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https://issues.apache.org/jira/browse/HDFS-2173?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15289852#comment-15289852
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Andras Bokor commented on HDFS-2173:
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Thanks a lot [~andrew.wang].
> saveNamespace should not throw IOE when only one storage directory fails to
> write VERSION file
> ----------------------------------------------------------------------------------------------
>
> Key: HDFS-2173
> URL: https://issues.apache.org/jira/browse/HDFS-2173
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Affects Versions: Edit log branch (HDFS-1073), 0.23.0
> Reporter: Todd Lipcon
> Assignee: Andras Bokor
> Fix For: 2.9.0
>
> Attachments: HDFS-2173.01.patch, HDFS-2173.02.patch,
> HDFS-2173.02.patch, HDFS-2173.03.patch, HDFS-2173.04.patch
>
>
> This JIRA tracks a TODO in TestSaveNamespace. Currently, if, while writing
> the VERSION files in the storage directories, one of the directories fails,
> the entire operation throws IOE. This is unnecessary -- instead, just that
> directory should be marked as failed.
> This is targeted to be fixed _after_ HDFS-1073 is merged to trunk, since it
> does not ever dataloss, and would rarely occur in practice (the dir would
> have to fail between writing the fsimage file and writing VERSION)
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