-
Improvement
-
Resolution: Fixed
-
Minor
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None
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-
workflow-api-plugin-2.46
Some race condition could happen in StandardGraphLookUpView when accessing the
blockStartToEnd
and
nearestEnclosingBlock
maps, leading to a high CPU usage and blocking threads.
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND 32499 abcde 20 0 23.8g 18g 12m S **790.4** 30.0 7308:41 /xenv/java/X/1.8.0_261l64/bin/java -Xms16384m -Xmx16384m -verbose:gc -Xloggc:/BuildDir/XXX/logs/gc-%t.log -XX:NumberOfGCLogFiles=2 -XX:+UseGCLogFileRotation -XX:GCLogFileSize=100m -XX:+PrintGC -XX:+PrintGCDateStamps -XX:+PrintGCD
High CPU consuming threads:
"Running ..." #1403846 daemon prio=5 os_prio=0 tid=0x00007f00581ef800 nid=0x1133 runnable [0x00007f00050ef000] java.lang.Thread.State: RUNNABLE at org.jenkinsci.plugins.workflow.graph.StandardGraphLookupView.bruteForceScanForEnclosingBlock(StandardGraphLookupView.java:133) at org.jenkinsci.plugins.workflow.graph.StandardGraphLookupView.findEnclosingBlockStart(StandardGraphLookupView.java:194) at org.jenkinsci.plugins.workflow.graph.GraphLookupView$EnclosingBlocksIterable$EnclosingBlocksIterator.<init>(GraphLookupView.java:66) at org.jenkinsci.plugins.workflow.graph.GraphLookupView$EnclosingBlocksIterable.iterator(GraphLookupView.java:100) at org.jenkinsci.plugins.workflow.job.console.NewNodeConsoleNote.<init>(NewNodeConsoleNote.java:94) at org.jenkinsci.plugins.workflow.job.console.NewNodeConsoleNote.print(NewNodeConsoleNote.java:76) - locked <0x00000005d9e3b650> (a java.io.PrintStream) at org.jenkinsci.plugins.workflow.job.WorkflowRun$NodePrintListener.onNewHead(WorkflowRun.java:1051) at org.jenkinsci.plugins.workflow.cps.CpsFlowExecution.notifyListeners(CpsFlowExecution.java:1473) at org.jenkinsci.plugins.workflow.cps.CpsThreadGroup.notifyNewHead(CpsThreadGroup.java:472) at org.jenkinsci.plugins.workflow.cps.FlowHead.setNewHead(FlowHead.java:157) at org.jenkinsci.plugins.workflow.cps.DSL.invokeStep(DSL.java:254)
and
"Handling GET ...." #11819 prio=5 os_prio=0 tid=0x00007f01181f0800 nid=0x6d0a runnable [0x00007f0008d25000] java.lang.Thread.State: RUNNABLE at java.util.HashMap.hash(HashMap.java:339) at java.util.HashMap.get(HashMap.java:557) at org.jenkinsci.plugins.workflow.graph.StandardGraphLookupView.bruteForceScanForEnclosingBlock(StandardGraphLookupView.java:133) at org.jenkinsci.plugins.workflow.graph.StandardGraphLookupView.findEnclosingBlockStart(StandardGraphLookupView.java:194) at org.jenkinsci.plugins.workflow.graph.GraphLookupView$EnclosingBlocksIterable$EnclosingBlocksIterator.<init>(GraphLookupView.java:66) at org.jenkinsci.plugins.workflow.graph.GraphLookupView$EnclosingBlocksIterable.iterator(GraphLookupView.java:100) at org.jenkinsci.plugins.workflow.support.steps.ExecutorStepExecution$PlaceholderTask.computeEnclosingLabel(ExecutorStepExecution.java:642) at org.jenkinsci.plugins.workflow.support.steps.ExecutorStepExecution$PlaceholderTask.getEnclosingLabel(ExecutorStepExecution.java:633) at sun.reflect.GeneratedMethodAccessor1421.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498)
- causes
-
JENKINS-65885 Deadlock in CpsFlowExecution
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- Closed
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- links to