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https://issues.apache.org/jira/browse/MESOS-305?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13616564#comment-13616564
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Benjamin Mahler commented on MESOS-305:
---------------------------------------
Chain of reviews:
https://reviews.apache.org/r/10160/
https://reviews.apache.org/r/10161/
https://reviews.apache.org/r/10171/
https://reviews.apache.org/r/10172/ (fix)
> Inform the framework about a master failover
> --------------------------------------------
>
> Key: MESOS-305
> URL: https://issues.apache.org/jira/browse/MESOS-305
> Project: Mesos
> Issue Type: Improvement
> Reporter: Vinod Kone
> Assignee: Benjamin Mahler
> Priority: Critical
>
> With the recent changes in the master detecter code, we no longer send
> 'NoMasterDetected' to the scheduler driver, which in turn means the
> 'disconnected' scheduler callback is never invoked.
> At Twitter this manifested as a spew of LOST tasks whenever a master failover
> happens. This is because the scheduler holds on to offers for a while and
> never knows about the invalidity of offers, until after tasks are launched.
> Though this is a race, it is ideal to minimize this window as much as
> possible by informing the scheduler of the master failover.
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