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From "stack (JIRA)" <j...@apache.org>
Subject [jira] Updated: (HBASE-975) Improve MapFile performance for start and end key
Date Sat, 01 Nov 2008 04:41:44 GMT

     [ https://issues.apache.org/jira/browse/HBASE-975?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

stack updated HBASE-975:

    Attachment: 975-v2.patch

Adds caching of first and last keys to HbaseMapFile.HbaseReader and to HalfReader.  Use cached
keys whenever they're asked for.  Added refactoring that cleans up some long methods.  Added
tests of new HbaseReader.contains method.

Todo is using contains method inside all get methods, etc.

> Improve MapFile performance for start and end key
> -------------------------------------------------
>                 Key: HBASE-975
>                 URL: https://issues.apache.org/jira/browse/HBASE-975
>             Project: Hadoop HBase
>          Issue Type: Improvement
>            Reporter: Jean-Daniel Cryans
>            Assignee: stack
>             Fix For: 0.19.0
>         Attachments: 975-v2.patch, hbase-975.patch
> Keeping a MapFile's start and end key in cache would save us some seeks, see if it can
be done.

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