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https://issues.apache.org/jira/browse/HDFS-9232?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14955039#comment-14955039
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Kihwal Lee commented on HDFS-9232:
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It seems related to HDFS-8344 or may even be a dupe.
> Shouldn't start block recovery if block has no enough replicas
> --------------------------------------------------------------
>
> Key: HDFS-9232
> URL: https://issues.apache.org/jira/browse/HDFS-9232
> Project: Hadoop HDFS
> Issue Type: Bug
> Reporter: Walter Su
> Assignee: Walter Su
> Attachments: HDFS-9232.01.patch
>
>
> from HDFS-8406:
> {quote}
> Before primary DN calls commitBlockSynchronization, it synchronized 2 RBW
> replicas, and make them finalized. Then primary DN calls
> commitBlockSynchronization, to complete the lastBlock and close the file. The
> question is, your dfs.namenode.replication.min is 3, the last block can't be
> completed. NameNode shouldn't issue blockRecovery in the first place because
> lastBlock can't be completed anyway.
> {quote}
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