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https://issues.apache.org/jira/browse/HBASE-6312?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13408844#comment-13408844
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Jie Huang commented on HBASE-6312:
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I agree to modify those 2 configuration items here. Meanwhile, another point
which Jason states here is how to make the customer understand the relationship
between hfile.block.cache.size and actual cached size. The configurable items
somehow can make them aware of the thresholds existing, and what the expected
result is. Otherwise, they need to read the source code or ask in MailList.
> 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
>
>
> 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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