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From "Anu Engineer (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-11845) Ozone: Output error when DN handshakes with SCM
Date Fri, 09 Jun 2017 17:40:18 GMT

    [ https://issues.apache.org/jira/browse/HDFS-11845?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16044746#comment-16044746
] 

Anu Engineer commented on HDFS-11845:
-------------------------------------

+1, I think we set small values for ease of unit testing. You are right, in a real cluster
it is too aggressive. I will commit this shortly.


> Ozone: Output error when DN handshakes with SCM
> -----------------------------------------------
>
>                 Key: HDFS-11845
>                 URL: https://issues.apache.org/jira/browse/HDFS-11845
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>          Components: ozone
>            Reporter: Weiwei Yang
>            Assignee: Weiwei Yang
>            Priority: Minor
>         Attachments: HDFS-11845-HDFS-7240.001.patch
>
>
> When start SCM and DN, there is always an error in SCM log
> {noformat}
> 17/05/17 15:19:59 WARN ipc.Server: IPC Server handler 9 on 9861, call Call#4 Retry#0
org.apache.hadoop.ozone.protocol.StorageContainerDatanodeProtocol.getVersion from 172.16.165.133:44824:
output error
> 17/05/17 15:19:59 INFO ipc.Server: IPC Server handler 9 on 9861 caught an exception
> java.nio.channels.ClosedChannelException
> 	at sun.nio.ch.SocketChannelImpl.ensureWriteOpen(SocketChannelImpl.java:270)
> 	at sun.nio.ch.SocketChannelImpl.write(SocketChannelImpl.java:461)
> 	at org.apache.hadoop.ipc.Server.channelWrite(Server.java:3216)
> 	at org.apache.hadoop.ipc.Server.access$1600(Server.java:135)
> 	at org.apache.hadoop.ipc.Server$Responder.processResponse(Server.java:1463)
> 	at org.apache.hadoop.ipc.Server$Responder.doRespond(Server.java:1533)
> 	at org.apache.hadoop.ipc.Server$Connection.sendResponse(Server.java:2581)
> 	at org.apache.hadoop.ipc.Server$Connection.access$300(Server.java:1605)
> 	at org.apache.hadoop.ipc.Server$RpcCall.doResponse(Server.java:931)
> 	at org.apache.hadoop.ipc.Server$Call.sendResponse(Server.java:765)
> 	at org.apache.hadoop.ipc.Server$RpcCall.run(Server.java:876)
> 	at org.apache.hadoop.ipc.Server$RpcCall.run(Server.java:813)
> 	at java.security.AccessController.doPrivileged(Native Method)
> 	at javax.security.auth.Subject.doAs(Subject.java:422)
> 	at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1965)
> 	at org.apache.hadoop.ipc.Server$Handler.run(Server.java:2659)
> {noformat}



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