[jira] [Resolved] (HDFS-5848) Add rolling upgrade infomation to heartbeat response

["Tsz Wo (Nicholas), SZE (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/HDFS-5848?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Tsz Wo (Nicholas), SZE resolved HDFS-5848.
------------------------------------------

       Resolution: Fixed
    Fix Version/s: HDFS-5535 (Rolling upgrades)
     Hadoop Flags: Reviewed

Thanks Vinay and Jing for reviewing the patch.

I have committed this.

> 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
>             Fix For: HDFS-5535 (Rolling upgrades)
>
>         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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