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From "Weiwei Yang (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-12282) Ozone: DeleteKey-4: Block delete via HB between SCM and DN
Date Fri, 25 Aug 2017 12:57:00 GMT

    [ https://issues.apache.org/jira/browse/HDFS-12282?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16141577#comment-16141577

Weiwei Yang commented on HDFS-12282:

Hi [~anu] please help to review, thanks.

> Ozone: DeleteKey-4: Block delete via HB between SCM and DN
> ----------------------------------------------------------
>                 Key: HDFS-12282
>                 URL: https://issues.apache.org/jira/browse/HDFS-12282
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>          Components: datanode, ozone, scm
>            Reporter: Weiwei Yang
>            Assignee: Weiwei Yang
>         Attachments: Block delete via HB between SCM and DN.png, Block delete via HB
between SCM and DN v2.png, HDFS-12282-HDFS-7240.001.patch, HDFS-12282-HDFS-7240.002.patch,
HDFS-12282-HDFS-7240.003.patch, HDFS-12282-HDFS-7240.004.patch, HDFS-12282-HDFS-7240.005.patch,
> This is the task 3 in the design doc, implements the SCM to datanode interactions. Including
> # SCM sends block deletion message via HB to datanode
> # datanode changes block state to deleting when processes the HB response
> # datanode sends deletion ACKs back to SCM
> # SCM handles ACKs and removes blocks in DB

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