[ 
https://issues.apache.org/jira/browse/IGNITE-13627?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17220895#comment-17220895
 ] 

Sergei Ryzhov commented on IGNITE-13627:
----------------------------------------

ранее встречается такая ошибка 

{code:java}
[2020-10-26T14:09:45,199][ERROR][grid-nio-worker-tcp-comm-7-#46%TcpCommunicationSpi%][JmxMetricExporterSpi]
 MBean for metric registry 
'communication.tcp.tkles-pprb00178.vm.esrt.cloud.sbrf.ru' can't be created.
javax.management.InstanceAlreadyExistsException: 
org.apache:clsLdr=764c12b6,group=communication,name="tcp.tkles-pprb00178.vm.esrt.cloud.sbrf.ru"
        at com.sun.jmx.mbeanserver.Repository.addMBean(Repository.java:437) 
~[?:1.8.0_202]
        at 
com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.registerWithRepository(DefaultMBeanServerInterceptor.java:1898)
 ~[?:1.8.0_202]
        at 
com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.registerDynamicMBean(DefaultMBeanServerInterceptor.java:966)
 ~[?:1.8.0_202]
        at 
com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.registerObject(DefaultMBeanServerInterceptor.java:900)
 ~[?:1.8.0_202]
        at 
com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.registerMBean(DefaultMBeanServerInterceptor.java:324)
 ~[?:1.8.0_202]
        at 
com.sun.jmx.mbeanserver.JmxMBeanServer.registerMBean(JmxMBeanServer.java:522) 
~[?:1.8.0_202]
        at 
org.apache.ignite.internal.util.IgniteUtils.registerMBean(IgniteUtils.java:4894)
 ~[classes/:?]
        at 
org.apache.ignite.internal.util.IgniteUtils.registerMBean(IgniteUtils.java:4858)
 ~[classes/:?]
        at 
org.apache.ignite.spi.metric.jmx.JmxMetricExporterSpi.register(JmxMetricExporterSpi.java:79)
 ~[classes/:?]
        at 
org.apache.ignite.internal.util.IgniteUtils.notifyListeners(IgniteUtils.java:11740)
 ~[classes/:?]
        at 
org.apache.ignite.internal.processors.metric.GridMetricManager.lambda$registry$3(GridMetricManager.java:367)
 ~[classes/:?]
        at 
java.util.concurrent.ConcurrentHashMap.computeIfAbsent(ConcurrentHashMap.java:1660)
 ~[?:1.8.0_202]
        at 
org.apache.ignite.internal.processors.metric.GridMetricManager.registry(GridMetricManager.java:361)
 ~[classes/:?]
        at 
org.apache.ignite.internal.managers.GridManagerAdapter$1.getOrCreateMetricRegistry(GridManagerAdapter.java:611)
 ~[classes/:?]
        at 
org.apache.ignite.spi.communication.tcp.TcpCommunicationMetricsListener.lambda$new$1(TcpCommunicationMetricsListener.java:128)
 ~[classes/:?]
        at java.util.HashMap.computeIfAbsent(HashMap.java:1127) [?:1.8.0_202]
        at 
org.apache.ignite.spi.communication.tcp.TcpCommunicationMetricsListener$ThreadMetrics.onMessageSent(TcpCommunicationMetricsListener.java:465)
 [classes/:?]
        at 
org.apache.ignite.spi.communication.tcp.TcpCommunicationMetricsListener$ThreadMetrics.access$000(TcpCommunicationMetricsListener.java:447)
 [classes/:?]
        at 
org.apache.ignite.spi.communication.tcp.TcpCommunicationMetricsListener.onMessageSent(TcpCommunicationMetricsListener.java:210)
 [classes/:?]
        at 
org.apache.ignite.spi.communication.tcp.internal.InboundConnectionHandler.onMessageSent(InboundConnectionHandler.java:262)
 [classes/:?]
        at 
org.apache.ignite.spi.communication.tcp.internal.InboundConnectionHandler.onMessageSent(InboundConnectionHandler.java:80)
 [classes/:?]
        at 
org.apache.ignite.internal.util.nio.GridNioServer.onMessageWritten(GridNioServer.java:1807)
 [classes/:?]
        at 
org.apache.ignite.internal.util.nio.GridNioServer.access$1900(GridNioServer.java:109)
 [classes/:?]
        at 
org.apache.ignite.internal.util.nio.GridNioServer$DirectNioClientWorker.writeToBuffer(GridNioServer.java:1769)
 [classes/:?]
        at 
org.apache.ignite.internal.util.nio.GridNioServer$DirectNioClientWorker.processWrite0(GridNioServer.java:1672)
 [classes/:?]
        at 
org.apache.ignite.internal.util.nio.GridNioServer$DirectNioClientWorker.processWrite(GridNioServer.java:1390)
 [classes/:?]
        at 
org.apache.ignite.internal.util.nio.GridNioServer$AbstractNioClientWorker.processSelectedKeysOptimized(GridNioServer.java:2486)
 [classes/:?]
        at 
org.apache.ignite.internal.util.nio.GridNioServer$AbstractNioClientWorker.bodyInternal(GridNioServer.java:2248)
 [classes/:?]
        at 
org.apache.ignite.internal.util.nio.GridNioServer$AbstractNioClientWorker.body(GridNioServer.java:1885)
 [classes/:?]
        at 
org.apache.ignite.internal.util.worker.GridWorker.run(GridWorker.java:120) 
[classes/:?]
        at java.lang.Thread.run(Thread.java:748) [?:1.8.0_202]
{code}


