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From "Jean-Daniel Cryans (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-6312) Make BlockCache eviction thresholds configurable
Date Mon, 16 Jul 2012 22:48:36 GMT

    [ 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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