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From "Biju Nair (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HBASE-18652) Expose individual cache stats in a CombinedCache through JMX
Date Tue, 22 Aug 2017 16:02:00 GMT
Biju Nair created HBASE-18652:
---------------------------------

             Summary: Expose individual cache stats in a CombinedCache through JMX
                 Key: HBASE-18652
                 URL: https://issues.apache.org/jira/browse/HBASE-18652
             Project: HBase
          Issue Type: Improvement
          Components: regionserver
            Reporter: Biju Nair


With offHeap cache being used to store data blocks and on-heap for index and bloom filters,
exposing the stats from the individual caches through JMX will help understand the cache usage
trend. Currently the combined cache stats is available through JMX which may not provide insight
into the individual cache usage.



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