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Posted to dev@phoenix.apache.org by "Gabriel Reid (JIRA)" <ji...@apache.org> on 2014/07/08 21:37:04 UTC

[jira] [Resolved] (PHOENIX-539) Implement parallel scanner that does not spool to disk

     [ https://issues.apache.org/jira/browse/PHOENIX-539?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Gabriel Reid resolved PHOENIX-539.
----------------------------------

       Resolution: Fixed
    Fix Version/s: 4.1
                   3.1
                   5.0.0
         Assignee: Gabriel Reid  (was: larsh)

Pushed to master, 3.0 and 4.0 branches

> Implement parallel scanner that does not spool to disk
> ------------------------------------------------------
>
>                 Key: PHOENIX-539
>                 URL: https://issues.apache.org/jira/browse/PHOENIX-539
>             Project: Phoenix
>          Issue Type: Task
>            Reporter: James Taylor
>            Assignee: Gabriel Reid
>             Fix For: 5.0.0, 3.1, 4.1
>
>         Attachments: PHOENIX-539.1.patch, PHOENIX-539.patch
>
>
> In scenarios where a LIMIT is not present on a non aggregate query that will return a lot of results, Phoenix spools the results to disk. This is less than ideal in these situations. @larsh has created a very good and relatively simple implementation that is queue based to replace this.



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