[JIRA] [core] (JENKINS-24376) Queue constantly locked when rapidly scheduling builds

[jgl...@cloudbees.com (JIRA)]

Jesse Glick created JENKINS-24376 Queue constantly locked when rapidly scheduling builds Issue Type: Bug Assignee: Unassigned Components: core Created: 21/Aug/14 3:31 PM Description: If there is a job that gets very rapidly scheduled, since a Run.id currently must be unique to the second, a lot of the time the Queue will be locked: ... waiting on condition [...] java.lang.Thread.State: TIMED_WAITING (sleeping) at java.lang.Thread.sleep(Native Method) at hudson.model.AbstractProject.newBuild(AbstractProject.java:1121) - locked <...> (a hudson.model.FreeStyleProject) at hudson.model.AbstractProject.createExecutable(AbstractProject.java:1349) at hudson.model.AbstractProject.createExecutable(AbstractProject.java:156) at hudson.model.Executor.run(Executor.java:211) - locked <...> (a hudson.model.Queue) which can prevent other things from happening, such as routine queue maintenance, or even rendering of the queue widget (which expects a fresh snapshot every second): "Handling ..." ... waiting for monitor entry [...] java.lang.Thread.State: BLOCKED (on object monitor) at hudson.model.Queue.getItems(Queue.java:685) - waiting to lock <...> (a hudson.model.Queue) at hudson.model.Queue$CachedItemList.get(Queue.java:217) at hudson.model.Queue.getApproximateItemsQuickly(Queue.java:715) at hudson.model.View.getApproximateQueueItemsQuickly(View.java:483) (This also artificially slows down some functional tests.) Project: Jenkins Labels: performance queue Priority: Major Reporter: Jesse Glick

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