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From "Kihwal Lee (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-6016) Update datanode replacement policy to make writes more robust
Date Tue, 25 Feb 2014 22:23:23 GMT

    [ https://issues.apache.org/jira/browse/HDFS-6016?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13912158#comment-13912158
] 

Kihwal Lee commented on HDFS-6016:
----------------------------------

One test failure is likely unrelated, but the rest may be due to this change. I will investigate
further on the cause of the failures.

> Update datanode replacement policy to make writes more robust
> -------------------------------------------------------------
>
>                 Key: HDFS-6016
>                 URL: https://issues.apache.org/jira/browse/HDFS-6016
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>          Components: datanode, ha, hdfs-client, namenode
>            Reporter: Kihwal Lee
>            Assignee: Kihwal Lee
>         Attachments: HDFS-6016.patch
>
>
> As discussed in HDFS-5924, writers that are down to only one node due to node failures
can suffer if a DN does not restart in time. We do not worry about writes that began with
single replica. 



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