How to collect a thread dump

Thread dumps show what operations Stardog is performing at the time they're collected. They're very useful for troubleshooting a very slow or unresponsive server. Make sure to collect them while you're experiencing that slowness/unresponsiveness - if you collect it while the server is idle, it will contain no useful information.

There are two ways to collect a thread dump:

1. Run stardog-admin server metrics --threads "jvm.threads"
2. Use jstack.
   1. In your new terminal window, run ps aux | grep stardog to find Stardog's PID (process ID).
   2. Collect the thread dump with jstack -l <PID> > thread-dump.txt, replacing "<PID>" with the process ID you found in the previous step.

Once you've collected your thread dump, create a support ticket and attach the thread dump to it.