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From "Bryan Halfpap (Created) (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HADOOP-7959) Contradiction in Hadoop Documentation
Date Thu, 05 Jan 2012 18:10:39 GMT
Contradiction in Hadoop Documentation

                 Key: HADOOP-7959
                 URL: https://issues.apache.org/jira/browse/HADOOP-7959
             Project: Hadoop Common
          Issue Type: Bug
          Components: documentation
    Affects Versions: 1.0.0
         Environment: http://hadoop.apache.org/common/docs/current/api/org/apache/hadoop/util/Progressable.html
            Reporter: Bryan Halfpap
            Priority: Minor

The statement: "This is especially important for operations which take an insignificant amount
of time since, in-lieu of the reported progress, the framework has to assume that an error
has occured and time-out the operation." in the aforementioned URL directly contradicts http://hadoop.apache.org/common/docs/r0.20.2/mapred_tutorial.html#Reporter
which states: "where the application takes a significant amount of time to process individual
key/value pairs, this is crucial since the framework might assume that the task has timed-out
and kill that task."

The two statements should be reconciled in order to remove confusion.

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