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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-7533) Datanode sometimes does not shutdown on receiving upgrade shutdown command
Date Tue, 13 Jan 2015 14:36:46 GMT

    [ https://issues.apache.org/jira/browse/HDFS-7533?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14275256#comment-14275256
] 

Hudson commented on HDFS-7533:
------------------------------

FAILURE: Integrated in Hadoop-Hdfs-trunk-Java8 #69 (See [https://builds.apache.org/job/Hadoop-Hdfs-trunk-Java8/69/])
HDFS-7533. Datanode sometimes does not shutdown on receiving upgrade shutdown command. Contributed
by Eric Payne. (kihwal: rev 6bbf9fdd041d2413dd78e2bce51abae15f3334c2)
* hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt
* hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/datanode/TestDataNodeExit.java
* hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/datanode/DataNode.java


> Datanode sometimes does not shutdown on receiving upgrade shutdown command
> --------------------------------------------------------------------------
>
>                 Key: HDFS-7533
>                 URL: https://issues.apache.org/jira/browse/HDFS-7533
>             Project: Hadoop HDFS
>          Issue Type: Bug
>            Reporter: Kihwal Lee
>            Assignee: Eric Payne
>             Fix For: 2.7.0
>
>         Attachments: HDFS-7533.v1.txt
>
>
> When datanode is told to shutdown via the dfsadmin command during rolling upgrade, it
may not shutdown.  This is because not all writers have responder running, but sendOOB() tries
anyway. This causes NPE and the shutdown thread dies, halting the shutdown after only shutting
down DataXceiverServer. 



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