[JIRA] [core] (JENKINS-23244) Slave build history page has no data and spawns a ton of very long-lived blocking threads on the master

Fri, 30 May 2014 08:17:57 -0700

Looking at the thread dump, the call stack indicates this call resulted in loading all the build records (via AbstractLazyLoadRunMap.all), which looks suspicious.
I'd think this operation would only require walking newer build records.

"Handling POST /computer/hadoop4/timeline/data/ : http-bio-8090-exec-895" Id=22685 Group=main RUNNABLE
	at java.io.UnixFileSystem.getBooleanAttributes0(Native Method)
	at java.io.UnixFileSystem.getBooleanAttributes(UnixFileSystem.java:242)
	at java.io.File.exists(File.java:813)
	at hudson.model.RunMap.retrieve(RunMap.java:219)
	at hudson.model.RunMap.retrieve(RunMap.java:59)
	at jenkins.model.lazy.AbstractLazyLoadRunMap.load(AbstractLazyLoadRunMap.java:687)
	-  locked hudson.model.RunMap@3fa6ce65
	at jenkins.model.lazy.AbstractLazyLoadRunMap.load(AbstractLazyLoadRunMap.java:649)
	-  locked hudson.model.RunMap@3fa6ce65
	at jenkins.model.lazy.AbstractLazyLoadRunMap.search(AbstractLazyLoadRunMap.java:381)
	at hudson.model.AbstractBuild.getPreviousBuild(AbstractBuild.java:219)
	at hudson.tasks.Fingerprinter$FingerprintAction.compact(Fingerprinter.java:360)
	at hudson.tasks.Fingerprinter$FingerprintAction.onLoad(Fingerprinter.java:349)
	at hudson.model.Run.onLoad(Run.java:337)
	at hudson.model.RunMap.retrieve(RunMap.java:223)
	at hudson.model.RunMap.retrieve(RunMap.java:59)
	at jenkins.model.lazy.AbstractLazyLoadRunMap.load(AbstractLazyLoadRunMap.java:687)
	at jenkins.model.lazy.AbstractLazyLoadRunMap.load(AbstractLazyLoadRunMap.java:670)
	at jenkins.model.lazy.AbstractLazyLoadRunMap.all(AbstractLazyLoadRunMap.java:622)
	-  locked hudson.model.RunMap@3fa6ce65
	at jenkins.model.lazy.AbstractLazyLoadRunMap.entrySet(AbstractLazyLoadRunMap.java:277)
	at java.util.AbstractMap$2$1.<init>(AbstractMap.java:378)
	at java.util.AbstractMap$2.iterator(AbstractMap.java:377)
	at hudson.util.RunList.iterator(RunList.java:97)
	at com.google.common.collect.Iterables$15.apply(Iterables.java:1128)
	at com.google.common.collect.Iterables$15.apply(Iterables.java:1125)
	at com.google.common.collect.Iterators$8.next(Iterators.java:812)
	at com.google.common.collect.Iterators$MergingIterator.<init>(Iterators.java:1306)
	at com.google.common.collect.Iterators.mergeSorted(Iterators.java:1274)
	at com.google.common.collect.Iterables$14.iterator(Iterables.java:1113)
	at com.google.common.collect.Iterables$UnmodifiableIterable.iterator(Iterables.java:94)
	at com.google.common.collect.Iterables$6.iterator(Iterables.java:585)
	at hudson.util.RunList$2.iterator(RunList.java:210)
	at hudson.util.RunList$2.iterator(RunList.java:210)
	at com.google.common.collect.Iterables$6.iterator(Iterables.java:585)
	at hudson.util.RunList.iterator(RunList.java:97)
	at hudson.model.BuildTimelineWidget.doData(BuildTimelineWidget.java:63)
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