Andrew Kyle Purtell created HBASE-25836:
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Summary: 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
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 or MERGING). We should get to the heart of
the matter and filter out all regions that are not in OPEN or OPENING state.
Only regions open (or opening) on the cluster are of interest to balancing.
Regions in all other states can be expected to not be of interest until at
least the next balancer iteration.
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