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https://issues.apache.org/jira/browse/HDDS-4411?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Attila Doroszlai resolved HDDS-4411.
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Resolution: Fixed
> Ozone DataNode has GRPC shutdown error in stderr
> -------------------------------------------------
>
> Key: HDDS-4411
> URL: https://issues.apache.org/jira/browse/HDDS-4411
> Project: Apache Ozone
> Issue Type: Bug
> Components: Ozone Datanode
> Affects Versions: 1.0.0
> Reporter: Wei-Chiu Chuang
> Priority: Major
>
> I am not sure if this belongs to Ratis or Ozone. Please feel free to move to
> a more suitable place. Found lots of error messages in stderr after I lost a
> disk and Ozone started to replicate containers around.
> {noformat}
> Oct 29, 2020 11:29:23 AM
> org.apache.ratis.thirdparty.io.grpc.internal.ManagedChannelOrphanWrapper$ManagedChannelReference
> cleanQueue
> SEVERE: *~*~*~ Channel ManagedChannelImpl{logId=2961751,
> target=10.12.1.80:9859} was not shutdown properly!!! ~*~*~*
> Make sure to call shutdown()/shutdownNow() and wait until
> awaitTermination() returns true.
> java.lang.RuntimeException: ManagedChannel allocation site
> at
> org.apache.ratis.thirdparty.io.grpc.internal.ManagedChannelOrphanWrapper$ManagedChannelReference.<init>(ManagedChannelOrphanWrapper.java:93)
> at
> org.apache.ratis.thirdparty.io.grpc.internal.ManagedChannelOrphanWrapper.<init>(ManagedChannelOrphanWrapper.java:53)
> at
> org.apache.ratis.thirdparty.io.grpc.internal.ManagedChannelOrphanWrapper.<init>(ManagedChannelOrphanWrapper.java:44)
> at
> org.apache.ratis.thirdparty.io.grpc.internal.AbstractManagedChannelImplBuilder.build(AbstractManagedChannelImplBuilder.java:518)
> at
> org.apache.hadoop.ozone.container.replication.GrpcReplicationClient.<init>(GrpcReplicationClient.java:84)
> at
> org.apache.hadoop.ozone.container.replication.SimpleContainerDownloader.getContainerDataFromReplicas(SimpleContainerDownloader.java:79)
> at
> org.apache.hadoop.ozone.container.replication.DownloadAndImportReplicator.replicate(DownloadAndImportReplicator.java:112)
> at
> org.apache.hadoop.ozone.container.replication.ReplicationSupervisor$TaskRunner.run(ReplicationSupervisor.java:129)
> at
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
> at java.lang.Thread.run(Thread.java:748)
> {noformat}
> Looks like a cosmetic issue, but I wonder if there's possibility for resource
> leakage if the thread is not shutdown properly. File this jira for the record.
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