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From "Amar Kamat (JIRA)" <j...@apache.org>
Subject [jira] Updated: (HADOOP-2801) Non-speculative and speculative tasks for a TIP start at the same time.
Date Fri, 08 Feb 2008 16:37:07 GMT

     [ https://issues.apache.org/jira/browse/HADOOP-2801?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Amar Kamat updated HADOOP-2801:
-------------------------------

    Description: 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.  (was: 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.)

> Non-speculative and speculative tasks for a TIP start at the same time.
> -----------------------------------------------------------------------
>
>                 Key: HADOOP-2801
>                 URL: https://issues.apache.org/jira/browse/HADOOP-2801
>             Project: Hadoop Core
>          Issue Type: Bug
>          Components: mapred
>            Reporter: Amar Kamat
>             Fix For: 0.16.1
>
>
> 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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