[HBASE-26310] Repro balancer behavior during iterations

• Type: Sub-task
• Status: Resolved
• Priority: Major
• Resolution: Implemented
• Component/s: Balancer, test
• Assignee: Clara Xiong
• Reporter: Clara Xiong
• Created: 30/Sep/21 03:15
• Updated: 03/Nov/21 02:34
• Resolved: 03/Nov/21 02:32

Description

All existing tests expect balancer to complete in one run. This misses temporary imbalance or inefficiency during iterations on large clusters. Recently we found such issues for cohosted region distribution. To repro the problem and validate fixes, we need a test to simulate multiple iterations.

Issue Links

• is a child of: HBASE-25697 StochasticBalancer improvement for large scale clusters
• links to: GitHub Pull Request #3711