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From "Amar Kamat (JIRA)" <j...@apache.org>
Subject [jira] Resolved: (MAPREDUCE-25) Non-speculative and speculative tasks for a TIP start at the same time.
Date Wed, 07 Oct 2009 06:30:31 GMT

     [ https://issues.apache.org/jira/browse/MAPREDUCE-25?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Amar Kamat resolved MAPREDUCE-25.
---------------------------------

    Resolution: Invalid

Taken care in HADOOP-2141.

> Non-speculative and speculative tasks for a TIP start at the same time.
> -----------------------------------------------------------------------
>
>                 Key: MAPREDUCE-25
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-25
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>            Reporter: Amar Kamat
>            Assignee: Amar Kamat
>
> I ran into a situation where the non-speculative task and the speculative task were started
at the same time. Ideally there should be a 1 min gap for speculation. One possible reason
would be the usage of {{startTime}} in deciding whether there is a speculative lag.

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