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From "Jean-Daniel Cryans (JIRA)" <j...@apache.org>
Subject [jira] Created: (HBASE-2888) Review all our metrics
Date Thu, 29 Jul 2010 00:17:16 GMT
Review all our metrics

                 Key: HBASE-2888
                 URL: https://issues.apache.org/jira/browse/HBASE-2888
             Project: HBase
          Issue Type: Improvement
          Components: master
            Reporter: Jean-Daniel Cryans
             Fix For: 0.90.0

HBase publishes a bunch of metrics, some useful some wasteful, that should be improved to
deliver a better ops experience. Examples:

 - Block cache hit ratio converges at some point and stops moving
 - fsReadLatency goes down when compactions are running
 - storefileIndexSizeMB is the exact same number once a system is serving production load

We could use new metrics too.

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