Hey Dave, sorry about the confusion, but the "deprecation cycle" is happening: this change won't take place until 0.24 is out (as the title of this email states); this will obviously be captured in the update notes from 0.23 to 0.24: as you correctly pointed out, we wanted to give folks very early notice of the impending change.
The conversation has actually taken place on the MESOS-1988 ticket ( https://issues.apache.org/jira/browse/MESOS-1988) which also gets forwarded to the issues@ mailing list; this was also proposed and shepherded by Vinod, so I would recommend you follow up with him if you want to further clarify matters. In our limited understanding, this was an "undocumented" behavior so we would expect the impact to be minor and the suggested solution to be a more desirable behavior. Please also feel free to reach out to Ben H to discuss in greater depth. Thanks for being vigilant! *Marco Massenzio* *Distributed Systems Engineer* On Mon, Jun 22, 2015 at 9:38 PM, Dave Lester <[email protected]> wrote: > 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 > >
