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From "Anindya Sinha (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (AURORA-1075) schedule instance on every host matching constraints
Date Thu, 25 Jun 2015 03:13:06 GMT

    [ https://issues.apache.org/jira/browse/AURORA-1075?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14600607#comment-14600607
] 

Anindya Sinha commented on AURORA-1075:
---------------------------------------

Yeah, good suggestion. Posted the proposal in the dev list.

> schedule instance on every host matching constraints
> ----------------------------------------------------
>
>                 Key: AURORA-1075
>                 URL: https://issues.apache.org/jira/browse/AURORA-1075
>             Project: Aurora
>          Issue Type: Story
>          Components: Scheduler
>            Reporter: Jay Buffington
>
> I'd like aurora to schedule an instance of a given job on every host it has seen an offer
for.  So if I were to create this job:
> {noformat}
> import os
> jobs = [Job(
>   task=SimpleTask(name="hello_world", command="echo hello world"),
>   role=os.getenv('USER'),
>   cluster="cluster1",
>   instances="*"
> )]
> {noformat}
> It would result in hello world running on every host in the cluster where there is room.
> If I were to set constraints (e.g. dedicated role), only hosts matching constraints would
have the instances started on it.
> If the Job is a production job, instances of other jobs would be preempted if necessary
to make room for this instance on every host aurora knows about.



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