Dario Rexin created MESOS-7898:
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Summary: Implement control message type that is handled with
higher priority
Key: MESOS-7898
URL: https://issues.apache.org/jira/browse/MESOS-7898
Project: Mesos
Issue Type: Improvement
Reporter: Dario Rexin
Assignee: Dario Rexin
Up until most recently libprocess was able to enqueue messages in the front of
the queue, so they would be processed before the other messages. The recent
changes adding concurrent queues removed this capability. One way to implement
this feature while keeping the mailbox lock free would be to use a second queue
in the mailbox that is only used for control messages. When dequeuing a message
this queue would be checked first, before the regular queue is considered. A
similar mailbox can be found in Akka:
http://doc.akka.io/docs/akka/2.5.3/scala/mailboxes.html
(UnboundedControlAwareMailbox).
Since not all processes need this capability and there will be an impact on
performance, we could consider making this an optional per-process
configuration.
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