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Posted to issues@hbase.apache.org by "Alicia Ying Shu (JIRA)" <ji...@apache.org> on 2016/07/05 23:15:11 UTC

[jira] [Commented] (HBASE-15643) Need metrics of cache hit ratio, etc for one table

    [ https://issues.apache.org/jira/browse/HBASE-15643?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15363445#comment-15363445 ] 

Alicia Ying Shu commented on HBASE-15643:
-----------------------------------------

Rebased the patch and uploaded again. 

> Need metrics of cache hit ratio, etc for one table
> --------------------------------------------------
>
>                 Key: HBASE-15643
>                 URL: https://issues.apache.org/jira/browse/HBASE-15643
>             Project: HBase
>          Issue Type: Improvement
>            Reporter: Heng Chen
>            Assignee: Alicia Ying Shu
>
> There are many tables on our cluster,  only some of them need to be read online.  
> We could improve the performance of read by cache,  but we need some metrics for it at table level. There are a few we can collect: BlockCacheCount, BlockCacheSize, BlockCacheHitCount, BlockCacheMissCount, BlockCacheHitPercent



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