Details

    • Steps to Reproduce:
      Hide
      docker run -it --rm -p 8080:8080 -p 9990:9990 jboss/keycloak:6.0.1 -Djboss.bind.address.management=0.0.0.0 -b 0.0.0.0
      

      Make a lot requests to :9990/metrics

      Show
      docker run -it --rm -p 8080:8080 -p 9990:9990 jboss/keycloak:6.0.1 -Djboss.bind.address.management=0.0.0.0 -b 0.0.0.0 Make a lot requests to :9990/metrics

      Description

      I noticed there seems to be a memory leak when calling the /metrics endpoint (with Prometheus). I don't know if this relates to the Keycloak metrics or the general Wildfly base metrics.

      Every request to /metrics seems to consume some more heap memory until a OOME occurs. No other requests are done.

      If the metrics endpoint isn't used at all the server works fine.

      15:14:50,951 ERROR [org.jboss.as.controller.management-operation] (DeploymentScanner-threads - 1) WFLYCTL0013: Operation ("read-attribute") failed - address: ([("deployment" => "keycloak-server.war")]): java.lang.OutOfMemoryError: GC overhead limit exceeded
              at java.util.HashMap.resize(HashMap.java:704)
              at java.util.HashMap.putVal(HashMap.java:629)
              at java.util.HashMap.put(HashMap.java:612)
              at java.util.HashSet.add(HashSet.java:220)
              at org.jboss.as.controller.PathAddress.pathAddress(PathAddress.java:95)
              at org.jboss.as.controller.AbstractOperationContext$OperationId.<init>(AbstractOperationContext.java:1571)
              at org.jboss.as.controller.OperationContextImpl.authorize(OperationContextImpl.java:1326)
              at org.jboss.as.controller.OperationContextImpl.authorize(OperationContextImpl.java:1321)
              at org.jboss.as.controller.operations.global.ReadAttributeHandler$AuthorizeAttributeReadHandler.doExecuteInternal(ReadAttributeHandler.java:244)
              at org.jboss.as.controller.operations.global.ReadAttributeHandler$AuthorizeAttributeReadHandler.execute(ReadAttributeHandler.java:229)
              at org.jboss.as.controller.AbstractOperationContext.executeStep(AbstractOperationContext.java:999)
              at org.jboss.as.controller.AbstractOperationContext.processStages(AbstractOperationContext.java:743)
              at org.jboss.as.controller.AbstractOperationContext.executeOperation(AbstractOperationContext.java:467)
              at org.jboss.as.controller.OperationContextImpl.executeOperation(OperationContextImpl.java:1412)
              at org.jboss.as.controller.ModelControllerImpl.internalExecute(ModelControllerImpl.java:423)
              at org.jboss.as.controller.ModelControllerImpl.lambda$execute$1(ModelControllerImpl.java:243)
              at org.jboss.as.controller.ModelControllerImpl$$Lambda$553/974545249.run(Unknown Source)
              at org.wildfly.security.auth.server.SecurityIdentity$$Lambda$554/2003274744.run(Unknown Source)
              at org.wildfly.security.auth.server.SecurityIdentity.runAs(SecurityIdentity.java:289)
              at org.wildfly.security.auth.server.SecurityIdentity.runAs(SecurityIdentity.java:255)
              at org.jboss.as.controller.ModelControllerImpl.execute(ModelControllerImpl.java:243)
              at org.jboss.as.controller.ModelControllerClientFactoryImpl$LocalClient$$Lambda$552/516471669.apply(Unknown Source)
              at org.jboss.as.controller.ModelControllerClientFactoryImpl$LocalClient.executeInModelControllerCl(ModelControllerClientFactoryImpl.java:259)
              at org.jboss.as.controller.ModelControllerClientFactoryImpl$LocalClient.executeOperation(ModelControllerClientFactoryImpl.java:157)
              at org.jboss.as.controller.ModelControllerClientFactoryImpl$1$$Lambda$546/98454422.apply(Unknown Source)
              at org.jboss.as.controller.ModelControllerClientFactoryImpl.lambda$executeInVm$0(ModelControllerClientFactoryImpl.java:351)
              at org.jboss.as.controller.ModelControllerClientFactoryImpl$$Lambda$550/226565561.run(Unknown Source)
              at org.jboss.as.controller.access.InVmAccess.runInVm(InVmAccess.java:85)
              at org.jboss.as.controller.ModelControllerClientFactoryImpl.executeInVm(ModelControllerClientFactoryImpl.java:351)
              at org.jboss.as.controller.ModelControllerClientFactoryImpl.access$000(ModelControllerClientFactoryImpl.java:59)
              at org.jboss.as.controller.ModelControllerClientFactoryImpl$1.executeOperation(ModelControllerClientFactoryImpl.java:82)
              at org.jboss.as.controller.LocalModelControllerClient.execute(LocalModelControllerClient.java:54)
      
