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From "Jie Huang (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HBASE-6312) Make BlockCache eviction thresholds configurable
Date Mon, 09 Jul 2012 04:06:34 GMT

     [ https://issues.apache.org/jira/browse/HBASE-6312?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Jie Huang updated HBASE-6312:
-----------------------------

    Attachment: hbase-6312_v2.patch

bq. So I take it that you support my idea of setting the acceptable factor to 99% and the
minimum to 95%? 
Modified that default value accordingly. 
bq. Making the minimum configurable allow the users to fine tune the behavior 
Only make that min_factor configurable 
Is that ok?
                
> 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
>            Priority: Minor
>         Attachments: hbase-6312.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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