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From "Benjamin Mahler (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (MESOS-832) Scheduler Driver should reject messages from a non-leading master.
Date Fri, 22 Nov 2013 08:40:36 GMT

    [ https://issues.apache.org/jira/browse/MESOS-832?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13829800#comment-13829800
] 

Benjamin Mahler commented on MESOS-832:
---------------------------------------

https://reviews.apache.org/r/15778/

> Scheduler Driver should reject messages from a non-leading master.
> ------------------------------------------------------------------
>
>                 Key: MESOS-832
>                 URL: https://issues.apache.org/jira/browse/MESOS-832
>             Project: Mesos
>          Issue Type: Bug
>            Reporter: Benjamin Mahler
>            Assignee: Benjamin Mahler
>            Priority: Blocker
>              Labels: reliability
>
> This will act as a safeguard against a split-brain scenario, where a non-leading Master
still believes it is the leader.
> As an example, this can occur if the disk and network I/O stall on the leading Master.
In this event, most components cannot make progress, as they perform logging. However, components
that do not perform logging can continue to operate. Of particular interest is the SlaveObserver,
which will continue to operate and inform the Master that all slaves are unhealthy due to
the network being down on the Master.



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