Benjamin Mahler created MESOS-7460:
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Summary: 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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