[jira] [Created] (MESOS-2456) Add ability to reconcile only unknown tasks

["Connor Doyle (JIRA)" <ji...@apache.org>]

Connor Doyle created MESOS-2456:
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             Summary: Add ability to reconcile only unknown tasks
                 Key: MESOS-2456
                 URL: https://issues.apache.org/jira/browse/MESOS-2456
             Project: Mesos
          Issue Type: Improvement
          Components: master
    Affects Versions: 0.22.0
            Reporter: Connor Doyle
            Priority: Minor


Mesos currently provides a task reconciliation mechanism with two modes of operation:

# *Explicit*: status updates are sent back where the supplied task status is inconsistent with the master's knowledge.
# *Implicit*: status updates are sent back for all non-terminal tasks.

As mentioned in the [task reconciliation docs|http://mesos.apache.org/documentation/latest/reconciliation], both explicit and implicit reconciliation may be performed periodically to protect against data loss in the framework.  It may be useful to add a mechanism by which the scheduler can supply a collection of known tasks, inducing a status update for all non-terminal tasks unknown to the scheduler.



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