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https://issues.apache.org/jira/browse/HDFS-11714?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15989212#comment-15989212
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Daryn Sharp commented on HDFS-11714:
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In FSImage, please correct the inventive word: "tirggered". :) It would be
nice if initNewDirs was encapsulated in FSImage since it's not something the
servlet should need to know about but I'm not familiar enough with the code to
know what will break. Up to you.
And we need the branch-2 patch.
> Newly added NN storage directory won't get initialized and cause space
> exhaustion
> ---------------------------------------------------------------------------------
>
> Key: HDFS-11714
> URL: https://issues.apache.org/jira/browse/HDFS-11714
> Project: Hadoop HDFS
> Issue Type: Bug
> Affects Versions: 2.7.3
> Reporter: Kihwal Lee
> Assignee: Kihwal Lee
> Priority: Critical
> Attachments: HDFS-11714.trunk.patch
>
>
> When an empty namenode storage directory is detected on normal NN startup, it
> may not be fully initialized. The new directory is still part of "in-service"
> NNStrage and when a checkpoint image is uploaded, a copy will also be written
> there. However, the retention manager won't be able to purge old files since
> it is lacking a VERSION file. This causes fsimages to pile up in the
> directory. With a big name space, the disk will be filled in the order of
> days or weeks.
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