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https://issues.apache.org/jira/browse/MESOS-3041?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Joseph Wu updated MESOS-3041:
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Comment: was deleted
(was: https://reviews.apache.org/r/37284/)
> Decline call does not include an optional "reason", in the Event/Call API
> -------------------------------------------------------------------------
>
> Key: MESOS-3041
> URL: https://issues.apache.org/jira/browse/MESOS-3041
> Project: Mesos
> Issue Type: Task
> Components: master
> Reporter: Joseph Wu
> Assignee: Joris Van Remoortere
> Labels: mesosphere
>
> In the Event/Call API, the Decline call is currently used by frameworks to
> reject resource offers.
> In the case of InverseOffers, the framework could give additional information
> to the operators and/or allocator, as to why the InverseOffer is declined.
> i.e. Suppose a cluster running some consensus algorithm is given an
> InverseOffer on one of its nodes. It may decline saying "Too few nodes" (or,
> more verbosely, "Specified InverseOffer would lower the number of active
> nodes below quorum").
> This change requires the following changes:
> * include/mesos/scheduler/scheduler.proto:
> {code}
> message Call {
> ...
> message Decline {
> repeated OfferID offer_ids = 1;
> optional Filters filters = 2;
> // Add this extra string for each OfferID
> // i.e. reasons[i] is for offer_ids[i]
> repeated string reasons = 3;
> }
> ...
> }
> {code}
> * src/master/master.cpp
> Change Master::decline to either store the reason, or log it.
> * Add a declineOffer overload in the (Mesos)SchedulerDriver with an optional
> "reason".
> ** Extend the interface in include/mesos/scheduler.hpp
> ** Add/change the declineOffer method in src/sched/sched.cpp
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