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https://issues.apache.org/jira/browse/HDDS-1266?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16820160#comment-16820160
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Anu Engineer commented on HDDS-1266:
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[~linyiqun] Thanks for the feedback and please keep it coming. I will update
the design document based on your feedback as well as add a planner User
experience document soon.
> [Ozone upgrade] Support Upgrading HDFS clusters to use Ozone
> ------------------------------------------------------------
>
> Key: HDDS-1266
> URL: https://issues.apache.org/jira/browse/HDDS-1266
> Project: Hadoop Distributed Data Store
> Issue Type: New Feature
> Reporter: Anu Engineer
> Assignee: Anu Engineer
> Priority: Major
> Attachments: InPlaceUpgradesForOzone.pdf
>
>
> This is the master JIRA to support upgrading existing HDFS clusters to have
> Ozone running concurrently. One of the requirements is that we support
> upgrading from HDFS to Ozone, without a full data copy. This requirement is
> called "In Place upgrade", the end result of such an upgrade would be to have
> the HDFS data appear in Ozone as if Ozone has taken a snap-shot of the HDFS
> data. Once upgrade is complete, Ozone and HDFS will act as independent
> systems. I will post a design document soon.
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