Kapil Arya created MESOS-4916:
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Summary: Allow modules to express if they are multi-instantiable
and thread safe.
Key: MESOS-4916
URL: https://issues.apache.org/jira/browse/MESOS-4916
Project: Mesos
Issue Type: Task
Reporter: Kapil Arya
A module might be instantiated multiple time (e.g., multiple schedulers in the
same Java process instantiating an authenticator module) within the same
process. The current mechanism doesn't provide a way through the module API to
forbid multiple instantiations. It is up to the module to check and return
error on prior instantiation.
Along similar lines, a module should be able to express thread-safety concerns.
Typically, a module running in Master/Agent doesn't have to be concerned about
thread safety if it uses libprocess API. However, we should investigate how it
plays in the scheduler environment.
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