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From "stack (JIRA)" <j...@apache.org>
Subject [jira] Updated: (HBASE-1729) Move cache stats out of RS log and into metrics
Date Fri, 11 Sep 2009 22:34:08 GMT

     [ https://issues.apache.org/jira/browse/HBASE-1729?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

stack updated HBASE-1729:
-------------------------

    Fix Version/s:     (was: 0.20.1)
                   0.21.0

Moving out of 0.20.1.  Annoying but not important.

> Move cache stats out of RS log and into metrics
> -----------------------------------------------
>
>                 Key: HBASE-1729
>                 URL: https://issues.apache.org/jira/browse/HBASE-1729
>             Project: Hadoop HBase
>          Issue Type: Bug
>            Reporter: stack
>             Fix For: 0.21.0
>
>
> We log this every minute in RS logs:
> {code}
> 2009-07-30 16:24:54,479 DEBUG org.apache.hadoop.hbase.io.hfile.LruBlockCache: Cache Stats:
Sizes: Total=414.8218MB (434972192), Free=252.50949MB (264775392), Max=667.3313MB (699747584),
Counts: Blocks=1106, Access=273562, Hit=271671, Miss=1891, Evictions=0, Evicted=0, Ratios:
Hit Ratio=99.30874705314636%, Miss Ratio=0.691250991076231%, Evicted/Run=NaN
> {code}
> Thats a metric.  Should be over in metrics.  Metrics does some of above but not all.
 Extend it so just as comprehensive.  Then we can see it ganglia, jmx, etc.

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