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From "Min Zhou (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (TAJO-305) Implement killQuery feature
Date Fri, 22 Nov 2013 01:13:35 GMT

    [ https://issues.apache.org/jira/browse/TAJO-305?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13829540#comment-13829540

Min Zhou commented on TAJO-305:

Hi Hyunsik,

I am confused about the terms in tajo. For mapreduce,  the hierarchy is job->task->taskattempt
For tajo, it is  Query -> SubQuery  -> QueryUnit -> QueryUnitAttempt, right? 
But I saw there is task, taskattempt in the code d

dispatcher.register(TaskEventType.class, new TaskEventDispatcher());
dispatcher.register(TaskAttemptEventType.class, new TaskAttemptEventDispatcher());

What does the task and taskattempt mean? A little bit confused :)


> Implement killQuery feature
> ---------------------------
>                 Key: TAJO-305
>                 URL: https://issues.apache.org/jira/browse/TAJO-305
>             Project: Tajo
>          Issue Type: Improvement
>          Components: master
>            Reporter: Hyunsik Choi
>            Assignee: Min Zhou
>             Fix For: 0.8-incubating
> In the current version, killQuery feature is partially implemented. We need to complete
this feature and add a command to tsql.

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