Ionut Ignatescu created HBASE-6613:
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Summary: Automatically merge empty regions
Key: HBASE-6613
URL: https://issues.apache.org/jira/browse/HBASE-6613
Project: HBase
Issue Type: New Feature
Components: master, regionserver, util
Affects Versions: 0.94.1
Reporter: Ionut Ignatescu
Consider an usecase where row keys has an increasing value(time-series data for
example) and data retention is set to a concrete value(60 days for example).
After a period of time, longer than retention, empty regions will appear. This
will cause high memory use on region servers.
In my opinion, regions merge could be part of major compaction or another tool
should be provided. From my understading, it is possible to merge 2 empty
regions without make table offline, but it's not possible to merge one empty
region with a non-empty region without close/unassing this regions.
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