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Posted to hdfs-issues@hadoop.apache.org by "Jing Zhao (JIRA)" <ji...@apache.org> on 2014/02/01 01:34:10 UTC
[jira] [Commented] (HDFS-5848) Add rolling upgrade infomation to
heartbeat response
[ https://issues.apache.org/jira/browse/HDFS-5848?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13888356#comment-13888356 ]
Jing Zhao commented on HDFS-5848:
---------------------------------
+1 Patch looks good.
> Add rolling upgrade infomation to heartbeat response
> ----------------------------------------------------
>
> Key: HDFS-5848
> URL: https://issues.apache.org/jira/browse/HDFS-5848
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Components: namenode
> Reporter: Tsz Wo (Nicholas), SZE
> Assignee: Tsz Wo (Nicholas), SZE
> Attachments: h5848_20130130.patch, h5848_20130130b.patch, h5848_20140131.patch
>
>
> When rolling upgrade is in progress, NN should inform datanodes via heartbeat responses so that datanode should create hardlinks when deleting blocks. We only change heartbeat response here. The datanode change will be done in a separated JIRA.
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