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From "Andrew Wang (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-6696) Name node cannot start if the path of a file under construction contains ".snapshot"
Date Wed, 23 Jul 2014 21:38:41 GMT

    [ https://issues.apache.org/jira/browse/HDFS-6696?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14072384#comment-14072384
] 

Andrew Wang commented on HDFS-6696:
-----------------------------------

Forgot to make this patch available...review would still be appreciated, since this is a blocker.

> Name node cannot start if the path of a file under construction contains ".snapshot"
> ------------------------------------------------------------------------------------
>
>                 Key: HDFS-6696
>                 URL: https://issues.apache.org/jira/browse/HDFS-6696
>             Project: Hadoop HDFS
>          Issue Type: Bug
>            Reporter: Kihwal Lee
>            Assignee: Andrew Wang
>            Priority: Blocker
>         Attachments: hdfs-6696.001.patch
>
>
> Using {{-renameReserved}} to rename ".snapshot" in a pre-hdfs-snapshot feature fsimage
during upgrade only works, if there is nothing under construction under the renamed directory.
 I am not sure whether it takes care of edits containing ".snapshot" properly.
> The workaround is to identify these directories and rename, then do {{saveNamespace}}
before performing upgrade.



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