[jira] [Updated] (MESOS-7181) Stale frameworks seen on Mesos, but not known to scheduler

["Anindya Sinha (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/MESOS-7181?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Anindya Sinha updated MESOS-7181:
---------------------------------
    Summary: Stale frameworks seen on Mesos, but not known to scheduler  (was: Stale frameworks seen on Mesos, but not known to schedulers)

> Stale frameworks seen on Mesos, but not known to scheduler
> ----------------------------------------------------------
>
>                 Key: MESOS-7181
>                 URL: https://issues.apache.org/jira/browse/MESOS-7181
>             Project: Mesos
>          Issue Type: Bug
>          Components: general
>            Reporter: Anindya Sinha
>            Assignee: Anindya Sinha
>
> Using a scheduler which launches multiple frameworks using scheduler driver, we observe occasionally that a framework exists on Mesos which is not known to the scheduler. Since there is no entity that acts on the offers, this framework ends up hogging all the offers leading to starvation in the cluster.
> This particular scenario is as follows:
> 1) Scheduler does a driver.start() which results in the 1st SUBSCRIBE sent to master.
> 2) The scheduler driver resends the SUBSCRIBE (since the framework has not yet registered) which is a result of the exponential backoff.
> 3) Framework is registered based on the 1st SUBSCRIBE, but the scheduler issues a driver.stop() immediately which results in a TEARDOWN sent to the master.
> 4) Master processes the TEARDOWN which removes the framework.
> 5) Master now processes the 2nd SUBSCRIBE (after authorization) and tries to add this framework. This succeeds and a new framework id is generated (since the original framework is no longer registered after the TEARDOWN) but the Scheduler driver by now has already terminated once the scheduler issued the driver.stop(). So, master continues to send offers to this 2nd framework and hogs on to offers till offer time out.



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