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https://issues.apache.org/jira/browse/HBASE-17149?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15783521#comment-15783521
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stack commented on HBASE-17149:
-------------------------------
I pushed the nice cleanup addendum to master branch. Thanks [~syuanjiang]
> Procedure V2 - Fix nonce submission to avoid unnecessary calling coprocessor
> multiple times
> -------------------------------------------------------------------------------------------
>
> Key: HBASE-17149
> URL: https://issues.apache.org/jira/browse/HBASE-17149
> Project: HBase
> Issue Type: Sub-task
> Components: proc-v2
> Affects Versions: 2.0.0, 1.3.0, 1.4.0, 1.1.7, 1.2.4
> Reporter: Matteo Bertozzi
> Assignee: Matteo Bertozzi
> Fix For: 2.0.0
>
> Attachments: 17149.branch-1.incomplete.txt,
> HBASE-17149-addendum.v1-master.patch, HBASE-17149.master.001.patch,
> HBASE-17149.master.002.patch, HBASE-17149.master.002.patch,
> HBASE-17149.master.002.patch, HBASE-17149.master.003.patch,
> HBASE-17149.v1-branch-1.patch, nonce.patch
>
>
> instead of having all the logic in submitProcedure(), split in
> registerNonce() + submitProcedure().
> In this case we can avoid calling the coprocessor twice and having a clean
> submit logic knowing that there will only be one submission.
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