      15:14:50,955 ERROR [org.jboss.as.server.deployment.scanner] (DeploymentScanner-threads - 1) WFLYDS0012: Scan of /opt/jboss/keycloak/standalone/deployments threw Exception: java.lang.RuntimeException: WFLYDS0036: Deployment model operation failed. undefined
              at org.jboss.as.server.deployment.scanner.DefaultDeploymentOperations.getUnrelatedDeployments(DefaultDeploymentOperations.java:109)
              at org.jboss.as.server.deployment.scanner.FileSystemDeploymentService$ScanContext.<init>(FileSystemDeploymentService.java:1692)
              at org.jboss.as.server.deployment.scanner.FileSystemDeploymentService$ScanContext.<init>(FileSystemDeploymentService.java:1640)
              at org.jboss.as.server.deployment.scanner.FileSystemDeploymentService.scan(FileSystemDeploymentService.java:589)
              at org.jboss.as.server.deployment.scanner.FileSystemDeploymentService.scan(FileSystemDeploymentService.java:493)
              at org.jboss.as.server.deployment.scanner.FileSystemDeploymentService$DeploymentScanRunnable.run(FileSystemDeploymentService.java:255)
              at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
              at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:308)
              at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180)
              at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294)
              at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
              at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
              at java.lang.Thread.run(Thread.java:748)
              at org.jboss.threads.JBossThread.run(JBossThread.java:485)
      
