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From "Yan Xu (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (MESOS-5368) Consider introducing persistent agent ID
Date Wed, 30 Nov 2016 18:06:58 GMT

    [ https://issues.apache.org/jira/browse/MESOS-5368?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15709289#comment-15709289
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Yan Xu commented on MESOS-5368:
-------------------------------

Are these two related? MESOS-1739 is about keeping the same agent "session" ID and (probably
more importantly,) the tasks. This ticket is about a new ID that's stable across "session"
IDs. I guess you have a higher level use case that require both? :)

> Consider introducing persistent agent ID
> ----------------------------------------
>
>                 Key: MESOS-5368
>                 URL: https://issues.apache.org/jira/browse/MESOS-5368
>             Project: Mesos
>          Issue Type: Improvement
>            Reporter: Neil Conway
>              Labels: mesosphere
>
> Currently, agent IDs identify a single "session" by an agent: that is, an agent receives
an agent ID when it registers with the master; it reuses that agent ID if it disconnects and
successfully reregisters; if the agent shuts down and restarts, it registers anew and receives
a new agent ID.
> It would be convenient to have a "persistent agent ID" that remains the same for the
duration of a given agent {{work_dir}}. This would mean that a given persistent volume would
not migrate between different persistent agent IDs over time, for example (see MESOS-4894).
If we supported permanently removing an agent from the cluster (i.e., the {{work_dir}} and
any volumes used by the agent will never be reused), we could use the persistent agent ID
to report which agent has been removed.



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