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https://issues.apache.org/jira/browse/HDFS-17052?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17734104#comment-17734104
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ASF GitHub Bot commented on HDFS-17052:
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zhtttylz opened a new pull request, #5759:
URL: https://github.com/apache/hadoop/pull/5759
JIRA: HDFS-17052. Erasure coding reconstruction failed when num of
storageType rack NOT enough
> 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
>
> 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
> 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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