ref) https://wiki.jenkins.io/display/JENKINS/Remoting+issue

description:

we setup jenkins master and several agents. one of agents periodically deadlocked and cpu spiked. I found It because SynchronousCommandTransport$ReaderThread.run from remoting.jar. (ref: https://wiki.jenkins.io/display/JENKINS/Remoting+issue)

I added some screenshots. I really appreciate if you take a look and help us to find root cause.

agent server stats:

cpu usage:

tracking PID 15699: ( It was remoting.jar )

agentthread dump:  

Thanks!