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https://issues.apache.org/jira/browse/HDFS-724?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12798993#action_12798993
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Hudson commented on HDFS-724:
-----------------------------
Integrated in Hdfs-Patch-h2.grid.sp2.yahoo.net #94 (See
[http://hudson.zones.apache.org/hudson/job/Hdfs-Patch-h2.grid.sp2.yahoo.net/94/])
> Pipeline close hangs if one of the datanode is not responsive.
> --------------------------------------------------------------
>
> Key: HDFS-724
> URL: https://issues.apache.org/jira/browse/HDFS-724
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: data-node, hdfs client
> Affects Versions: 0.21.0
> Reporter: Tsz Wo (Nicholas), SZE
> Assignee: Hairong Kuang
> Priority: Blocker
> Fix For: 0.21.0, 0.22.0
>
> Attachments: h724_20091021.patch, pipelineHeartbeat.patch,
> pipelineHeartbeat1.patch, pipelineHeartbeat2.patch
>
>
> In the new pipeline design, pipeline close is implemented by sending an
> additional empty packet. If one of the datanode does not response to this
> empty packet, the pipeline hangs. It seems that there is no timeout.
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