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From "Alicia Ying Shu (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HBASE-15643) Need metrics of cache hit ratio, etc for one table
Date Tue, 05 Jul 2016 23:17:11 GMT

     [ https://issues.apache.org/jira/browse/HBASE-15643?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Alicia Ying Shu updated HBASE-15643:
------------------------------------
    Attachment: HBASE-15643.patch

> 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
>         Attachments: HBASE-15643.patch
>
>
> 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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