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Posted to dev@hbase.apache.org by "stack (JIRA)" <ji...@apache.org> on 2009/09/12 00:34:08 UTC
[jira] Updated: (HBASE-1729) Move cache stats out of RS log and
into metrics
[ 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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