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https://issues.apache.org/jira/browse/HDFS-13062?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16344352#comment-16344352
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Hanisha Koneru commented on HDFS-13062:
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In {{getLogDir()}}, before adding a new dir to {{localDir}}, we should check
that its not a duplicate entry. This can happen if the journal dirs for 2
namespaces are set separately but to the same location.
> Provide support for JN to use separate journal disk per namespace
> -----------------------------------------------------------------
>
> Key: HDFS-13062
> URL: https://issues.apache.org/jira/browse/HDFS-13062
> Project: Hadoop HDFS
> Issue Type: Improvement
> Reporter: Bharat Viswanadham
> Assignee: Bharat Viswanadham
> Priority: Major
> Attachments: HDFS-13062.00.patch, HDFS-13062.01.patch,
> HDFS-13062.02.patch, HDFS-13062.03.patch
>
>
> In Federated HA setup, provide support for separate journal disk for each
> namespace.
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