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From "Amar Kamat (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (MAPREDUCE-2511) Progress reported by map tasks of a map-only job is incorrect
Date Mon, 23 May 2011 17:15:47 GMT

     [ https://issues.apache.org/jira/browse/MAPREDUCE-2511?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Amar Kamat resolved MAPREDUCE-2511.
-----------------------------------

    Resolution: Duplicate

Fixed as part of MAPREDUCE-2492.

> Progress reported by map tasks of a map-only job is incorrect
> -------------------------------------------------------------
>
>                 Key: MAPREDUCE-2511
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-2511
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>    Affects Versions: 0.23.0
>            Reporter: Amar Kamat
>            Assignee: Amar Kamat
>
> For a map task of a map-reduce job, the progress bar is (logically) split into 2 distinct
phases
> 1. Map Phase
> 2. Sort Phase
> The map phase manages 66% of the overall tasks progress while the sort phase governs
the rest i.e 33%. 
> For a map task of a map-only job, there is no sort phase. Hence the entire map phase
should govern 100% of the task's progress. Currently, the progress bar is split divided into
66%-33% irrespective of whether the job has reducers or not (i.e whether there is a sort phase
or not).

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