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https://issues.apache.org/jira/browse/HADOOP-3681?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12609775#action_12609775
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Tsz Wo (Nicholas), SZE commented on HADOOP-3681:
------------------------------------------------
Since the length of blk_4878955496501003583 is 0, could we let Fsck delete the
block? Then, namenode.complete(...) will return normally.
Although this does not fix the bug, it provides an option for system recovery.
> Infinite loop in dfs close
> --------------------------
>
> Key: HADOOP-3681
> URL: https://issues.apache.org/jira/browse/HADOOP-3681
> Project: Hadoop Core
> Issue Type: Bug
> Components: dfs
> Affects Versions: 0.17.0
> Reporter: Koji Noguchi
> Attachments: H-3681-jstack.txt
>
>
> We had dfsClient -put hang outputting
> {noformat}
> 2008-06-28 10:05:12,595 WARN org.apache.hadoop.dfs.DFSClient: DataStreamer
> Exception: java.net.SocketTimeoutException:
> timed out waiting for rpc response
> 2008-06-28 10:05:12,595 WARN org.apache.hadoop.dfs.DFSClient: Error Recovery
> for block null bad datanode[0]
> 2008-06-28 10:05:51,067 INFO org.apache.hadoop.dfs.DFSClient: Could not
> complete file
> /_temporary/_task_200806262325_4136_r_000408_0/part-00408
> retrying...
> 2008-06-28 10:05:52,898 INFO org.apache.hadoop.dfs.DFSClient: Could not
> complete file
> /_temporary/_task_200806262325_4136_r_000408_0/part-00408
> retrying...
> 2008-06-28 10:05:54,893 INFO org.apache.hadoop.dfs.DFSClient: Could not
> complete file
> /_temporary/_task_200806262325_4136_r_000408_0/part-00408
> retrying...
> 2008-06-28 10:05:56,920 INFO org.apache.hadoop.dfs.DFSClient: Could not
> complete file
> /_temporary/_task_200806262325_4136_r_000408_0/part-00408
> retrying...
> 2008-06-28 10:05:57,765 INFO org.apache.hadoop.dfs.DFSClient: Could not
> complete file
> /_temporary/_task_200806262325_4136_r_000408_0/part-00408
> retrying...
> 2008-06-28 10:05:58,199 INFO org.apache.hadoop.dfs.DFSClient: Could not
> complete file
> /_temporary/_task_200806262325_4136_r_000408_0/part-00408
> retrying...
> [repeats forever]
> {noformat}
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