Biju Nair created HBASE-18532:
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Summary: Improve cache related stats rendered on RS UI
Key: HBASE-18532
URL: https://issues.apache.org/jira/browse/HBASE-18532
Project: HBase
Issue Type: Improvement
Components: regionserver
Affects Versions: 1.1.2
Reporter: Biju Nair
The stats currently rendered for L1 and L2 cache are incorrect. Refer to the
attached screenshots of stats from a cluster showing the combined cache stats,
L1 stats and L2 stats. For e.g. the combined stats shows 38 GB used for cache
while if we sum size of L1 and L2 cache the value is way less. One way we can
improve this is to use the same stats used to populate the combined stats to
render the values of L1 & L2 cache. Also for usability we can remove the table
with details with BucketCache buckets from the L2 cache stats since this is
going to be long for any installation using L2 cache. This will help in
understanding the cache usage better. Thoughts? If there are no concerns will
submit a patch.
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