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Date: Mon, 16 Jul 2012 22:48:36 +0000 (UTC)
From: "Jean-Daniel Cryans (JIRA)" <jira@apache.org>
To: issues@hbase.apache.org
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Subject: [jira] [Commented] (HBASE-6312) Make BlockCache eviction thresholds
 configurable
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    [ https://issues.apache.org/jira/browse/HBASE-6312?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13415748#comment-13415748 ] 

Jean-Daniel Cryans commented on HBASE-6312:
-------------------------------------------

"hbase.lru.blockcache.default.min.factor" is not the default, the default is in the code, so it should be called "hbase.lru.blockcache.min.factor". Same for LRU_DEFAULT_MIN_FACTOR which should be LRU_MIN_FACTOR.
                
> 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_v2.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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