[jira] [Commented] (HBASE-3945) Load balancer shouldn't move the same region in two consective balancing actions

["Ted Yu (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/HBASE-3945?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13044001#comment-13044001 ] 

Ted Yu commented on HBASE-3945:
-------------------------------

Motivation for this JIRA was to reduce disruption to long running compactions.
Since the decision of compaction is solely made by region server, it is not easy for load balancer to know the exact timing and duration of compactions.
Shall we introduce new parameter, e.g. hbase.balancer.inert.duration, specifying the duration of keeping region on the same region server ?

> Load balancer shouldn't move the same region in two consective balancing actions
> --------------------------------------------------------------------------------
>
>                 Key: HBASE-3945
>                 URL: https://issues.apache.org/jira/browse/HBASE-3945
>             Project: HBase
>          Issue Type: Improvement
>            Reporter: Ted Yu
>
> Keeping a region on the same region server would give good stability for active scanners.
> We shouldn't reassign the same region in two successive calls to balanceCluster().

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