[jira] [Commented] (HBASE-25836) RegionStates#getAssignmentsForBalancer should only care about OPEN or OPENING regions

["Hudson (Jira)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/HBASE-25836?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17338994#comment-17338994 ] 

Hudson commented on HBASE-25836:
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Results for branch master
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> RegionStates#getAssignmentsForBalancer should only care about OPEN or OPENING regions
> -------------------------------------------------------------------------------------
>
>                 Key: HBASE-25836
>                 URL: https://issues.apache.org/jira/browse/HBASE-25836
>             Project: HBase
>          Issue Type: Sub-task
>            Reporter: Andrew Kyle Purtell
>            Assignee: Andrew Kyle Purtell
>            Priority: Major
>             Fix For: 3.0.0-alpha-1, 2.5.0, 2.4.3
>
>
> RegionStates#getAssignmentsForBalancer is used by the HMaster to collect all regions of interest to the balancer for the next chore iteration. We check if a table is in disabled state to exclude regions that will not be of interest (because disabled regions are or will be offline) or are in a state where they shouldn't be mutated (like SPLITTING ). The current checks do not get to the point so are not comprehensive. 
> We should filter out all regions that are not in OPEN or OPENING state when building the set of interesting regions for the balancer to consider. Only regions open (or opening) on the cluster are of interest to balancing calculations. Regions in all other states can be expected to not be of interest -- either offline (OFFLINE, or FAILED_*), not subject to balancer decisions now (SPLITTING, SPLITTING_NEW, MERGING, MERGING_NEW), or will be offline shortly (CLOSING) -- until at least the next chore iteration. 



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