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Posted to hdfs-issues@hadoop.apache.org by "Suresh Srinivas (JIRA)" <ji...@apache.org> on 2011/09/03 01:04:10 UTC
[jira] [Commented] (HDFS-724) Pipeline close hangs if one of the
datanode is not responsive.
[ https://issues.apache.org/jira/browse/HDFS-724?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13096454#comment-13096454 ]
Suresh Srinivas commented on HDFS-724:
--------------------------------------
This patch does not compile for me.
> 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: 0.20-append, 0.21.0
>
> Attachments: HDFS-724.20-security.1.patch, h724_20091021.patch, hbAckReply.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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