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https://issues.apache.org/jira/browse/HBASE-1019?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12650040#action_12650040
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Andrew Purtell commented on HBASE-1019:
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To facilitate this an estimate of heap required to host each region (e.g. store
file index load) should be communicated to the master. Should be a new or
extension of existing HMsg to avoid polluting HRI.
> Master should reassign regions away from regionservers under heap stress
> ------------------------------------------------------------------------
>
> Key: HBASE-1019
> URL: https://issues.apache.org/jira/browse/HBASE-1019
> Project: Hadoop HBase
> Issue Type: Improvement
> Components: master, regionserver
> Reporter: Andrew Purtell
> Fix For: 0.19.0
>
>
> Once the changes for HBASE-1018 go in, the master should reassign regions
> away from regionservers that indicate heap stress to those that do not.
> Reassignment activity must be smart enough not to overload remaining
> regionservers.
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