Finally find the problem. Seem like my mount drive under Linux was under heavy usage (the polling was occurring at the same time the IT was doing big backup) and therefor the Master Disk IO could not follow to write the jobs and the RAM vm.dirty_ was flooded. Making the build to hang.
So I changed the polling cron to avoid the conflict, but still a little weird that it doesn't suspend the slave until it can recover. So if the salve can flood the master disk IO the build hang and never recover. -- 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. To view this discussion on the web visit https://groups.google.com/d/msgid/jenkinsci-users/3d16e7e7-3dee-4e6c-b71a-e1ef55df31fd%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
