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https://issues.apache.org/jira/browse/MESOS-7460?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16003719#comment-16003719
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Michael Park commented on MESOS-7460:
-------------------------------------
Since the {{FrameworkInfo}} field in {{UpdateFrameworkMessage}} is new in
1.3.x, a non-{{MULTI_ROLE}} capable agent would simply ignore the field and
thus the framework's role will be preserved.
> UpdateFrameworkMessage may send a Framework role(s) change to a
> non-MULTI_ROLE agent.
> -------------------------------------------------------------------------------------
>
> Key: MESOS-7460
> URL: https://issues.apache.org/jira/browse/MESOS-7460
> Project: Mesos
> Issue Type: Bug
> Components: master
> Reporter: Benjamin Mahler
> Assignee: Michael Park
> Priority: Blocker
>
> When a framework is MULTI_ROLE capable, if the framework was previously
> running tasks on an old agent (non-MULTI_ROLE capable), the master *must*
> ensure the UpdateFramework message sent to this old agent preserves the
> framework's original role. Otherwise the agent will interpret the role to
> have changed, which can break things (e.g. not locate the reservations,
> volumes, etc).
> In addition, a framework without MULTI_ROLE has the ability to change their
> role. We'll need to change this to ensure that the {{role}} field is
> immutable and frameworks need to use the {{roles}} field with the MULTI_ROLE
> capability if they want to change their role.
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