On Wed, Aug 1, 2012 at 11:17 AM, Vojtech Juranek <vjura...@redhat.com> wrote: > Looks like you it does search for user's email: > hudson.scm.SubversionMailAddressResolverImpl.findMailAddressFor > and spends time parsing changelogs: > hudson.scm.SubversionChangeLogParser.parse > > I guess you have quite large instance, otherwise this operation would be quite > fast. > If you have some job, which has set up option to send an email to devs who > broke the build, if the user hasn't specified an email, Jenkins tries to find > it > e.g. in git or SVN changelogs and search all projects and builds so if you > have large instance with several dozen thousands of builds if can take pretty > long time. > > You can fix it by setting up correct email for the user. > If you have installed git plugin, make sure you have 1.1.16 (I hope it was > fixed in this version) or higher. Git plugin made this search even if the user > has set up email correctly
So, if I understand right, jenkins is looking for email addresses, so I need to make sure that every user that registers has a valid address? > > On Wednesday 01 August 2012 10:56:43 Andrew Melo wrote: >> On Wed, Aug 1, 2012 at 10:36 AM, Vojtech Juranek <vjura...@redhat.com> > wrote: >> > On Wednesday 01 August 2012 10:07:15 Andrew Melo wrote: >> >> On Wed, Aug 1, 2012 at 9:48 AM, Vojtech Juranek <vjura...@redhat.com> > wrote: >> >> > quick way how to look what the thread consuming CPU is doing is to do >> >> > thread dump (e.g. using jstack $PID) and use top with threads on (H >> >> > option) and then look up, see e.g. >> >> > http://code.nomad-labs.com/2010/11/18/identifying-which-java-thread-is- >> >> > consuming-most-cpu/ >> >> >> >> I see. I apparently don't have jstack on this machine :/. Does it only >> >> come with the JDK, or can I find it somewhere on the JRE? Once I find >> >> the offending thread, should it be pretty obvious what it does? >> > >> > jstack is part of JDK >> > >> > you can see the stack trace via Jenkins UI navigating to >> > $JENKINS_URL/threadDump but not sure if your (or any) Jenkins version >> > provides thread IDs. >> > >> > >> > Once you identify the offending thread, it should be obvious what it does >> > (but it may not be obvious why it does what it does:-) >> >> Okay, I installed the jdk, and I looked some more. >> >> Using top, I see one jenkins thread taking the lionsshare of the time: >> >> PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND >> 24580 jenkins 25 0 3246m 743m 18m R 88.6 24.7 790:53.39 java >> 24591 jenkins 15 0 3246m 743m 18m S 0.0 24.7 40:14.51 java >> 25163 jenkins 15 0 3246m 743m 18m S 0.0 24.7 28:21.42 java >> 24601 jenkins 15 0 3246m 743m 18m S 0.0 24.7 27:24.95 java >> 24581 jenkins 15 0 3246m 743m 18m S 0.0 24.7 26:39.58 java >> 24589 jenkins 18 0 3246m 743m 18m S 0.2 24.7 24:41.60 java >> 24604 jenkins 15 0 3246m 743m 18m S 0.0 24.7 23:47.46 java >> 24603 jenkins 15 0 3246m 743m 18m S 0.6 24.7 17:05.23 java >> 24484 jenkins 15 0 3246m 743m 18m S 0.4 24.7 14:45.39 java >> 24612 jenkins 18 0 3246m 743m 18m S 0.0 24.7 11:50.45 java >> 24610 jenkins 15 0 3246m 743m 18m S 0.0 24.7 10:34.41 java >> 24564 jenkins 15 0 3246m 743m 18m S 0.0 24.7 8:56.60 java >> 24602 jenkins 15 0 3246m 743m 18m S 0.0 24.7 8:30.98 java >> 24565 jenkins 16 0 3246m 743m 18m S 11.5 24.7 8:22.85 java >> 24609 jenkins 15 0 3246m 743m 18m S 0.0 24.7 8:12.30 java >> 24582 jenkins 15 0 3246m 743m 18m S 0.6 24.7 3:48.67 java >> 24590 jenkins 15 0 3246m 743m 18m S 0.0 24.7 3:24.27 java >> 24579 jenkins 15 0 3246m 743m 18m S 0.0 24.7 3:22.16 java >> 24486 jenkins 15 0 3246m 743m 18m S 0.0 24.7 2:33.77 java >> 24973 jenkins 15 0 3246m 743m 18m S 0.0 24.7 2:18.32 java >> 24983 jenkins 15 0 3246m 743m 18m S 0.0 24.7 2:07.91 java >> 24838 jenkins 15 0 3246m 743m 18m S 0.0 24.7 1:38.35 java >> 24845 jenkins 15 0 3246m 743m 18m S 0.0 24.7 1:32.56 java >> 25037 jenkins 15 0 3246m 743m 18m S 0.0 24.7 1:16.63 java >> 25038 jenkins 15 0 3246m 743m 18m S 0.0 24.7 1:07.00 java >> 24491 jenkins 15 0 3246m 743m 18m S 0.0 24.7 1:05.38 java >> 24611 jenkins 15 0 3246m 743m 18m S 0.0 24.7 1:02.82 java >> 24488 jenkins 15 0 3246m 743m 18m S 0.0 24.7 1:00.30 java >> >> >> Then if I run jstack, I get the following backtrace: >> >> https://gist.github.com/3228105 >> >> Does that look useful at all? >> >> Thanks, >> Andrew -- -- Andrew Melo
