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From "Weiwei Yang (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HDFS-12235) Ozone: DeleteKey-3: KSM SCM block deletion message and ACK interactions
Date Mon, 11 Sep 2017 03:38:00 GMT

     [ https://issues.apache.org/jira/browse/HDFS-12235?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

Weiwei Yang updated HDFS-12235:
    Attachment: HDFS-12235-HDFS-7240.012.patch

> 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: Weiwei Yang
>              Labels: ozoneMerge
>         Attachments: HDFS-12235-HDFS-7240.001.patch, HDFS-12235-HDFS-7240.002.patch,
HDFS-12235-HDFS-7240.003.patch, HDFS-12235-HDFS-7240.004.patch, HDFS-12235-HDFS-7240.005.patch,
HDFS-12235-HDFS-7240.006.patch, HDFS-12235-HDFS-7240.007.patch, HDFS-12235-HDFS-7240.008.patch,
HDFS-12235-HDFS-7240.009.patch, HDFS-12235-HDFS-7240.010.patch, HDFS-12235-HDFS-7240.011.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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