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https://issues.apache.org/jira/browse/HBASE-15468?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15196497#comment-15196497
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Jonathan Hsieh commented on HBASE-15468:
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Hi, Jack. This is generally a question for the mailing list --
[email protected]. You basically need to trigger the hbase balancer. It
runs periodically but can also be triggered by going into the hbase shell and
running the 'balancer' command.
> why Hbase only split regions in one RegionServer
> ------------------------------------------------
>
> Key: HBASE-15468
> URL: https://issues.apache.org/jira/browse/HBASE-15468
> Project: HBase
> Issue Type: Brainstorming
> Components: Balancer
> Affects Versions: 1.0.2
> Reporter: Jack Wang
> Priority: Minor
> Original Estimate: 168h
> Remaining Estimate: 168h
>
> I was writing 300GiB data to my Hbase table user_info, the table I created by
> default having only one region. When the writing was going I saw one region
> became two regions and more late on it became 8 regions. But my confusion is
> that the 8 regions were kept in the same RegionServer. Why Hbase didn't split
> the regions to different RegionServer. btw, I had 10 physical RegionsServers
> in my Hbase cluster, and the region size I set is 20GiB, Thanks!
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