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From "Todd Lipcon (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HDFS-259) Remove intentionally corrupt 0.13 directory layout creation
Date Thu, 21 Oct 2010 06:52:16 GMT

    [ https://issues.apache.org/jira/browse/HDFS-259?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12923348#action_12923348
] 

Todd Lipcon commented on HDFS-259:
----------------------------------

Thanks for the feedback, Konst. I will add some code to check for an old version and explain
that they must upgrade to 0.20 first as a stepping stone, if you think it's necessary.

I also realized there are some tests that need a little update. I'll upload a new patch with
these changes in the next couple days.

> Remove intentionally corrupt 0.13 directory layout creation
> -----------------------------------------------------------
>
>                 Key: HDFS-259
>                 URL: https://issues.apache.org/jira/browse/HDFS-259
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>    Affects Versions: 0.22.0
>            Reporter: Todd Lipcon
>            Assignee: Todd Lipcon
>         Attachments: hdfs-259.txt
>
>
> Given that 0.13 is incredibly old at this point, I think the likelihood of anyone trying
to start an 0.20+ namenode on an 0.13 directly layout is essentially nil. The intentionally-corrupt
"${dfs.name.dir}/image/" directory just serves to confuse new users at this point, so I propose
removing it.
> If no one objects, I'll submit a patch. If there are objections, I propose at least adding
a README explaining its purpose (same text as in the corrupt fsimage file)

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