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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-18652) Expose individual cache stats in a CombinedCache through JMX
Date Tue, 05 Sep 2017 19:27:02 GMT

    [ https://issues.apache.org/jira/browse/HBASE-18652?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16154160#comment-16154160
] 

Hudson commented on HBASE-18652:
--------------------------------

FAILURE: Integrated in Jenkins build HBase-2.0 #461 (See [https://builds.apache.org/job/HBase-2.0/461/])
HBASE-18652 Expose individual cache stats in a CombinedCache through JMX (tedyu: rev 5c1246296f1fd08b1c2790950e5859d68b433724)
* (edit) hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestMetricsRegionServer.java
* (edit) hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/MetricsRegionServerWrapperStub.java
* (edit) hbase-hadoop-compat/src/main/java/org/apache/hadoop/hbase/regionserver/MetricsRegionServerWrapper.java
* (edit) hbase-server/src/main/java/org/apache/hadoop/hbase/io/hfile/CacheConfig.java
* (edit) hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/MetricsRegionServerWrapperImpl.java
* (edit) hbase-hadoop-compat/src/main/java/org/apache/hadoop/hbase/regionserver/MetricsRegionServerSource.java
* (edit) hbase-hadoop2-compat/src/main/java/org/apache/hadoop/hbase/regionserver/MetricsRegionServerSourceImpl.java


> Expose individual cache stats in a CombinedCache through JMX
> ------------------------------------------------------------
>
>                 Key: HBASE-18652
>                 URL: https://issues.apache.org/jira/browse/HBASE-18652
>             Project: HBase
>          Issue Type: Improvement
>          Components: regionserver
>            Reporter: Biju Nair
>            Assignee: Biju Nair
>         Attachments: HBASE-18652.PATCH, HBASE-18652-V1.0.PATCH, HBASE-18652-V2.0.PATCH,
HBASE-18652-WIP.PATCH
>
>
> With offHeap cache being used to store data blocks and on-heap for index and bloom filters,
exposing the stats from the individual caches through JMX will help understand the cache usage
trend. Currently the combined cache stats is available through JMX which may not provide insight
into the individual cache usage.



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