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From "Junping Du (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HADOOP-12213) Interrupted exception can occur when Client#stop is called
Date Fri, 06 Jan 2017 07:40:58 GMT

     [ https://issues.apache.org/jira/browse/HADOOP-12213?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Junping Du updated HADOOP-12213:
--------------------------------
    Fix Version/s: 2.8.0

> Interrupted exception can occur when Client#stop is called
> ----------------------------------------------------------
>
>                 Key: HADOOP-12213
>                 URL: https://issues.apache.org/jira/browse/HADOOP-12213
>             Project: Hadoop Common
>          Issue Type: Bug
>    Affects Versions: 2.3.0
>            Reporter: Oleg Zhurakousky
>            Assignee: Kuhu Shukla
>            Priority: Minor
>              Labels: newbie
>             Fix For: 2.8.0, 2.7.2, 3.0.0-alpha1
>
>         Attachments: YARN-1965-v2.patch, YARN-1965-v3.patch, YARN-1965.patch
>
>
> Its more of a nuisance then a bug, but nevertheless 
> {code}
> 16:16:48,709 ERROR pool-1-thread-1 ipc.Client:195 - Interrupted while waiting for clientExecutorto
stop
> java.lang.InterruptedException
> 	at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.awaitNanos(AbstractQueuedSynchronizer.java:2072)
> 	at java.util.concurrent.ThreadPoolExecutor.awaitTermination(ThreadPoolExecutor.java:1468)
> 	at org.apache.hadoop.ipc.Client$ClientExecutorServiceFactory.unrefAndCleanup(Client.java:191)
> 	at org.apache.hadoop.ipc.Client.stop(Client.java:1235)
> 	at org.apache.hadoop.ipc.ClientCache.stopClient(ClientCache.java:100)
> 	at org.apache.hadoop.ipc.ProtobufRpcEngine$Invoker.close(ProtobufRpcEngine.java:251)
> 	at org.apache.hadoop.ipc.RPC.stopProxy(RPC.java:626)
> 	at org.apache.hadoop.yarn.api.impl.pb.client.ApplicationClientProtocolPBClientImpl.close(ApplicationClientProtocolPBClientImpl.java:112)
> 	at org.apache.hadoop.ipc.RPC.stopProxy(RPC.java:621)
> 	at org.apache.hadoop.io.retry.DefaultFailoverProxyProvider.close(DefaultFailoverProxyProvider.java:57)
> 	at org.apache.hadoop.io.retry.RetryInvocationHandler.close(RetryInvocationHandler.java:206)
> 	at org.apache.hadoop.ipc.RPC.stopProxy(RPC.java:626)
> 	at org.apache.hadoop.yarn.client.api.impl.YarnClientImpl.serviceStop(YarnClientImpl.java:124)
> 	at org.apache.hadoop.service.AbstractService.stop(AbstractService.java:221)
> . . .
> {code}
> It happens sporadically when stopping YarnClient. 
> Looking at the code in Client's 'unrefAndCleanup' its not immediately obvious why and
who throws the interrupt but in any event it should not be logged as ERROR. Probably a WARN
with no stack trace.
> Also, for consistency and correctness you may want to Interrupt current thread as well.



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