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From "Shashikant Banerjee (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-12742) Add support for KSM --expunge command
Date Mon, 12 Feb 2018 12:01:00 GMT

    [ https://issues.apache.org/jira/browse/HDFS-12742?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16360651#comment-16360651
] 

Shashikant Banerjee commented on HDFS-12742:
--------------------------------------------

patch v3 implements an API to get the list of containers owned by a KSM and using this API
, it deletes all the containers owned by this kSM to delete all data when KSM -expunge command
is invoked.

> Add support for KSM --expunge command
> -------------------------------------
>
>                 Key: HDFS-12742
>                 URL: https://issues.apache.org/jira/browse/HDFS-12742
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>    Affects Versions: HDFS-7240
>            Reporter: Shashikant Banerjee
>            Assignee: Shashikant Banerjee
>            Priority: Major
>             Fix For: HDFS-7240
>
>         Attachments: HDFS-12742-HDFS-7240.001.patch, HDFS-12742-HDFS-7240.002.patch,
HDFS-12742-HDFS-7240.003.patch
>
>
> KSM --expunge will delete all the data from the data nodes for all the keys in the KSM
db. 
> User will have no control over the deletion.



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