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https://issues.apache.org/jira/browse/MESOS-8088?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jie Yu reassigned MESOS-8088:
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Assignee: Benjamin Bannier
> Introduce Lamport timestamp for offer operations.
> -------------------------------------------------
>
> Key: MESOS-8088
> URL: https://issues.apache.org/jira/browse/MESOS-8088
> Project: Mesos
> Issue Type: Task
> Reporter: Jie Yu
> Assignee: Benjamin Bannier
> Labels: storage
>
> We need to use Lamport clock
> (https://en.wikipedia.org/wiki/Lamport_timestamps) to establish partial
> ordering between offer operation, and the resources the operation is
> operating on.
> It is used to establish happens before relations so that RPs can reject those
> operations that applies to a stale snapshot of the resources due to
> speculation failures.
> See more details in this doc:
> https://docs.google.com/document/d/1RrrLVATZUyaURpEOeGjgxA6ccshuLo94G678IbL-Yco/edit#
> Given that the Lamport clock needs to be transferred between agent and
> masters, it needs to be serialized to protobuf. We probably needs to define
> the following methods for it:
> ```
> merge(...); // Take a max between the two.
> increment();
> operation<(...);
> copy and assignment operator
> ```
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