Loaded hfile indexes occupy a good chunk of heap; look into shrinking the
amount used and/or evicting unused indices
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Key: HBASE-3551
URL: https://issues.apache.org/jira/browse/HBASE-3551
Project: HBase
Issue Type: Improvement
Reporter: stack
I hung with a user Marc and we were looking over configs and his cluster
profile up on ec2. One thing we noticed was that his 100+ 1G regions of two
families had ~2.5G of heap resident. We did a bit of math and couldn't get to
2.5G so that needs looking into. Even still, 2.5G is a bunch of heap to give
over to indices (He actually OOME'd when he had his RS heap set to just 3G; we
shouldn't OOME, we should just run slower). It sounds like he needs the
indices loaded but still, for some cases we should drop indices for unaccessed
files.
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