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From "Chris Douglas (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (MAPREDUCE-2492) [MAPREDUCE] The new MapReduce API should make available task's progress to the task
Date Sat, 21 May 2011 02:30:47 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-2492?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13037231#comment-13037231

Chris Douglas commented on MAPREDUCE-2492:

Adding progress to {{TaskAttemptContext}} makes sense. Minor points on the tests:

* Please use JUnit4 annotations instead of extending {{TestCase}} for new tests
* Using {{@BeforeClass}} instead of an instance initializer block would be easier to read
and would fail appropriately
* Deleting "test.build.data" (defaulting to "/tmp") recursively when the test runs could have
bad side-effects. Please use a subdir of {{rootTestDir}} instead
* Cleaning up after the test would also be a good idea ({{@AfterClass}}). Right now, many
of the tests will not delete output when the test fails.

> [MAPREDUCE] The new MapReduce API should make available task's progress to the task
> -----------------------------------------------------------------------------------
>                 Key: MAPREDUCE-2492
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-2492
>             Project: Hadoop Map/Reduce
>          Issue Type: Improvement
>          Components: task
>    Affects Versions: 0.23.0
>            Reporter: Amar Kamat
>            Assignee: Amar Kamat
>         Attachments: MAPREDUCE-2492-v1.3.patch
> There is no way to get the task's current progress in the new MapReduce API. It would
be nice to make it available so that the task (map/reduce) can use it. 

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