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From "Jonathan Ellis (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CASSANDRA-2527) Add ability to snapshot data as input to hadoop jobs
Date Fri, 15 Nov 2013 20:21:23 GMT

    [ https://issues.apache.org/jira/browse/CASSANDRA-2527?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13824049#comment-13824049
] 

Jonathan Ellis commented on CASSANDRA-2527:
-------------------------------------------

No.

> Add ability to snapshot data as input to hadoop jobs
> ----------------------------------------------------
>
>                 Key: CASSANDRA-2527
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-2527
>             Project: Cassandra
>          Issue Type: New Feature
>            Reporter: Jeremy Hanna
>            Assignee: Brandon Williams
>              Labels: hadoop
>             Fix For: 2.1
>
>
> It is desirable to have immutable inputs to hadoop jobs for the duration of the job.
 That way re-execution of individual tasks do not alter the output.  One way to accomplish
this would be to snapshot the data that is used as input to a job.



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