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https://issues.apache.org/jira/browse/MESOS-764?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Benjamin Mahler updated MESOS-764:
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Description:
Design document:
https://cwiki.apache.org/confluence/display/MESOS/Registrar+Design+Document
Using the registrar 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.
was:
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.
> Implement Master persistence 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
> Labels: twitter
> Fix For: 0.18.0
>
>
> Design document:
> https://cwiki.apache.org/confluence/display/MESOS/Registrar+Design+Document
> Using the registrar 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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