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From "stack (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-2888) Review all our metrics
Date Wed, 18 May 2011 17:48:47 GMT

    [ https://issues.apache.org/jira/browse/HBASE-2888?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13035513#comment-13035513
] 

stack commented on HBASE-2888:
------------------------------

And this http://search-hadoop.com/m/EYsXe2lkkbx/Extended+Period+Metrics&subj=Extended+Period+Metrics

> Review all our metrics
> ----------------------
>
>                 Key: HBASE-2888
>                 URL: https://issues.apache.org/jira/browse/HBASE-2888
>             Project: HBase
>          Issue Type: Improvement
>          Components: master, metrics
>            Reporter: Jean-Daniel Cryans
>             Fix For: 0.92.0
>
>
> 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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