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https://issues.apache.org/jira/browse/HBASE-12975?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14341253#comment-14341253
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Rajeshbabu Chintaguntla commented on HBASE-12975:
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bq. Since I'm working on a patch I'm going to take this Rajeshbabu
Chintaguntla, but please let me know if you plan on actively working on it
right away, we can figure something out.
You can continue [~apurtell]. I can help you by parallely testing and let you
know any pain points to make use for local indexes case in Phoenix.
Thanks.
> Supportable SplitTransaction and RegionMergeTransaction interfaces
> ------------------------------------------------------------------
>
> Key: HBASE-12975
> URL: https://issues.apache.org/jira/browse/HBASE-12975
> Project: HBase
> Issue Type: Improvement
> Reporter: Rajeshbabu Chintaguntla
> Assignee: Andrew Purtell
> Fix For: 2.0.0, 1.1.0
>
> Attachments: HBASE-12975.patch, HBASE-12975.patch
>
>
> Making SplitTransaction, RegionMergeTransaction limited private is required
> to support local indexing feature in Phoenix to ensure regions colocation.
> We can ensure region split, regions merge in the coprocessors in few method
> calls without touching internals like creating zk's, file layout changes or
> assignments.
> 1) stepsBeforePONR, stepsAfterPONR we can ensure split.
> 2) meta entries can pass through coprocessors to atomically update with the
> normal split/merge.
> 3) rollback on failure.
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