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From "Tsz Wo (Nicholas), SZE (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-5535) Umbrella jira for improved HDFS rolling upgrades
Date Tue, 04 Mar 2014 23:59:51 GMT

    [ https://issues.apache.org/jira/browse/HDFS-5535?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13920252#comment-13920252
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Tsz Wo (Nicholas), SZE commented on HDFS-5535:
----------------------------------------------

I have merged HDFS-5535 branch back to trunk.  Thanks everyone who has worked on this!

> Umbrella jira for improved HDFS rolling upgrades
> ------------------------------------------------
>
>                 Key: HDFS-5535
>                 URL: https://issues.apache.org/jira/browse/HDFS-5535
>             Project: Hadoop HDFS
>          Issue Type: New Feature
>          Components: datanode, ha, hdfs-client, namenode
>    Affects Versions: 3.0.0, 2.2.0
>            Reporter: Nathan Roberts
>         Attachments: HDFSRollingUpgradesHighLevelDesign.pdf, HDFSRollingUpgradesHighLevelDesign.v2.pdf,
h5535_20140219.patch, h5535_20140220-1554.patch, h5535_20140220b.patch, h5535_20140221-2031.patch,
h5535_20140224-1931.patch, h5535_20140225-1225.patch, h5535_20140226-1328.patch, h5535_20140226-1911.patch,
h5535_20140227-1239.patch, h5535_20140228-1714.patch, h5535_20140304-1138.patch, hdfs-5535-test-plan.pdf
>
>
> In order to roll a new HDFS release through a large cluster quickly and safely, a few
enhancements are needed in HDFS. An initial High level design document will be attached to
this jira, and sub-jiras will itemize the individual tasks.



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