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From "Zhe Zhang (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-8193) Add the ability to delay replica deletion for a period of time
Date Tue, 12 May 2015 16:47:03 GMT

    [ https://issues.apache.org/jira/browse/HDFS-8193?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14540188#comment-14540188
] 

Zhe Zhang commented on HDFS-8193:
---------------------------------

[~lpstudy] Thanks for the interest! I'll copy your comments over to HDFS-7285 and we can continue
the discussion there.

> Add the ability to delay replica deletion for a period of time
> --------------------------------------------------------------
>
>                 Key: HDFS-8193
>                 URL: https://issues.apache.org/jira/browse/HDFS-8193
>             Project: Hadoop HDFS
>          Issue Type: New Feature
>          Components: namenode
>    Affects Versions: 2.7.0
>            Reporter: Aaron T. Myers
>            Assignee: Zhe Zhang
>
> When doing maintenance on an HDFS cluster, users may be concerned about the possibility
of administrative mistakes or software bugs deleting replicas of blocks that cannot easily
be restored. It would be handy if HDFS could be made to optionally not delete any replicas
for a configurable period of time.



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