[
https://issues.apache.org/jira/browse/HBASE-6312?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13408864#comment-13408864
]
Jason Dai commented on HBASE-6312:
----------------------------------
bq. So I take it that you support my idea of setting the acceptable factor to
99% and the minimum to 95%?
Yes, I think these are good changes:
1) Setting the acceptable factor to 99% allows the users to use almost all of
the cache size they have allocated
2) Setting the minimum factor to 95% makes eviction less aggressive and can
potentially help the performance
3) Making the minimum configurable allow the users to fine tune the behavior
(e.g., when they see it's evicting too often)
> 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.
--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators:
https://issues.apache.org/jira/secure/ContactAdministrators!default.jspa
For more information on JIRA, see: http://www.atlassian.com/software/jira
