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From "Hudson (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-4585) Avoid seek operation when current kv is deleted
Date Tue, 18 Oct 2011 22:53:11 GMT

    [ https://issues.apache.org/jira/browse/HBASE-4585?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13130100#comment-13130100
] 

Hudson commented on HBASE-4585:
-------------------------------

Integrated in HBase-TRUNK #2337 (See [https://builds.apache.org/job/HBase-TRUNK/2337/])
    HBASE-4585 Avoid seek operation when current kv is deleted(Liyin Tang)

ramkrishna : 
Files : 
* /hbase/trunk/CHANGES.txt
* /hbase/trunk/src/main/java/org/apache/hadoop/hbase/regionserver/DeleteTracker.java
* /hbase/trunk/src/main/java/org/apache/hadoop/hbase/regionserver/ScanDeleteTracker.java
* /hbase/trunk/src/main/java/org/apache/hadoop/hbase/regionserver/ScanQueryMatcher.java
* /hbase/trunk/src/test/java/org/apache/hadoop/hbase/regionserver/TestBlocksRead.java
* /hbase/trunk/src/test/java/org/apache/hadoop/hbase/regionserver/TestScanDeleteTracker.java

                
> Avoid seek operation when current kv is deleted
> -----------------------------------------------
>
>                 Key: HBASE-4585
>                 URL: https://issues.apache.org/jira/browse/HBASE-4585
>             Project: HBase
>          Issue Type: Improvement
>            Reporter: Liyin Tang
>            Assignee: Liyin Tang
>             Fix For: 0.94.0
>
>         Attachments: hbase-4585-89.patch, hbase-4585-apache-trunk.patch
>
>
> When the current kv is deleted during the matching in the ScanQueryMatcher, currently
the matcher will return skip and continue to seek.
> Actually, if the current kv is deleted because of family deleted or column deleted, the
matcher should seek to next col.
> If the current kv is deleted because of version deleted, the matcher should just return
skip.

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