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https://issues.apache.org/jira/browse/HDFS-5535?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13909553#comment-13909553
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Tsz Wo (Nicholas), SZE commented on HDFS-5535:
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> ... RollingUpgrade is a little big change, so does that enough only run unit
> tests to test it? or you'd already did some manual testing on the dev cluster?
Yes, we will post a test plan which includes manual tests.
> Does this patch based on trunk? I can do some verification on my testing
> cluster.
The patch does apply to trunk. It would be great if you could help testing it.
Thank you in advance!
> 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
>
>
> 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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