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From "Tsz Wo (Nicholas), SZE (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HDFS-5848) Add rolling upgrade infomation to heartbeat response
Date Thu, 30 Jan 2014 00:54:12 GMT

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

Tsz Wo (Nicholas), SZE updated HDFS-5848:
-----------------------------------------

    Description: 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.  (was: When rolling
upgrade is in progress, NN should inform datanodes via heartbeat responses so that datanode
should create hardlinks when deleting blocks.  We need to add a new DatanodeCommand here.
 The datanode change will be done in a separated JIRA.)
        Summary: Add rolling upgrade infomation to heartbeat response  (was: Add a DatanodeCommand
to inform datanodes that rolling upgrade is in progress)

> 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
>
>
> 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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