> Critical system error when unregister a JMX bean
> ------------------------------------------------
>
>                 Key: IGNITE-13627
>                 URL: https://issues.apache.org/jira/browse/IGNITE-13627
>             Project: Ignite
>          Issue Type: Task
>            Reporter: Sergei Ryzhov
>            Assignee: Sergei Ryzhov
>            Priority: Blocker
>             Fix For: 2.10, 2.9.1
>
>         Attachments: logs.zip
>
>
> Critical system error when unregister a JMX bean
> {noformat}
> [2020-10-26T14:10:55,411][ERROR][disco-event-worker-#71][] Critical system 
> error detected. Will be handled accordingly to configured handler 
> [hnd=StopNodeOrHaltFailureHandler [tryStop=false, timeout=0, 
> super=AbstractFailureHandler [ignoredFailureTypes=UnmodifiableSet 
> [SYSTEM_WORKER_BLOCKED, SYSTEM_CRITICAL_OPERATION_TIMEOUT]]], 
> failureCtx=FailureContext [type=SYSTEM_WORKER_TERMINATION, 
> err=java.lang.AssertionError]]
> java.lang.AssertionError: null
>       at 
> org.apache.ignite.spi.metric.jmx.JmxMetricExporterSpi.unregister(JmxMetricExporterSpi.java:110)
>  ~[classes/:?]
>       at 
> org.apache.ignite.internal.util.IgniteUtils.notifyListeners(IgniteUtils.java:11740)
>  ~[classes/:?]
>       at 
> org.apache.ignite.internal.processors.metric.GridMetricManager.remove(GridMetricManager.java:418)
>  ~[classes/:?]
>       at 
> org.apache.ignite.internal.managers.GridManagerAdapter$1.removeMetricRegistry(GridManagerAdapter.java:615)
>  ~[classes/:?]
>       at 
> org.apache.ignite.spi.communication.tcp.TcpCommunicationMetricsListener.onNodeLeft(TcpCommunicationMetricsListener.java:399)
>  ~[classes/:?]
>       at 
> org.apache.ignite.spi.communication.tcp.internal.CommunicationDiscoveryEventListener.onNodeLeft(CommunicationDiscoveryEventListener.java:77)
>  ~[classes/:?]
>       at 
> org.apache.ignite.spi.communication.tcp.internal.CommunicationDiscoveryEventListener.onEvent(CommunicationDiscoveryEventListener.java:62)
>  ~[classes/:?]
>       at 
> org.apache.ignite.internal.managers.eventstorage.GridEventStorageManager$LocalListenerWrapper.onEvent(GridEventStorageManager.java:1399)
>  ~[classes/:?]
>       at 
> org.apache.ignite.internal.managers.eventstorage.GridEventStorageManager.notifyListeners(GridEventStorageManager.java:894)
>  ~[classes/:?]
>       at 
> org.apache.ignite.internal.managers.eventstorage.GridEventStorageManager.notifyListeners(GridEventStorageManager.java:877)
>  ~[classes/:?]
>       at 
> org.apache.ignite.internal.managers.eventstorage.GridEventStorageManager.record0(GridEventStorageManager.java:350)
>  ~[classes/:?]
>       at 
> org.apache.ignite.internal.managers.eventstorage.GridEventStorageManager.record(GridEventStorageManager.java:313)
>  ~[classes/:?]
>       at 
> org.apache.ignite.internal.managers.discovery.GridDiscoveryManager$DiscoveryWorker.recordEvent(GridDiscoveryManager.java:2889)
>  ~[classes/:?]
>       at 
> org.apache.ignite.internal.managers.discovery.GridDiscoveryManager$DiscoveryWorker.body0(GridDiscoveryManager.java:3105)
>  ~[classes/:?]
>       at 
> org.apache.ignite.internal.managers.discovery.GridDiscoveryManager$DiscoveryWorker.body(GridDiscoveryManager.java:2909)
>  [classes/:?]
>       at 
> org.apache.ignite.internal.util.worker.GridWorker.run(GridWorker.java:120) 
> [classes/:?]
>       at java.lang.Thread.run(Thread.java:748) [?:1.8.0_202]
> {noformat}



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