Nick Dimiduk created HBASE-24464:
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Summary: Normalizer should have configuration for minimum region
size
Key: HBASE-24464
URL: https://issues.apache.org/jira/browse/HBASE-24464
Project: HBase
Issue Type: Improvement
Components: master
Reporter: Nick Dimiduk
Another issue raised in PR review on HBASE-24418. With the current
implementation, the lower-bound on how small the normalizer will make a region
is its lowest granularity of size measurement: 1mb. That means it will happily
balance a table out to be 1000 * 1mb regions (probably not likely, but seems
plausible). The proposal was to add configuration knob that specifies the lower
bound on region size as a guard against excessive splitting, something of an
analogue to {{hbase.hregion.max.filesize}}.
I'm not convinced this is really needed; I think the table would need to have
been crafted intentionally to trigger this behavior. However, it seems like a
reasonable guard rail to install. Discuss.
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