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https://issues.apache.org/jira/browse/SPARK-2204?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Sebastien Rainville updated SPARK-2204:
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Fix Version/s: (was: 1.0.1)
> Scheduler for Mesos in fine-grained mode launches tasks on random executors
> ---------------------------------------------------------------------------
>
> Key: SPARK-2204
> URL: https://issues.apache.org/jira/browse/SPARK-2204
> Project: Spark
> Issue Type: Bug
> Components: Mesos
> Affects Versions: 1.0.0
> Reporter: Sebastien Rainville
> Priority: Blocker
>
> MesosSchedulerBackend.resourceOffers(SchedulerDriver, List[Offer]) is
> assuming that TaskSchedulerImpl.resourceOffers(Seq[WorkerOffer]) is returning
> task lists in the same order as the offers it was passed, but in the current
> implementation TaskSchedulerImpl.resourceOffers shuffles the offers to avoid
> assigning the tasks always to the same executors. The result is that the
> tasks are launched on random executors.6
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