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From "Eric Payne (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HDFS-7533) Datanode sometimes does not shutdown on receiving upgrade shutdown command
Date Sun, 11 Jan 2015 01:36:35 GMT

     [ https://issues.apache.org/jira/browse/HDFS-7533?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Eric Payne updated HDFS-7533:
-----------------------------
    Status: Patch Available  (was: Open)

> 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
>         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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