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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-8063) Filter HFiles based on first/last key
Date Fri, 29 Mar 2013 00:59:19 GMT

    [ https://issues.apache.org/jira/browse/HBASE-8063?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13616928#comment-13616928
] 

Hudson commented on HBASE-8063:
-------------------------------

Integrated in HBase-TRUNK-on-Hadoop-2.0.0 #467 (See [https://builds.apache.org/job/HBase-TRUNK-on-Hadoop-2.0.0/467/])
    HBASE-8063 Addendum adds HalfStoreFileReader#passesKeyRangeFilter() (Revision 1462235)

     Result = FAILURE
tedyu : 
Files : 
* /hbase/trunk/hbase-server/src/main/java/org/apache/hadoop/hbase/io/HalfStoreFileReader.java
* /hbase/trunk/hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/StoreFile.java

                
> Filter HFiles based on first/last key
> -------------------------------------
>
>                 Key: HBASE-8063
>                 URL: https://issues.apache.org/jira/browse/HBASE-8063
>             Project: HBase
>          Issue Type: Improvement
>          Components: Scanners
>    Affects Versions: 0.98.0
>            Reporter: Liang Xie
>            Assignee: Liang Xie
>             Fix For: 0.98.0
>
>         Attachments: 8063.addendum, HBASE-8063.txt, HBASE-8063-v2.txt, HBASE-8063-v3.txt,
HBASE-8063-v4.txt
>
>
> # hbase-5010 introduced a filter mechanism based on timerange hint
> # this jira is a placeholder just for keyrange hint: currently, low layer(hfile reader)
has first/last key getter methods already. we should utilize this information to pre-filte
hfiles while choosing scanners from storefiles.
> It's just a raw thought right now, no patch available yet. I'll summit a patch asap if
it's reasonable, welcome to give some suggestions/comments:)

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