Hi Team, We upgraded our jenkins instance from 2.107.3 to 2.204.3 and sometimes we notice that jenkins master is taking lot of time to come up and jenkins UI/application is unresponsive.
I took a thread dump while we ran into this issue and noticed that application is suffering from deadlock. Thread jenkins.util.Timer [#1] is in deadlock with thread CpsStepContext.isReady [#6] jenkins.util.Timer [#1]priority:0x5 - threadId:0x00007F9C4C16EBE0 - nativeId:0x5AF5 - nativeId (decimal):23285 - state:BLOCKED stackTrace: at jenkins/model/lazy/AbstractLazyLoadRunMap.getByNumber( AbstractLazyLoadRunMap.java:370) at jenkins/model/lazy/LazyBuildMixIn.getBuildByNumber( LazyBuildMixIn.java:228) at org/jenkinsci/plugins/workflow/job/WorkflowJob.getBuildByNumber( WorkflowJob.java:232) at org/jenkinsci/plugins/workflow/job/WorkflowJob.getBuildByNumber( WorkflowJob.java:103) at hudson/model/Run.fromExternalizableId(Run.java:2446) at org/jenkinsci/plugins/workflow/support/steps/ExecutorStepExecution$PlaceholderTask.runForDisplay( ExecutorStepExecution.java:445) at org/jenkinsci/plugins/workflow/support/steps/ExecutorStepExecution$PlaceholderTask.getDisplayName( ExecutorStepExecution.java:461) at org/jenkinsci/plugins/jqsmonitoring/buildqueue/QueueJob.<init>( QueueJob.java:50) at org/jenkinsci/plugins/jqsmonitoring/buildqueue/BuildQueue.retrieveQueueJobs( BuildQueue.java:87) at org/jenkinsci/plugins/jqsmonitoring/buildqueue/BuildQueue.<init>( BuildQueue.java:36) at org/jenkinsci/plugins/jqsmonitoring/jqscore/JQSMonitoring.<init>( JQSMonitoring.java:43) at org/jenkinsci/plugins/jqsmonitoring/jqscore/JQSMonitoring$$FastClassByGuice$$a25d5b0d.newInstance( <generated>) at com/google/inject/internal/cglib/reflect/$FastConstructor.newInstance( FastConstructor.java:40) at com/google/inject/internal/DefaultConstructionProxyFactory$1.newInstance( DefaultConstructionProxyFactory.java:61) at com/google/inject/internal/ConstructorInjector.provision( ConstructorInjector.java:105) at com/google/inject/internal/ConstructorInjector.access$000( ConstructorInjector.java:32) at com/google/inject/internal/ConstructorInjector$1.call( ConstructorInjector.java:89) at com/google/inject/internal/ProvisionListenerStackCallback$Provision.provision( ProvisionListenerStackCallback.java:115) at hudson/ExtensionFinder$GuiceFinder$SezpozModule.onProvision(ExtensionFinder.java:567(Compiled Code)) at com/google/inject/internal/ProvisionListenerStackCallback$Provision.provision( ProvisionListenerStackCallback.java:126) at com/google/inject/internal/ProvisionListenerStackCallback.provision( Provision ####################### CpsStepContext.isReady [#6]priority:0x5 - threadId:0x00007F9C6802DE40 - nativeId:0x5B72 - nativeId (decimal):23410 - state:BLOCKED stackTrace: at org/jenkinsci/plugins/workflow/cps/CpsGroovyShell.doParse( CpsGroovyShell.java:133) at org/jenkinsci/plugins/workflow/cps/CpsGroovyShell.reparse( CpsGroovyShell.java:127) at org/jenkinsci/plugins/workflow/cps/CpsFlowExecution.parseScript( CpsFlowExecution.java:561) at org/jenkinsci/plugins/workflow/cps/CpsFlowExecution.loadProgramAsync( CpsFlowExecution.java:770) at org/jenkinsci/plugins/workflow/cps/CpsFlowExecution.onLoad( CpsFlowExecution.java:740) at org/jenkinsci/plugins/workflow/job/WorkflowRun.getExecution( WorkflowRun.java:672) at org/jenkinsci/plugins/workflow/job/WorkflowRun.onLoad( WorkflowRun.java:533) at hudson/model/RunMap.retrieve(RunMap.java:225) at hudson/model/RunMap.retrieve(RunMap.java:57) at jenkins/model/lazy/AbstractLazyLoadRunMap.load( AbstractLazyLoadRunMap.java:501) at jenkins/model/lazy/AbstractLazyLoadRunMap.load( AbstractLazyLoadRunMap.java:483) at jenkins/model/lazy/AbstractLazyLoadRunMap.getByNumber( AbstractLazyLoadRunMap.java:381) at hudson/model/RunMap.getById(RunMap.java:205) at org/jenkinsci/plugins/workflow/job/WorkflowRun$Owner.run( WorkflowRun.java:921) at org/jenkinsci/plugins/workflow/job/WorkflowRun$Owner.get( WorkflowRun.java:932) at org/jenkinsci/plugins/workflow/cps/CpsStepContext.getExecution( CpsStepContext.java:217) at org/jenkinsci/plugins/workflow/cps/CpsStepContext.getThreadGroupSynchronously( CpsStepContext.java:242) at org/jenkinsci/plugins/workflow/cps/CpsStepContext.access$000( CpsStepContext.java:97) at org/jenkinsci/plugins/workflow/cps/CpsStepContext$1.call( CpsStepContext.java:263) at org/jenkinsci/plugins/workflow/cps/CpsStepContext$1.call( CpsStepContext.java:261) at jenkins/util/ContextResettingExecutorService$2.call( ContextResettingExecutorService.java:46) at java/util/concurrent/FutureTask.run(FutureTask.java:277) at java/util/concurrent/ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1153(Compiled Code)) at java/util/concurrent/ThreadPoolExecutor$Worker.run( ThreadPoolExecutor.java:628) at java/lang/Thread.run(Thread.java:785) ############################# Any one ran into the same issue and any help on this is highly appreciated please. -- You received this message because you are subscribed to the Google Groups "Jenkins Users" group. 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