How to Get Heap Dump Without JDK Installed

CONTENTS

You are unable to use the Support Collector Tool (Support information collector) to grab the heap dump for some reason, or you may not have the Java JDK installed. Here is another way to get a heap dump.

STEPS TO FOLLOW

1. Go to the following open source project, jattach, and download the binary script from the release page: link 

2. Download the binary for your platform running the Mule runtime. For Windows 64 bit, choose jattach.exe.

3. To run this file, go to the directory of the file and use the following commands:

Linux:

# Preferred way of finding PID of Mule runtime:
jps -v

# Alternative way to find the PID of Mule runtime process
ps -ef | grep -i mule 

# Run the following and replace <PID> with PID from above commands
chmod +x jattach; ./jattach <PID> dumpheap /tmp/heap-dump.jmap

# Preferred way of finding PID of Mule runtime:
jps -v

# Alternative way to find the PID of Mule runtime process
ps -ef | grep -i mule 

# Run the following and replace <PID> with PID from above commands
chmod +x jattach-macos; ./jattach-macos <PID> dumpheap /tmp/heap-dump.jmap

# Run the following and replace <PID> with PID from above steps
jattach.exe <PID> dumpheap C:\heap-dump.jmap