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Date: Fri, 27 May 2011 23:32:47 +0000 (UTC)
From: "Todd Lipcon (JIRA)" <jira@apache.org>
To: hdfs-issues@hadoop.apache.org
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Subject: [jira] [Commented] (HDFS-1936) Updating the layout version from
 HDFS-1822 causes upgrade problems.
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    [ https://issues.apache.org/jira/browse/HDFS-1936?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13040500#comment-13040500 ] 

Todd Lipcon commented on HDFS-1936:
-----------------------------------

Sounds good to me.

> Updating the layout version from HDFS-1822 causes upgrade problems.
> -------------------------------------------------------------------
>
>                 Key: HDFS-1936
>                 URL: https://issues.apache.org/jira/browse/HDFS-1936
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: name-node
>    Affects Versions: 0.22.0, 0.23.0
>            Reporter: Suresh Srinivas
>            Assignee: Suresh Srinivas
>            Priority: Blocker
>             Fix For: 0.22.0, 0.23.0
>
>         Attachments: HDFS-1936.3.patch, HDFS-1936.4.patch, HDFS-1936.trunk.patch, hadoop-22-dfs-dir.tgz, hdfs-1936-with-testcase.txt
>
>
> In HDFS-1822 and HDFS-1842, the layout versions for 203, 204, 22 and trunk were changed. Some of the namenode logic that depends on layout version is broken because of this. Read the comment for more description.

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