[JIRA] (JENKINS-58573) 100% CPU remoting.jar or slave.jar on EC2 (connection refused)

[gun...@grodotzki.co.za (JIRA)]

Title: Message Title

Gunter Grodotzki created an issue   Jenkins / JENKINS-58573 100% CPU remoting.jar or slave.jar on EC2 (connection refused) Issue Type: Bug Assignee: FABRIZIO MANFREDI Components: ec2-plugin, remoting Created: 2019-07-19 15:12 Environment: Jenkins 2.176.2 ec2 1.44.1 Priority: Blocker Reporter: Gunter Grodotzki Jenkins EC2 nodes are constantly crashing with 100% cpu usage:   java.util.concurrent.TimeoutException: Ping started at 1563548484233 hasn't completed by 1563548724233 {{ at hudson.remoting.PingThread.ping(PingThread.java:134)}} {{ at hudson.remoting.PingThread.run(PingThread.java:90)}}   I tried both using "native ssh" and via jenkins-ssh and both have the same issue. It looks like the remoting.jar is hung up:   JvmTop 0.8.0 alpha - 14:58:59, amd64, 4 cpus, Linux 4.9.0-9-a, load avg 7.89 {{ http://code.google.com/p/jvmtop}}PID MAIN-CLASS HPCUR HPMAX NHCUR NHMAX CPU GC VM USERNAME #T DL {{ 4093 m.jvmtop.JvmTop 21m 1698m 18m n/a 0.50% 0.00% O8U21 root 12 }} {{ 3973 remoting.jar [ERROR: Connection refused/access denied] }} {{ 6406 remoting.jar [ERROR: Connection refused/access denied] }}   Not sure how to further debug this. Add Comment   This message was sent by Atlassian Jira (v7.11.2#711002-sha1:fdc329d) -- You received this message because you are subscribed to the Google Groups "Jenkins Issues" group. To unsubscribe from this group and stop receiving emails from it, send an email to jenkinsci-issues+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/jenkinsci-issues/JIRA.200725.1563549166000.16705.1563549180318%40Atlassian.JIRA. For more options, visit https://groups.google.com/d/optout.