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# jvm-mon

Console based JVM monitoring - when you just want to SSH into a server and see what's going on.

jvm-mon lets you monitor your JVM server applications from the terminal. 

![Screenshot](https://raw.githubusercontent.com/ajermakovics/jvm-mon/pages/site/jvm-mon.png)

# New Version

Release: [1.3](https://github.com/ajermakovics/jvm-mon/releases/tag/1.3)
- Rewritten in Go 
- Single executable file
- Can monitor applications on Java 8 and above
- Does not require an existing JDK

How it works:
 - jvm-mon executable comes bundled with a Java agent jar
 - On startup it extracts the agent to a temp directory
 - It attaches to the JVM you want to monitor
 - Loads agent into running JVM to collect metrics
 - Agent and app establish a socket connection to send metrics

# Install

Download from [latest release](https://github.com/ajermakovics/jvm-mon/releases)

### macOS

```
brew install jvm-mon
```

# Usage

- Select a JVM process and press <kbd>Enter</kbd> to monitor it
- Press <kbd>q</kbd> or <kbd>Ctrl+C</kbd> to exit
- Press <kbd>Del</kbd> or <kbd>Backspace</kbd> to kill a process

# What is available

Currently it shows:
- List of running JVM processes
- Cpu and GC load
- Heap size and usage
- Top threads with cpu usage

# Building from source

See the [readme](jvm-mon-go/README.md)