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Posted to common-dev@hadoop.apache.org by "Robert Chansler (JIRA)" <ji...@apache.org> on 2008/03/25 04:03:25 UTC

[jira] Updated: (HADOOP-2801) Non-speculative and speculative tasks for a TIP start at the same time.

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

Robert Chansler updated HADOOP-2801:
------------------------------------

    Fix Version/s:     (was: 0.17.0)

> 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
>            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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