Xiaolin Ha created HBASE-25621:
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Summary: Balancer should check region plan source to avoid
misplace region groups
Key: HBASE-25621
URL: https://issues.apache.org/jira/browse/HBASE-25621
Project: HBase
Issue Type: Improvement
Components: Balancer
Reporter: Xiaolin Ha
Assignee: Xiaolin Ha
Currently, balancer generates all group plans firstly, and then execute overall
plans. When there are table regions movement between groups but after the
groups plans generating and before executing, balancer may misplace the region
to the old group. But this is not serious problem, next balancer will fix it.
If we add a check before executing balance plans, we can avoid the problem.
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