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https://issues.apache.org/jira/browse/HDFS-17052?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Hualong Zhang updated HDFS-17052:
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Attachment: failed reconstruction ec in same rack.png
> Erasure coding reconstruction failed when num of storageType rack NOT enough
> ----------------------------------------------------------------------------
>
> Key: HDFS-17052
> URL: https://issues.apache.org/jira/browse/HDFS-17052
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: ec
> Affects Versions: 3.3.4
> Reporter: Hualong Zhang
> Assignee: Hualong Zhang
> Priority: Major
> Labels: pull-request-available
> Attachments: failed reconstruction ec in same rack.png, write ec in
> same rack.png
>
>
> When writing EC data, if the number of racks matching the storageType is
> insufficient, more than one block are allowed to be written to the same rack
> !write ec in same rack.png!
> However, during EC block recovery, it is not possible to recover on the same
> rack, which deviates from the expected behavior.
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