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https://issues.apache.org/jira/browse/FLINK-1663?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14353312#comment-14353312
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Robert Metzger commented on FLINK-1663:
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Yep, users often request this.
+1
> Add a FIFO job scheduler to the JobManager
> ------------------------------------------
>
> Key: FLINK-1663
> URL: https://issues.apache.org/jira/browse/FLINK-1663
> Project: Flink
> Issue Type: New Feature
> Components: JobManager
> Reporter: Fabian Hueske
> Priority: Minor
>
> Right now, the JobManager rejects jobs that cannot be immediately executed
> due to lack of available slots.
> In case some slots are occupied by currently running jobs, it would be good
> if the JM would put the job in a FIFO and execute it as soon as enough
> resources became available. The scheduler should also monitor the total
> amount of slots such that a job does not become a blocker if one or more TMs
> go down.
> A nice addition could be the option to define job interdependencies, i.e., a
> job does only execute if some other job has been successfully executed. If
> that other job failed, the job is dropped as well.
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