      15:14:52,319 ERROR [org.jboss.as.controller.management-operation] (management I/O-1) WFLYCTL0013: Operation ("read-attribute") failed - address: ([
          ("subsystem" => "jgroups"),
          ("channel" => "ee"),
          ("protocol" => "pbcast.NAKACK2")
      ]): java.lang.OutOfMemoryError: GC overhead limit exceeded
              at sun.reflect.generics.parser.SignatureParser.parsePackageNameAndSimpleClassTypeSignature(SignatureParser.java:331)
              at sun.reflect.generics.parser.SignatureParser.parseClassTypeSignature(SignatureParser.java:310)
              at sun.reflect.generics.parser.SignatureParser.parseFieldTypeSignature(SignatureParser.java:289)
              at sun.reflect.generics.parser.SignatureParser.parseFieldTypeSignature(SignatureParser.java:283)
              at sun.reflect.generics.parser.SignatureParser.parseTypeSignature(SignatureParser.java:485)
              at sun.reflect.generics.parser.SignatureParser.parseTypeSig(SignatureParser.java:188)
              at sun.reflect.annotation.AnnotationParser.parseSig(AnnotationParser.java:436)
              at sun.reflect.annotation.AnnotationParser.parseAnnotation2(AnnotationParser.java:241)
              at sun.reflect.annotation.AnnotationParser.parseAnnotations2(AnnotationParser.java:120)
              at sun.reflect.annotation.AnnotationParser.parseAnnotations(AnnotationParser.java:72)
              at java.lang.reflect.Field.declaredAnnotations(Field.java:1150)
              at java.lang.reflect.Field.declaredAnnotations(Field.java:1148)
              at java.lang.reflect.Field.getAnnotation(Field.java:1120)
              at org.jgroups.stack.Configurator.resolveAndAssignField(Configurator.java:926)
              at org.jgroups.stack.Configurator.resolveAndAssignFields(Configurator.java:921)
              at org.jgroups.stack.Protocol.setProperties(Protocol.java:133)
              at org.jboss.as.clustering.jgroups.subsystem.AbstractProtocolConfigurationServiceConfigurator.lambda$createProtocol$0(AbstractProtocolConfigurationServiceConfigurator.java:119)
              at org.jboss.as.clustering.jgroups.subsystem.AbstractProtocolConfigurationServiceConfigurator$$Lambda$590/1559509553.run(Unknown Source)
              at org.wildfly.security.manager.WildFlySecurityManager.doUnchecked(WildFlySecurityManager.java:849)
              at org.jboss.as.clustering.jgroups.subsystem.AbstractProtocolConfigurationServiceConfigurator.createProtocol(AbstractProtocolConfigurationServiceConfigurator.java:125)
              at org.jboss.as.clustering.jgroups.subsystem.ChannelRuntimeResourceRegistration.findProtocol(ChannelRuntimeResourceRegistration.java:87)
              at org.jboss.as.clustering.jgroups.subsystem.ProtocolMetricsHandler.executeRuntimeStep(ProtocolMetricsHandler.java:244)
              at org.jboss.as.controller.AbstractRuntimeOnlyHandler$1.execute(AbstractRuntimeOnlyHandler.java:59)
              at org.jboss.as.controller.AbstractOperationContext.executeStep(AbstractOperationContext.java:999)
              at org.jboss.as.controller.AbstractOperationContext.processStages(AbstractOperationContext.java:743)
              at org.jboss.as.controller.AbstractOperationContext.executeOperation(AbstractOperationContext.java:467)
              at org.jboss.as.controller.OperationContextImpl.executeOperation(OperationContextImpl.java:1412)
              at org.jboss.as.controller.ModelControllerImpl.internalExecute(ModelControllerImpl.java:423)
              at org.jboss.as.controller.ModelControllerImpl.lambda$execute$1(ModelControllerImpl.java:243)
              at org.jboss.as.controller.ModelControllerImpl$$Lambda$553/974545249.run(Unknown Source)
              at org.wildfly.security.auth.server.SecurityIdentity$$Lambda$554/2003274744.run(Unknown Source)
              at org.wildfly.security.auth.server.SecurityIdentity.runAs(SecurityIdentity.java:289)
      
