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https://issues.apache.org/jira/browse/HDDS-2056?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16918463#comment-16918463
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Shashikant Banerjee commented on HDDS-2056:
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cc [~xyao]
> Datanode unable to start command handler thread with security enabled
> ---------------------------------------------------------------------
>
> Key: HDDS-2056
> URL: https://issues.apache.org/jira/browse/HDDS-2056
> Project: Hadoop Distributed Data Store
> Issue Type: Bug
> Reporter: Shashikant Banerjee
> Priority: Major
> Fix For: 0.5.0
>
>
>
> {code:java}
> 2019-08-29 02:50:23,536 ERROR
> org.apache.hadoop.ozone.container.common.statemachine.DatanodeStateMachine:
> Critical Error : Command processor thread encountered an error. Thread:
> Thread[Command processor thread,5,main]
> java.lang.IllegalArgumentException: Null user
> at
> org.apache.hadoop.security.UserGroupInformation.createRemoteUser(UserGroupInformation.java:1269)
> at
> org.apache.hadoop.security.UserGroupInformation.createRemoteUser(UserGroupInformation.java:1256)
> at
> org.apache.hadoop.hdds.security.token.BlockTokenVerifier.verify(BlockTokenVerifier.java:116)
> at
> org.apache.hadoop.ozone.container.common.transport.server.XceiverServer.submitRequest(XceiverServer.java:68)
> at
> org.apache.hadoop.ozone.container.common.transport.server.ratis.XceiverServerRatis.submitRequest(XceiverServerRatis.java:482)
> at
> org.apache.hadoop.ozone.container.common.statemachine.commandhandler.CloseContainerCommandHandler.handle(CloseContainerCommandHandler.java:109)
> at
> org.apache.hadoop.ozone.container.common.statemachine.commandhandler.CommandDispatcher.handle(CommandDispatcher.java:93)
> at
> org.apache.hadoop.ozone.container.common.statemachine.DatanodeStateMachine.lambda$initCommandHandlerThread$1(DatanodeStateMachine.java:432)
> at java.lang.Thread.run(Thread.java:748)
> {code}
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