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From "Yuki Morishita (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (CASSANDRA-9019) GCInspector detected GC before ThreadPools are initialized
Date Fri, 27 Mar 2015 22:32:53 GMT

     [ https://issues.apache.org/jira/browse/CASSANDRA-9019?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Yuki Morishita updated CASSANDRA-9019:
--------------------------------------
    Attachment: 9019-v2.txt

Attached v2.
This version checks if MBean is registered before getting attributes.
When MBean is not there, return string "N/A".

Other exception is just thrown as runtime Error(or RuntimeException) and is logged by default
error handler.

Also fixed StatusLogger to use logger instead of System.out.

> GCInspector detected GC before ThreadPools are initialized
> ----------------------------------------------------------
>
>                 Key: CASSANDRA-9019
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-9019
>             Project: Cassandra
>          Issue Type: Bug
>            Reporter: Philip Thompson
>            Assignee: Yuki Morishita
>             Fix For: 3.0
>
>         Attachments: 9019-v2.txt, 9019.txt
>
>
> While running the dtest {{one_all_test (consistency_test.TestConsistency)}}, I ran into
the following exception:
> {code}
> java.lang.RuntimeException: Error reading: org.apache.cassandra.metrics:type=ThreadPools,path=request,scope=ReadStage,name=ActiveTasks
>         at org.apache.cassandra.metrics.ThreadPoolMetrics.getJmxMetric(ThreadPoolMetrics.java:134)
>         at org.apache.cassandra.utils.StatusLogger.log(StatusLogger.java:55)
>         at org.apache.cassandra.service.GCInspector.handleNotification(GCInspector.java:147)
>         at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor$ListenerWrapper.handleNotification(DefaultMBeanServerInterceptor.java:1754)
>         at sun.management.NotificationEmitterSupport.sendNotification(NotificationEmitterSupport.java:156)
>         at sun.management.GarbageCollectorImpl.createGCNotification(GarbageCollectorImpl.java:150)
> Caused by: java.lang.reflect.UndeclaredThrowableException
>         at com.sun.proxy.$Proxy3.getValue(Unknown Source)
>         at org.apache.cassandra.metrics.ThreadPoolMetrics.getJmxMetric(ThreadPoolMetrics.java:123)
>         ... 5 more
> Caused by: javax.management.InstanceNotFoundException: org.apache.cassandra.metrics:type=ThreadPools,path=request,scope=ReadStage,name=ActiveTasks
>         at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.getMBean(DefaultMBeanServerInterceptor.java:1095)
>         at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.getAttribute(DefaultMBeanServerInterceptor.java:643)
>         at com.sun.jmx.mbeanserver.JmxMBeanServer.getAttribute(JmxMBeanServer.java:678)
>         at javax.management.MBeanServerInvocationHandler.invoke(MBeanServerInvocationHandler.java:267)
>         ... 7 more
>     
> {code}
> Dtest didn't preserve the logs, which implies that this wasn't in the system.log, but
printed to stderr somehow, it's unclear with all the piping dtest and ccm do. I have yet to
reproduce the issue.



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