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https://issues.apache.org/jira/browse/HDFS-724?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Hairong Kuang updated HDFS-724:
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Attachment: stuckWriteAppend20.patch
I plan to pull in this fix to append20 branch in order to fix HBASE-2861.
> 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
>
> Attachments: h724_20091021.patch, pipelineHeartbeat.patch,
> pipelineHeartbeat1.patch, pipelineHeartbeat2.patch, stuckWriteAppend20.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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