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Posted to dev@hbase.apache.org by "Liang Xie (JIRA)" <ji...@apache.org> on 2014/03/26 04:39:19 UTC
[jira] [Resolved] (HBASE-9679) Binary search in HFile block
[ https://issues.apache.org/jira/browse/HBASE-9679?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Liang Xie resolved HBASE-9679.
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Resolution: Won't Fix
It's seems not a good practice to do it in 0.94 branch(0.96+ has the PrefixTree) due to need a HFile index code refactoring.
Close it now, clean up JIRA:)
> Binary search in HFile block
> ----------------------------
>
> Key: HBASE-9679
> URL: https://issues.apache.org/jira/browse/HBASE-9679
> Project: HBase
> Issue Type: Improvement
> Components: HFile
> Affects Versions: 0.95.2, 0.94.12
> Reporter: Liang Xie
> Assignee: Liang Xie
> Priority: Minor
>
> It's not a top priority issue, seems to me.
> Right now hbase do a linear scan to search a key within a hfile block on interst, in special case, e.g. 100% read scenario or high read/write ratio scanario, it's useful to do a binary search improvement to reduce the CPU cost and response time, i think the biggest benefit should be the cpu:)
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