Nick Dimiduk created PHOENIX-2939:
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Summary: MetaCache is easily thrashed with default settings
Key: PHOENIX-2939
URL: https://issues.apache.org/jira/browse/PHOENIX-2939
Project: Phoenix
Issue Type: Bug
Reporter: Nick Dimiduk
With default settings for {{phoenix.coprocessor.maxMetaDataCacheSize}} (20mb)
and {{phoenix.stats.guidepost.width}} (100mb * 3), even a relatively small
amount of data (ie 10TB, 2000 regions) will easily produce more stats data than
fits in the cache. This quickly leads us into a situation where we thrash the
cache and spend an inordinate amount of time (re)scanning SYSTEM.STATS table.
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