Ted Yu created HBASE-15249:
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Summary: Provide lower bound on number of regions in region
normalizer for pre-split tables
Key: HBASE-15249
URL: https://issues.apache.org/jira/browse/HBASE-15249
Project: HBase
Issue Type: Bug
Reporter: Ted Yu
Assignee: Ted Yu
AMS (Ambari Metrics System) developer found the following scenario:
Metrics table was pre-split with many regions on large cluster.
After some time, AMS stopped working because region normalizer merged the
regions into few big regions which were not able to serve high read / write
load.
We should consider setting reasonable lower bound on region count.
If the table is pre-split, we can use initial region count as the lower bound.
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