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From "Colin Patrick McCabe (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-5535) Umbrella jira for improved HDFS rolling upgrades
Date Wed, 26 Feb 2014 00:22:21 GMT

    [ https://issues.apache.org/jira/browse/HDFS-5535?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13912309#comment-13912309
] 

Colin Patrick McCabe commented on HDFS-5535:
--------------------------------------------

[~stack]: I think we need to do HDFS-4246, but for the DFSInputStrean (HDFS-4246 was for the
output stream).

> 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, h5535_20140219.patch, h5535_20140220-1554.patch,
h5535_20140220b.patch, h5535_20140221-2031.patch, h5535_20140224-1931.patch, h5535_20140225-1225.patch
>
>
> 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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