Are you on Linux and are you using the embedded container? If so have you upped the number of file descriptors available from Jenkins – I have see in the past that is was not uncommon for the HTTP receiving thread to die due to not being able to handle a connection correctly.
Otherwise – jstack will likely be your friend – will show any deadlocks and show what threads are running. /james From: jenkinsci-users@googlegroups.com [mailto:jenkinsci-users@googlegroups.com] On Behalf Of Rupali Chorghe Sent: 21 October 2014 04:11 To: jenkinsci-users@googlegroups.com Subject: RE: Jenkins become unresponsive Hi Terrence, Thanks for reply. Problem we are facing is when Jenkins becomes unresponsive, everything that needs Jenkins URL, becomes inaccessible. So we decided to use Jconsole. But we didn't find abnormalities in CPU and memory usage when monitored using jconsole. Regards, Rupali On 21-Oct-2014 2:49 am, "Dunnigan, Terrence J" <terrence.j.dunni...@boeing.com<mailto:terrence.j.dunni...@boeing.com>> wrote: Are you using the Jenkins Monitoring plugin? https://wiki.jenkins-ci.org/display/JENKINS/Monitoring It might help to provide some context and additional information when Jenkins is not responding. Terry From: jenkinsci-users@googlegroups.com<mailto:jenkinsci-users@googlegroups.com> [mailto:jenkinsci-users@googlegroups.com<mailto:jenkinsci-users@googlegroups.com>] On Behalf Of Rupali Sent: Monday, October 20, 2014 6:46 AM To: jenkinsci-users@googlegroups.com<mailto:jenkinsci-users@googlegroups.com> Subject: Jenkins become unresponsive Hi, We are facing one weird issue. Intermittently, our Jenkins URL becomes inaccessible. Only restarting Jenkins service resolves the issue. We are using Jenkins 1.565. We tried to analyses memory and CPU usage when such state appears. But CPU usage looked very low around 2% and memory usage by Jenkins Java process also was around 1.7 GB which is the case usually. We have Master-Slave setup containing 8 slave machines of which 2 slaves have dedicated jobs to run. Can you advise on how to analyze this issue to find out the root cause of Jenkins becoming inaccessible? Regards, Rupali -- You received this message because you are subscribed to the Google Groups "Jenkins Users" group. To unsubscribe from this group and stop receiving emails from it, send an email to jenkinsci-users+unsubscr...@googlegroups.com<mailto:jenkinsci-users+unsubscr...@googlegroups.com>. For more options, visit https://groups.google.com/d/optout. -- You received this message because you are subscribed to a topic in the Google Groups "Jenkins Users" group. To unsubscribe from this topic, visit https://groups.google.com/d/topic/jenkinsci-users/FLJye7YDTr8/unsubscribe. To unsubscribe from this group and all its topics, send an email to jenkinsci-users+unsubscr...@googlegroups.com<mailto:jenkinsci-users+unsubscr...@googlegroups.com>. For more options, visit https://groups.google.com/d/optout. -- You received this message because you are subscribed to the Google Groups "Jenkins Users" group. To unsubscribe from this group and stop receiving emails from it, send an email to jenkinsci-users+unsubscr...@googlegroups.com<mailto:jenkinsci-users+unsubscr...@googlegroups.com>. For more options, visit https://groups.google.com/d/optout. -- You received this message because you are subscribed to the Google Groups "Jenkins Users" group. To unsubscribe from this group and stop receiving emails from it, send an email to jenkinsci-users+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
