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https://issues.apache.org/jira/browse/HDFS-2752?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13180953#comment-13180953
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Eli Collins commented on HDFS-2752:
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Sorry for the lack of context, this came up in HDFS-2709. With multiple shared
edits dirs a failure to read from one of them will prevent the edit log tailer
from catching up, ie users are currently *less reliable* with multiple shared
dirs. Until we know we've got it working reasonably well (ie have tests for the
common scenarios) it doesn't seem like we should let people shoot themselves in
the foot. And while nice to have, it doesn't seem like multiple shared dir
support should block an initial release. Agree? Perhaps warn loudly instead
of exit?
> HA: exit if multiple shared dirs are configured
> -----------------------------------------------
>
> Key: HDFS-2752
> URL: https://issues.apache.org/jira/browse/HDFS-2752
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Components: ha
> Affects Versions: HA branch (HDFS-1623)
> Reporter: Eli Collins
> Assignee: Eli Collins
>
> We don't support multiple shared edits dirs, we should fail to start with an
> error in this case.
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