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Posted to dev@accumulo.apache.org by "Keith Turner (Commented) (JIRA)" <ji...@apache.org> on 2011/11/16 16:34:52 UTC

[jira] [Commented] (ACCUMULO-149) Remove MyMapFile dependency in Isolation Image

    [ https://issues.apache.org/jira/browse/ACCUMULO-149?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13151267#comment-13151267 ] 

Keith Turner commented on ACCUMULO-149:
---------------------------------------

goodluck and godspeed on your quest young master vines
                
> Remove MyMapFile dependency in Isolation Image
> ----------------------------------------------
>
>                 Key: ACCUMULO-149
>                 URL: https://issues.apache.org/jira/browse/ACCUMULO-149
>             Project: Accumulo
>          Issue Type: Improvement
>          Components: tserver
>            Reporter: John Vines
>            Assignee: Keith Turner
>              Labels: cleanup
>             Fix For: 1.5.0
>
>
> MyMapFile and MySequenceFile are my mortal enemies and I wish for nothing more than to purge them from our codebase. The biggest standing issue keeping us from removing them entirely and using the compatible MapFile and SequenceFile is the isolation image we use to ensure Scanner consistency. It writes a temp MyMapFile to scan against until all scanners for that timeframe are complete. Because of the extra information stored in the file, an RFile is not quite compatible. So we need to come up with a method to use RFile to get done what we need to get done.

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