[jira] [Created] (MESOS-681) Document known cases where updates can be lost.

["Benjamin Mahler (JIRA)" <ji...@apache.org>]

Benjamin Mahler created MESOS-681:
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             Summary: Document known cases where updates can be lost.
                 Key: MESOS-681
                 URL: https://issues.apache.org/jira/browse/MESOS-681
             Project: Mesos
          Issue Type: Task
            Reporter: Benjamin Mahler
             Fix For: 0.15.0


Once we have a Registrar in the master persistently storing slave information, there will remain a smaller number of scenarios where updates can be lost in the system. This ticket is to carefully think through and document these cases so that we can identify possible improvements.

For example, if a slave machine fails and is not brought back up, and the master fails over during this time. Then the master will send a slaveLost signal to the scheduler (but will not be able to send TASK_LOST for each individual task that was on the slave).

This way, framework developers will get a better sense of how reliable status updates are, and under what circumstances they may not be delivered.

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