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https://issues.apache.org/jira/browse/HDFS-9959?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15194220#comment-15194220
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Tsz Wo Nicholas Sze commented on HDFS-9959:
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For recovering blk_1073741825, we may search other logs for it to find out all
the locations. Do we really need this new message?
BTW, the new message is printed within the write lock. So, it has performance
penalty.
> add log when block removed from last live datanode
> --------------------------------------------------
>
> Key: HDFS-9959
> URL: https://issues.apache.org/jira/browse/HDFS-9959
> Project: Hadoop HDFS
> Issue Type: Improvement
> Reporter: yunjiong zhao
> Assignee: yunjiong zhao
> Priority: Minor
> Attachments: HDFS-9959.patch
>
>
> Add logs like "BLOCK* No live nodes contain block blk_1073741825_1001, last
> datanode contain it is node: 127.0.0.1:65341" in BlockStateChange should help
> to identify which datanode should be fixed first to recover missing blocks.
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