Rajeshbabu Chintaguntla created HBASE-27667:
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Summary: Normalizer can skip picking presplit regions while
preparing merge plans
Key: HBASE-27667
URL: https://issues.apache.org/jira/browse/HBASE-27667
Project: HBase
Issue Type: Improvement
Components: Normalizer
Reporter: Rajeshbabu Chintaguntla
Assignee: Rajeshbabu Chintaguntla
Fix For: 2.6.0, 3.0.0-alpha-4, 2.5.4
Normalizer can be used to merge the regions which become emtpy post TTL expiry.
But it's picking the presplit regions as well. We can skip picking presplit
regions while preparing the merge plans by looking at the number of storefiles
compared to size. Presplit regions have zero storefiles where as the TTL
expired regions have 1 storefile with zero size.
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