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https://issues.apache.org/jira/browse/HBASE-28438?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17864844#comment-17864844
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Rushabh Shah commented on HBASE-28438:
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Hi [~rajeshbabu]
I am back from my time off. I will review the design doc in couple of days.
Have you started working on the POC? I can help you with the implementation if
needed. Thank you !
> Add support splitting region into multiple regions(more than 2)
> ---------------------------------------------------------------
>
> Key: HBASE-28438
> URL: https://issues.apache.org/jira/browse/HBASE-28438
> Project: HBase
> Issue Type: Improvement
> Reporter: Rajeshbabu Chintaguntla
> Assignee: Rajeshbabu Chintaguntla
> Priority: Major
>
> We have a requirement of splitting one region into multiple hundreds of
> regions at a time to distribute loading hot data. To do that we need split a
> region and wait for the completion of it and then again split the two regions
> etc..which is time consuming activity.
> Would be better to support splitting region into multiple regions more than
> two so that in single operation we can split the region.
> Todo that we need to take care
> 1)Supporting admin APIs to take multiple split keys
> 2)Implement new procedure to create new regions, creating meta entries and
> udpating them to meta
> 3) close the parent region and open split regions.
> 4) Update the compaction of post split and readers also to use the portion
> store file reader based on the range to scan than half store reader.
> 5) make sure the catalog jonitor also cleaning the parent regions when there
> are all the regions split properly.
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