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https://issues.apache.org/jira/browse/HADOOP-2600?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Bryan Duxbury updated HADOOP-2600:
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Status: Patch Available (was: Open)
Trying Hudson
> [hbase] Performance: HStore.getRowKeyAtOrBefore should use
> MapFile.Reader#getClosest (before)
> ---------------------------------------------------------------------------------------------
>
> Key: HADOOP-2600
> URL: https://issues.apache.org/jira/browse/HADOOP-2600
> Project: Hadoop
> Issue Type: Improvement
> Components: contrib/hbase
> Reporter: Bryan Duxbury
> Assignee: Bryan Duxbury
> Priority: Minor
> Attachments: 2600.patch
>
>
> Once HADOOP-2532 is committed, we should make use of the new MapFile method
> to improve the performance of getClosestRow. This is an important
> improvement, because this method is used to look up region locations, a very
> critical part of HBase. Currently, the needed behavior is simulated by doing
> a linear scan of the MapFile. I think that 2532 will allow us to replace this
> with an index based lookup, which should make it much faster.
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