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https://issues.apache.org/jira/browse/YARN-1965?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Kuhu Shukla updated YARN-1965:
------------------------------
Attachment: YARN-1965.patch
Fix to log Interrupted Exception in IPC Client as a warning. The current thread
is interrupted once the Exception is caught. Also, some cleanup code in TestIPC
is added so that the client executor count is decremented after each test.
> Interrupted exception when closing YarnClient
> ---------------------------------------------
>
> Key: YARN-1965
> URL: https://issues.apache.org/jira/browse/YARN-1965
> Project: Hadoop YARN
> Issue Type: Bug
> Components: api
> Affects Versions: 2.3.0
> Reporter: Oleg Zhurakousky
> Assignee: Kuhu Shukla
> Priority: Minor
> Labels: newbie
> Attachments: 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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