      15:14:52,322 ERROR [io.undertow.request] (management I/O-1) UT005071: Undertow request failed HttpServerExchange{ GET /metrics request {Accept=[text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8], Connection=[keep-alive], Accept-Language=[de,en-US;q=0.7,en;q=0.3], Cache-Control=[max-age=0], Accept-Encoding=[gzip, deflate], User-Agent=[Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:68.0) Gecko/20100101 Firefox/68.0], Upgrade-Insecure-Requests=[1], Host=[192.168.99.100:9990]} response {Access-Control-Allow-Origin=[*], Access-Control-Allow-Headers=[origin, content-type, accept, authorization], Access-Control-Allow-Credentials=[true], Content-Type=[text/plain], Access-Control-Allow-Methods=[GET, POST, PUT, DELETE, OPTIONS, HEAD], Access-Control-Max-Age=[1209600]}}: java.lang.IllegalStateException: WFLYMETRICS0003: Unable to read attribute xmit_table_num_purges on [
          ("subsystem" => "jgroups"),
          ("channel" => "ee"),
          ("protocol" => "pbcast.NAKACK2")
      ]: "WFLYCTL0158: Operation handler failed: java.lang.OutOfMemoryError: GC overhead limit exceeded".
              at org.wildfly.extension.microprofile.metrics.MetricCollector.lambda$collectResourceMetrics0$0(MetricCollector.java:143)
              at org.wildfly.extension.microprofile.metrics.PrometheusCollector.collect(PrometheusCollector.java:51)
              at io.prometheus.client.CollectorRegistry$MetricFamilySamplesEnumeration.findNextElement(CollectorRegistry.java:183)
              at io.prometheus.client.CollectorRegistry$MetricFamilySamplesEnumeration.<init>(CollectorRegistry.java:147)
              at io.prometheus.client.CollectorRegistry$MetricFamilySamplesEnumeration.<init>(CollectorRegistry.java:168)
              at io.prometheus.client.CollectorRegistry.metricFamilySamples(CollectorRegistry.java:130)
              at org.wildfly.extension.microprofile.metrics.MetricsContextService$1.handleRequest(MetricsContextService.java:100)
              at org.jboss.as.domain.http.server.security.RealmReadinessHandler.handleRequest(RealmReadinessHandler.java:51)
              at org.jboss.as.domain.http.server.security.ServerErrorReadinessHandler.handleRequest(ServerErrorReadinessHandler.java:35)
              at io.undertow.server.handlers.PathHandler.handleRequest(PathHandler.java:91)
              at io.undertow.server.handlers.ChannelUpgradeHandler.handleRequest(ChannelUpgradeHandler.java:211)
              at io.undertow.server.handlers.cache.CacheHandler.handleRequest(CacheHandler.java:92)
              at io.undertow.server.handlers.error.SimpleErrorPageHandler.handleRequest(SimpleErrorPageHandler.java:78)
              at io.undertow.server.handlers.CanonicalPathHandler.handleRequest(CanonicalPathHandler.java:49)
              at org.jboss.as.domain.http.server.ManagementHttpRequestHandler.handleRequest(ManagementHttpRequestHandler.java:57)
              at org.jboss.as.domain.http.server.cors.CorsHttpHandler.handleRequest(CorsHttpHandler.java:75)
              at org.jboss.as.domain.http.server.ManagementHttpServer$UpgradeFixHandler.handleRequest(ManagementHttpServer.java:662)
              at io.undertow.server.Connectors.executeRootHandler(Connectors.java:364)
              at io.undertow.server.protocol.http.HttpReadListener.handleEventWithNoRunningRequest(HttpReadListener.java:255)
              at io.undertow.server.protocol.http.HttpReadListener.handleEvent(HttpReadListener.java:136)
              at io.undertow.server.protocol.http.HttpReadListener.handleEvent(HttpReadListener.java:59)
              at org.xnio.ChannelListeners.invokeChannelListener(ChannelListeners.java:92)
              at org.xnio.conduits.ReadReadyHandler$ChannelListenerHandler.readReady(ReadReadyHandler.java:66)
              at org.xnio.nio.NioSocketConduit.handleReady(NioSocketConduit.java:89)
              at org.xnio.nio.WorkerThread.run(WorkerThread.java:591)
      
      15:14:58,673 ERROR [org.jboss.as.controller.management-operation] (management I/O-2) WFLYCTL0013: Operation ("read-attribute") failed - address: ([
          ("subsystem" => "jgroups"),
          ("channel" => "ee"),
          ("protocol" => "UDP")
      ]): java.lang.OutOfMemoryError: GC overhead limit exceeded
      
