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From Dave Lester <d...@davelester.org>
Subject Re: [Breaking Change 0.24, MESOS 1988] Silently ignore launchTask/acceptOffers calls when disconnected
Date Tue, 23 Jun 2015 04:38:07 GMT
Hi Anand,

Was there a discussion thread on this?

Breaking changes should only be introduced when the community has had a
chance to discuss its impact and any necessary deprecation cycle -- I
didn't see a discussion on the relevant thread, but perhaps I missed
something?

Thanks,
Dave

On Mon, Jun 22, 2015, at 05:23 PM, Anand Mazumdar wrote:
> Hi All,
> 
> We intend to introduce a breaking change [1] in the driver to silently
> ignore launchTasks/acceptOffers(…) calls when disconnected from the
> master in 0.24. The previous behavior was to send out “TASK_LOST”
> messages since there was no way to know that these task launches were
> dropped. However , with the advent of Task Reconciliation, this feature
> is redundant. Other calls like killTask/requestResource et al already had
> this behavior.
> 
> If your existing framework relied on this behavior, I would encourage you
> to use the Task Reconciliation API [2] in lieu of this feature/hack. Let
> me know if you have any queries/concerns.
> 
> Links:
> [1] Tracking JIRA: https://issues.apache.org/jira/browse/MESOS-1988
> <https://issues.apache.org/jira/browse/MESOS-1988>
> [2] Task Reconciliation API :
> http://mesos.apache.org/documentation/latest/reconciliation/
> <http://mesos.apache.org/documentation/latest/reconciliation/>
> 
> -anand


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