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Posted to dev@mesos.apache.org by "Benjamin Mahler (JIRA)" <ji...@apache.org> on 2013/10/24 01:40:44 UTC

[jira] [Created] (MESOS-764) Implement Master state recovery using the registrar.

Benjamin Mahler created MESOS-764:
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             Summary: Implement Master state recovery using the registrar.
                 Key: MESOS-764
                 URL: https://issues.apache.org/jira/browse/MESOS-764
             Project: Mesos
          Issue Type: Improvement
          Components: master
            Reporter: Benjamin Mahler
            Assignee: Benjamin Mahler
             Fix For: 0.16.0


Using the registrar backed by ZooKeeper as a means for persistent, highly available storage of the slave information will allow us to recover slave information when a master is elected as a leader.

Having persistent slave information will allow the master to answer reconciliation requests from frameworks in a correct and reliable manner. There are currently cases where we cannot answer reconciliation requests in order to avoid providing an incorrect answer (hints in MESOS-295).

It will also ensure that when we inform the world that a slave is removed, we can enforce that as truth even with the presence of dropped messages and master failovers.



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