churro morales created HBASE-11195:
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Summary: Potentially improve block locality during major
compaction for old regions
Key: HBASE-11195
URL: https://issues.apache.org/jira/browse/HBASE-11195
Project: HBase
Issue Type: Improvement
Affects Versions: 0.94.19
Reporter: churro morales
This might be a specific use case. But we have some regions which are no
longer written to (due to the key). Those regions have 1 store file and they
are very old, they haven't been written to in a while. We still use these
regions to read from so locality would be nice.
I propose putting a configuration option: something like
hbase.hstore.min.locality.to.skip.major.compact [between 0 and 1]
such that you can decide whether or not to skip major compaction for an old
region with a single store file.
I'll attach a patch, let me know what you guys think.
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