Details
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Bug
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Status: Closed
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Minor
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Resolution: Fixed
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2.3.0
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None
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Reviewed
Description
Its more of a nuisance then a bug, but nevertheless
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) . . .
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.