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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-6312) Make BlockCache eviction thresholds configurable
Date Fri, 26 Oct 2012 04:55:17 GMT

    [ https://issues.apache.org/jira/browse/HBASE-6312?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13484710#comment-13484710
] 

Hudson commented on HBASE-6312:
-------------------------------

Integrated in HBase-0.94 #555 (See [https://builds.apache.org/job/HBase-0.94/555/])
    HBASE-7053 port blockcache configurability (part of HBASE-6312, and HBASE-7033) to 0.94
(Sergey Shelukhin) (Revision 1402385)

     Result = SUCCESS
larsh : 
Files : 
* /hbase/branches/0.94/src/main/java/org/apache/hadoop/hbase/io/hfile/CacheConfig.java
* /hbase/branches/0.94/src/main/java/org/apache/hadoop/hbase/io/hfile/DoubleBlockCache.java
* /hbase/branches/0.94/src/main/java/org/apache/hadoop/hbase/io/hfile/LruBlockCache.java
* /hbase/branches/0.94/src/test/java/org/apache/hadoop/hbase/io/hfile/TestHFileDataBlockEncoder.java
* /hbase/branches/0.94/src/test/java/org/apache/hadoop/hbase/io/hfile/TestLruBlockCache.java

                
> Make BlockCache eviction thresholds configurable
> ------------------------------------------------
>
>                 Key: HBASE-6312
>                 URL: https://issues.apache.org/jira/browse/HBASE-6312
>             Project: HBase
>          Issue Type: Improvement
>          Components: io
>    Affects Versions: 0.94.0
>            Reporter: Jie Huang
>            Assignee: Jie Huang
>            Priority: Minor
>             Fix For: 0.96.0
>
>         Attachments: hbase-6312.patch, hbase-6312_v2.patch, hbase-6312_v3.patch
>
>
> Some of our customers found that tuning the BlockCache eviction thresholds made test
results different in their test environment. However, those thresholds are not configurable
in the current implementation. The only way to change those values is to re-compile the HBase
source code. We wonder if it is possible to make them configurable.

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