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From "Kihwal Lee (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-10727) Block move is failed: opReplaceBlock - Mover
Date Fri, 05 Aug 2016 13:35:20 GMT

    [ https://issues.apache.org/jira/browse/HDFS-10727?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15409456#comment-15409456

Kihwal Lee commented on HDFS-10727:

bq. 2) java.io.EOFException: Premature EOF: no length prefix available
This indicates that the datanode closed the connection.  Inspecting datanode logs might reveal
more information. E.g. if the xceiver count limit was exceeded, the connection will be shut
down. Or it could be due to a saturation. See if there was a saturation of bandwidth in the
network or disk I/O. In any case, examining datanode logs will be helpful.

> Block move is failed: opReplaceBlock  - Mover
> ---------------------------------------------
>                 Key: HDFS-10727
>                 URL: https://issues.apache.org/jira/browse/HDFS-10727
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: balancer & mover
>            Reporter: Senthilkumar
>            Priority: Minor
> java.io.IOException: block move is failed: opReplaceBlock BP-1267816582-
received exception java.io.EOFException: Premature EOF: no length prefix available
>         at org.apache.hadoop.hdfs.server.mover.PendingBlockMove.receiveResponse(PendingBlockMove.java:279)
>         at org.apache.hadoop.hdfs.server.mover.PendingBlockMove.dispatch(PendingBlockMove.java:207)
>         at org.apache.hadoop.hdfs.server.mover.PendingBlockMove.access$000(PendingBlockMove.java:36)
>         at org.apache.hadoop.hdfs.server.mover.PendingBlockMove$1.run(PendingBlockMove.java:297)
>         at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
>         at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
>         at java.lang.Thread.run(Thread.java:745)

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