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https://issues.apache.org/jira/browse/HDFS-12000?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Chen Liang updated HDFS-12000:
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Attachment: HDFS-12000-HDFS-7240.007.patch
update v007 patch. rewrote many places as lots of code has changed since
previous patch. post v007 patch to trigger Jenkins, still doing more testing
locally.
Please note that this is still work in progress. This patch only focuses on
server side. Specifically, this patch adds versioning to blocks and persistent
the information of the older versions to meta store. But from client side, the
read and write are hidden from versioning i.e. write still always rewrites the
whole key, and read still always reads only the most recently committed version
of the key. Will follow up with another JIRA for more read/write change.
> Ozone: Container : Add key versioning support-1
> -----------------------------------------------
>
> Key: HDFS-12000
> URL: https://issues.apache.org/jira/browse/HDFS-12000
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Components: ozone
> Affects Versions: HDFS-7240
> Reporter: Anu Engineer
> Assignee: Chen Liang
> Labels: OzonePostMerge
> Attachments: HDFS-12000-HDFS-7240.001.patch,
> HDFS-12000-HDFS-7240.002.patch, HDFS-12000-HDFS-7240.003.patch,
> HDFS-12000-HDFS-7240.004.patch, HDFS-12000-HDFS-7240.005.patch,
> HDFS-12000-HDFS-7240.007.patch, OzoneVersion.001.pdf
>
>
> The rest interface of ozone supports versioning of keys. This support comes
> from the containers and how chunks are managed to support this feature. This
> JIRA tracks that feature. Will post a detailed design doc so that we can talk
> about this feature.
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