[jira] [Commented] (MESOS-986) Add versioning to messages.

["Adam B (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/MESOS-986?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14486943#comment-14486943 ] 

Adam B commented on MESOS-986:
------------------------------

Rather than adding versioning to all messages, maybe just the registration messages would be sufficient, then the masterinfo/slaveinfo/frameworkinfo would contain that component's version. Of course, we'd have to actually update these fields on reregistration (think MESOS-703).

> Add versioning to messages.
> ---------------------------
>
>                 Key: MESOS-986
>                 URL: https://issues.apache.org/jira/browse/MESOS-986
>             Project: Mesos
>          Issue Type: Improvement
>            Reporter: Benjamin Mahler
>
> Message versioning in Mesos provides a number of benefits:
> (1) Prevent incompatible version combinations. For example, we want to reject slaves that are > 1 version behind the master.
> (2) The biggest win is providing the ability to determine behavior based on the cross-component versioning. For example, in MESOS-1668 we wanted the master to send a different ping message based on the version of the slave. In MESOS-1696, we wanted to perform reconciliation in the master based on the version of the slave. In both cases, when we don't have the version, we have to either rely on hacks/tricks, or add additional phases.



--
This message was sent by Atlassian JIRA
(v6.3.4#6332)