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From "Enis Soztutar (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-13212) Procedure V2 - master Create/Modify/Delete namespace
Date Wed, 12 Aug 2015 08:44:46 GMT

    [ https://issues.apache.org/jira/browse/HBASE-13212?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14693146#comment-14693146

Enis Soztutar commented on HBASE-13212:

bq. I don't think the table operation should have to take the NS lock. that can be done down
at the scheduling level (procedure queue)
Sure. If we change the per-table level queue into being a hierarchical queue of NS -> table,
then it would work. 
bq. Note: due to low frequency of deleting namespace, the chance that we see this race condition
is very low.
Agreed. It is not high priority. 

> Procedure V2 - master Create/Modify/Delete namespace
> ----------------------------------------------------
>                 Key: HBASE-13212
>                 URL: https://issues.apache.org/jira/browse/HBASE-13212
>             Project: HBase
>          Issue Type: Sub-task
>          Components: master
>    Affects Versions: 2.0.0
>            Reporter: Stephen Yuan Jiang
>            Assignee: Stephen Yuan Jiang
>              Labels: reliability
>         Attachments: HBASE-13212.v1-master.patch, HBASE-13212.v2-master.patch
>   Original Estimate: 168h
>  Remaining Estimate: 168h
> master side, part of HBASE-12439
> starts up the procedure executor on the master
> and replaces the create/modify/delete namespace handlers with the procedure version.

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