Red Hat Bugzilla – Bug 837001
Watchman: java defunct process causes high load
Last modified: 2015-05-14 18:56:10 EDT
Description of problem:
We have a lingering problem where a java process will go defunct and cause a server to have high load. This in turn causes httpd to slow as the server's performance degrades.
Version-Release number of selected component (if applicable):
This java defunct process happens pretty often.
Steps to Reproduce:
1. Wait for a java process to go defunct
2. Login to monitor the process
Java defunct process causes the server to have high load which in turn brings down the performance of the box.
Watchman detects the process is defunct.
Watchman kills the selected user's apps with killall -9 -u <uuid>
Watchman restarts the user's app
Nobody loses any sleep and applications play nicely together.
US2523: Enhance Watchman to monitor process table for defunct java processes