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https://issues.apache.org/jira/browse/HDFS-12235?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16147261#comment-16147261
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Weiwei Yang commented on HDFS-12235:
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Hi [~yuanbo]
Thanks for the updated patch, your change mostly makes sense but since this is
the last piece of key-deletion, we should be able to do end-to-end test in UT.
Since you are busy recently, I am taking this over and will work on a new patch
with such tests. I will also do some real cluster testing with this. This JIRA
will credit to you as well.
Thanks a lot.
> Ozone: DeleteKey-3: KSM SCM block deletion message and ACK interactions
> -----------------------------------------------------------------------
>
> Key: HDFS-12235
> URL: https://issues.apache.org/jira/browse/HDFS-12235
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Components: ozone
> Affects Versions: HDFS-7240
> Reporter: Weiwei Yang
> Assignee: Yuanbo Liu
> Attachments: HDFS-12235-HDFS-7240.001.patch,
> HDFS-12235-HDFS-7240.002.patch, HDFS-12235-HDFS-7240.003.patch
>
>
> KSM and SCM interaction for delete key operation, both KSM and SCM stores key
> state info in a backlog, KSM needs to scan this log and send block-deletion
> command to SCM, once SCM is fully aware of the message, KSM removes the key
> completely from namespace. See more from the design doc under HDFS-11922,
> this is task break down 2.
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