      15:14:58,675 ERROR [io.undertow.request] (management I/O-2) UT005071: Undertow request failed HttpServerExchange{ GET /metrics request {Accept=[text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8], Connection=[keep-alive], Accept-Language=[de,en-US;q=0.7,en;q=0.3], Cache-Control=[max-age=0], Accept-Encoding=[gzip, deflate], User-Agent=[Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:68.0) Gecko/20100101 Firefox/68.0], Upgrade-Insecure-Requests=[1], Host=[192.168.99.100:9990]} response {Access-Control-Allow-Origin=[*], Access-Control-Allow-Headers=[origin, content-type, accept, authorization], Access-Control-Allow-Credentials=[true], Content-Type=[text/plain], Access-Control-Allow-Methods=[GET, POST, PUT, DELETE, OPTIONS, HEAD], Access-Control-Max-Age=[1209600]}}: java.lang.IllegalStateException: WFLYMETRICS0003: Unable to read attribute max_bundle_size on [
          ("subsystem" => "jgroups"),
          ("channel" => "ee"),
          ("protocol" => "UDP")
      ]: "WFLYCTL0158: Operation handler failed: java.lang.OutOfMemoryError: GC overhead limit exceeded".
              at org.wildfly.extension.microprofile.metrics.MetricCollector.lambda$collectResourceMetrics0$0(MetricCollector.java:143)
              at org.wildfly.extension.microprofile.metrics.PrometheusCollector.collect(PrometheusCollector.java:51)
              at io.prometheus.client.CollectorRegistry$MetricFamilySamplesEnumeration.findNextElement(CollectorRegistry.java:183)
              at io.prometheus.client.CollectorRegistry$MetricFamilySamplesEnumeration.<init>(CollectorRegistry.java:147)
              at io.prometheus.client.CollectorRegistry$MetricFamilySamplesEnumeration.<init>(CollectorRegistry.java:168)
              at io.prometheus.client.CollectorRegistry.metricFamilySamples(CollectorRegistry.java:130)
              at org.wildfly.extension.microprofile.metrics.MetricsContextService$1.handleRequest(MetricsContextService.java:100)
              at org.jboss.as.domain.http.server.security.RealmReadinessHandler.handleRequest(RealmReadinessHandler.java:51)
              at org.jboss.as.domain.http.server.security.ServerErrorReadinessHandler.handleRequest(ServerErrorReadinessHandler.java:35)
              at io.undertow.server.handlers.PathHandler.handleRequest(PathHandler.java:91)
              at io.undertow.server.handlers.ChannelUpgradeHandler.handleRequest(ChannelUpgradeHandler.java:211)
              at io.undertow.server.handlers.cache.CacheHandler.handleRequest(CacheHandler.java:92)
              at io.undertow.server.handlers.error.SimpleErrorPageHandler.handleRequest(SimpleErrorPageHandler.java:78)
              at io.undertow.server.handlers.CanonicalPathHandler.handleRequest(CanonicalPathHandler.java:49)
              at org.jboss.as.domain.http.server.ManagementHttpRequestHandler.handleRequest(ManagementHttpRequestHandler.java:57)
              at org.jboss.as.domain.http.server.cors.CorsHttpHandler.handleRequest(CorsHttpHandler.java:75)
              at org.jboss.as.domain.http.server.ManagementHttpServer$UpgradeFixHandler.handleRequest(ManagementHttpServer.java:662)
              at io.undertow.server.Connectors.executeRootHandler(Connectors.java:364)
              at io.undertow.server.protocol.http.HttpReadListener.handleEventWithNoRunningRequest(HttpReadListener.java:255)
              at io.undertow.server.protocol.http.HttpReadListener.handleEvent(HttpReadListener.java:136)
              at io.undertow.server.protocol.http.HttpOpenListener.handleEvent(HttpOpenListener.java:162)
              at io.undertow.server.protocol.http.HttpOpenListener.handleEvent(HttpOpenListener.java:100)
              at io.undertow.server.protocol.http.HttpOpenListener.handleEvent(HttpOpenListener.java:57)
              at org.xnio.ChannelListeners.invokeChannelListener(ChannelListeners.java:92)
              at org.xnio.ChannelListeners$10.handleEvent(ChannelListeners.java:291)
              at org.xnio.ChannelListeners$10.handleEvent(ChannelListeners.java:286)
              at org.xnio.ChannelListeners.invokeChannelListener(ChannelListeners.java:92)
              at org.xnio.nio.QueuedNioTcpServer$1.run(QueuedNioTcpServer.java:131)
              at org.xnio.nio.WorkerThread.safeRun(WorkerThread.java:612)
              at org.xnio.nio.WorkerThread.run(WorkerThread.java:479)
      

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                • Assignee:
                  ropalka Richard Opalka
                  Reporter:
                  mwerlitz Mathias Werlitz
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                  • Created:
                    Updated:
                    Resolved: