Would be interesting to know what's the output of /threadDump when this is going on. 18 builds is much less than Jenkins should be able to handle.
> On 20.04.2016, at 06:45, dennys <[email protected]> wrote: > > We use 1 Jenkins and 30 Jenkins slaves. > (Jenkins master doesn't build code, only slaves build code.) > But when there are about 18 build jobs at the same time, Jenkins will hang > for a while. > > Jenkins master has 16 cores and the CPU loading is about 50% when the server > is hang. > The following is the JVM parameter, is there any suggestion for it? > > -Xms4096m > -Xmx4096m > -XX:MaxPermSize=800M > -XX:+UseParallelOldGC > -XX:+HeapDumpOnOutOfMemoryError > -Dorg.eclipse.jetty.server.Request.maxFormContentSize=5000000 > > > > -- > View this message in context: > http://jenkins-ci.361315.n4.nabble.com/How-many-jobs-can-handle-by-Jenkins-master-tp4808004.html > Sent from the Jenkins users mailing list archive at Nabble.com. > > -- > 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 [email protected]. > To view this discussion on the web visit > https://groups.google.com/d/msgid/jenkinsci-users/1461127511665-4808004.post%40n4.nabble.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 [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/jenkinsci-users/0BBF4DC8-9742-4B79-A912-C688057B7FF4%40beckweb.net. For more options, visit https://groups.google.com/d/optout.
