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https://issues.apache.org/jira/browse/HDFS-12989?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16375397#comment-16375397
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Mandy Martin commented on HDFS-12989:
-------------------------------------
Mandy Martin
> Ozone: Container : Add key versioning support-4
> -----------------------------------------------
>
> Key: HDFS-12989
> URL: https://issues.apache.org/jira/browse/HDFS-12989
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Components: ozone
> Reporter: Chen Liang
> Assignee: Chen Liang
> Priority: Major
> Attachments: HDFS-12989-HDFS-7240.001.patch
>
>
> After HDFS-12925 and HDFS-12954 get added, every key write call will generate
> a new version, and we will be able to read any specific version of a key.
> This JIRA adds a new newKeyReader API {{newKeyReaderWithVersion}} to
> {{StorageHandler}}. This method takes an extra version field such that the
> caller can read any older version. This JIRA also adds all the other changes
> needed.
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