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Posted to hdfs-dev@hadoop.apache.org by "Allen Wittenauer (JIRA)" <ji...@apache.org> on 2014/07/31 01:37:39 UTC

[jira] [Resolved] (HDFS-1350) make datanodes do graceful shutdown

     [ 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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