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From "Bryan Duxbury (JIRA)" <j...@apache.org>
Subject [jira] Updated: (HBASE-524) Problems with getFull
Date Mon, 17 Mar 2008 22:54:24 GMT

     [ https://issues.apache.org/jira/browse/HBASE-524?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

Bryan Duxbury updated HBASE-524:

    Attachment: 524-0.1.patch

This patch introduces a new test case to make prove this stuff is actually broken, and then
fixes to HStore to make it work as intended. All tests pass.

> Problems with getFull
> ---------------------
>                 Key: HBASE-524
>                 URL: https://issues.apache.org/jira/browse/HBASE-524
>             Project: Hadoop HBase
>          Issue Type: Bug
>          Components: regionserver
>    Affects Versions: 0.1.0, 0.2.0
>            Reporter: Bryan Duxbury
>            Assignee: Bryan Duxbury
>            Priority: Critical
>             Fix For: 0.1.0
>         Attachments: 524-0.1.patch
> There are some issues with the implementation of getFull in HStore. 
>  * If the loop encounters a deleted cell, it stops iterating. This correctly handles
deletes, but then accidentally masks away any cells of different qualifiers that would come
>  * Since the mapfiles are search oldest to newest, and the results map is only updated
when there isn't already a value in the results map for for the cell we're currently looking
at, older values actually take precedence over newer ones. This may be fixed by simply reversing
the order of mapfiles traversed to newest to oldest.

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