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https://issues.apache.org/jira/browse/HDFS-11729?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Weiwei Yang updated HDFS-11729:
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Attachment: HDFS-11729.001.patch
> Improve NNStorageRetentionManager failure handling.
> ---------------------------------------------------
>
> Key: HDFS-11729
> URL: https://issues.apache.org/jira/browse/HDFS-11729
> Project: Hadoop HDFS
> Issue Type: Bug
> Reporter: Kihwal Lee
> Attachments: HDFS-11729.001.patch
>
>
> Currently {{NNStorageRetentionManager}} will simply skip a storage directory
> if a problem is detected. Since checkpoint saving does not go through the
> same set of checks, this can lead to a space exhaustion seen in HDFS-11714.
> Instead of ignoring errors, it should handle it properly. One potential
> improvement is to catch the exception and report the storage directory
> failure using {{NNStorage.reportErrorsOnDirectories()}}.
> {{attemptRestoreRemovedStorage()}} will need extra checks. E.g. existence of
> a VERSION file.
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