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Posted to issues@hbase.apache.org by "Heng Chen (JIRA)" <ji...@apache.org> on 2015/10/27 10:19:28 UTC

[jira] [Commented] (HBASE-14704) Block cache instances should be mapped to each region servers in standalone mode or HBaseTestingUtility

    [ https://issues.apache.org/jira/browse/HBASE-14704?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14976063#comment-14976063 ] 

Heng Chen commented on HBASE-14704:
-----------------------------------

Excuse me, I don't understand what's the problem when all RS share one block cache instance in standalone or tests. 
Could you explain in detail? Thanks!

> Block cache instances should be mapped to each region servers in standalone mode or HBaseTestingUtility
> -------------------------------------------------------------------------------------------------------
>
>                 Key: HBASE-14704
>                 URL: https://issues.apache.org/jira/browse/HBASE-14704
>             Project: HBase
>          Issue Type: Bug
>            Reporter: Eungsop Yoo
>            Priority: Minor
>         Attachments: HBASE-14704.patch
>
>
> CacheConfig has a single and static block cache instance. When HBase is running in standalone mode or HBaseTestingUtility, a single instance of block cache causes incorrect cache stats. So I suggest to change a single instance of block cache to a map of region server and block cache.



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