Compaction algorithm should prioritize reference files
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Key: HBASE-5161
URL: https://issues.apache.org/jira/browse/HBASE-5161
Project: HBase
Issue Type: Bug
Affects Versions: 0.92.0
Reporter: Jean-Daniel Cryans
Priority: Minor
Fix For: 0.94.0, 0.92.1
I got myself into a state where my table was un-splittable as long as the
insert load was coming in. Emergency flushes because of the low memory barrier
don't check the number of store files so it never blocks, to a point where I
had in one case 45 store files and the compactions were almost never done on
the reference files (had 15 of them, went down by one in 20 minutes). Since you
can't split regions with reference files, that region couldn't split and was
doomed to just get more store files until the load stopped.
Marking this as a minor issue, what we really need is a better pushback
mechanism but not prioritizing reference files seems wrong.
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