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From "Allen Wittenauer (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (HDFS-1350) make datanodes do graceful shutdown
Date Wed, 30 Jul 2014 23:37:39 GMT

     [ https://issues.apache.org/jira/browse/HDFS-1350?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Allen Wittenauer resolved HDFS-1350.
------------------------------------

    Resolution: Won't Fix

Based upon context, this appears to have been a 0.20-append issue... and as such, append got
overhauled in 2.x.  Closing at won't fix.

> make datanodes do graceful shutdown
> -----------------------------------
>
>                 Key: HDFS-1350
>                 URL: https://issues.apache.org/jira/browse/HDFS-1350
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>          Components: datanode
>            Reporter: sam rash
>            Assignee: sam rash
>
> we found that the Datanode doesn't do a graceful shutdown and a block can be corrupted
(data + checksum amounts off)
> we can make the DN do a graceful shutdown in case there are open files. if this presents
a problem to a timely shutdown, we can make a it a parameter of how long to wait for the full
graceful shutdown before just exiting



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