrometheusLabelFactoryContext] = None, ) -> dict: """ Returns a dictionary of label + values for prometheus. Ensures end_user param is not sent to prometheus if it is not supported. When ``label_context`` is provided, it must have been built from the same ``enum_values`` object; work is amortized (single model_dump, tag map, etc.). """ if label_context is not None: if label_context.enum_values is not enum_values: raise ValueError("label_context.enum_values must be the same object as enum_values") return _prometheus_labels_from_context(supported_enum_labels, label_context) # Extract dictionary from Pydantic object enum_dict = enum_values.model_dump() # Filter supported labels and sanitize values to prevent breaking # the Prometheus text format (e.g. U+2028 Line Separator in label values) filtered_labels = { label: _sanitize_prometheus_label_value(value) for label, value in enum_dict.items() if label in supported_enum_labels } if UserAPIKeyLabelNames.END_USER.value in filtered_labels: get_end_user_id_for_cost_tracking = _get_cached_end_user_id_for_cost_tracking() filtered_labels["end_user"] = get_end_user_id_for_cost_tracking( litellm_params={"user_api_key_end_user_id": enum_values.end_user}, service_type="prometheus", ) if enum_values.custom_metadata_labels is not None: for key, value in enum_values.custom_metadata_labels.items(): # check sanitized key sanitized_key = _sanitize_prometheus_label_name(key) if sanitized_key in supported_enum_labels: filtered_labels[sanitized_key] = _sanitize_prometheus_label_value(value) # Add custom tags if configured if enum_values.tags is not None: custom_tag_labels = get_custom_labels_from_tags(enum_values.tags) for key, value in custom_tag_labels.items(): if key in supported_enum_labels: filtered_labels[key] = _sanitize_prometheus_label_value(value) for label in supported_enum_labels: if label not in filtered_labels: filtered_labels[label] = None return filtered_labels def get_custom_labels_from_metadata(metadata: dict) -> Dict[str, str]: """ Get custom labels from metadata """ keys = litellm.custom_prometheus_metadata_labels if keys is None or len(keys) == 0: return {} result: Dict[str, str] = {} for key in keys: # Split the dot notation key into parts original_key = key key = key.replace("metadata.", "", 1) if key.startswith("metadata.") else key keys_parts = key.split(".") # Traverse through the dictionary using the parts value: Any = metadata for part in keys_parts: if isinstance(value, dict): value = value.get(part, None) # Get the value, return None if not found else: value = None if value is None: break if value is not None and isinstance(value, str): result[original_key.replace(".", "_")] = value return result def _get_combined_custom_metadata_from_standard_logging_payload( standard_logging_payload: Optional[dict], ) -> Dict[str, Any]: """ Combine the metadata sources that can supply custom Prometheus labels. Includes top-level scalar fields from the standard logging metadata (e.g. user_api_key_project_alias, user_api_key_team_alias) so they are accessible via custom_prometheus_metadata_labels configuration. """ if not isinstance(standard_logging_payload, dict): return {} standard_logging_metadata = standard_logging_payload.get("metadata") or {} if not isinstance(standard_logging_metadata, dict): return {} requester_metadata = standard_logging_metadata.get("requester_metadata") user_api_key_auth_metadata = standard_logging_metadata.get("user_api_key_auth_metadata") spend_logs_metadata = standard_logging_metadata.get("spend_logs_metadata") return { **{k: v for k, v in standard_logging_metadata.items() if not isinstance(v, dict)}, **(requester_metadata if isinstance(requester_metadata, dict) else {}), **(user_api_key_auth_metadata if isinstance(user_api_key_auth_metadata, dict) else {}), **(spend_logs_metadata if isinstance(spend_logs_metadata, dict) else {}), } def _tag_matches_wildcard_configured_pattern(tags: Sequence[str], configured_tag: str) -> bool: """ Check if any of the request tags matches a wildcard configured pattern Args: tags: List[str] - The request tags configured_tag: str - The configured tag Returns: bool - True if any of the request tags matches the configured tag, False otherwise e.g. tags = ["User-Agent: curl/7.68.0", "User-Agent: python-requests/2.28.1", "prod"] configured_tag = "User-Agent: curl/*" _tag_matches_wildcard_configured_pattern(tags=tags, configured_tag=configured_tag) # True configured_tag = "User-Agent: python-requests/*" _tag_matches_wildcard_configured_pattern(tags=tags, configured_tag=configured_tag) # True configured_tag = "gm" _tag_matches_wildcard_configured_pattern(tags=tags, configured_tag=configured_tag) # False """ import re from litellm.router_utils.pattern_match_deployments import PatternMatchRouter pattern_router = PatternMatchRouter() regex_pattern = pattern_router._pattern_to_regex(configured_tag) return any(re.match(pattern=regex_pattern, string=tag) for tag in tags) def get_custom_labels_from_tags(tags: Sequence[str]) -> Dict[str, str]: """ Get custom labels from tags based on admin configuration. Supports both exact matches and wildcard patterns: - Exact match: "prod" matches "prod" exactly - Wildcard pattern: "User-Agent: curl/*" matches "User-Agent: curl/7.68.0" Reuses PatternMatchRouter for wildcard pattern matching. Returns dict of label_name: "true" if the tag matches the configured tag, "false" otherwise { "tag_User-Agent_curl": "true", "tag_User-Agent_python_requests": "false", "tag_Environment_prod": "true", "tag_Environment_dev": "false", "tag_Service_api_gateway_v2": "true", "tag_Service_web_app_v1": "false", } """ from litellm.types.integrations.prometheus import _sanitize_prometheus_label_name configured_tags = litellm.custom_prometheus_tags if configured_tags is None or len(configured_tags) == 0: return {} result: Dict[str, str] = {} for configured_tag in configured_tags: label_name = _sanitize_prometheus_label_name(f"tag_{configured_tag}") # Check for exact match first (backwards compatibility) if configured_tag in tags: result[label_name] = "true" continue # Use PatternMatchRouter for wildcard pattern matching if "*" in configured_tag and _tag_matches_wildcard_configured_pattern(tags=tags, configured_tag=configured_tag): result[label_name] = "true" continue # No match found result[label_name] = "false" return result