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Marco Massenzio updated MESOS-3042: ----------------------------------- Sprint: Mesosphere Sprint 16, Mesosphere Sprint 17 (was: Mesosphere Sprint 16) > Master/Allocator does not send InverseOffers to resources to be maintained > -------------------------------------------------------------------------- > > Key: MESOS-3042 > URL: https://issues.apache.org/jira/browse/MESOS-3042 > Project: Mesos > Issue Type: Task > Components: allocation, master > Reporter: Joseph Wu > Assignee: Joris Van Remoortere > Labels: mesosphere > > Offers are currently sent from master/allocator to framework via > ResourceOffersMessage's. InverseOffers, which are roughly equivalent to > negative Offers, can be sent in the same package. > In src/messages/messages.proto > {code} > message ResourceOffersMessage { > repeated Offer offers = 1; > repeated string pids = 2; > // New field with InverseOffers > repeated InverseOffer inverseOffers = 3; > } > {code} > Sent InverseOffers can be tracked in the master's local state: > i.e. In src/master/master.hpp: > {code} > struct Slave { > ... // Existing fields. > // Active InverseOffers on this slave. > // Similar pattern to the "offers" field > hashset<InverseOffer*> inverseOffers; > } > {code} > One actor (master or allocator) should populate the new InverseOffers field. > * In master (src/master/master.cpp) > ** Master::offer is where the ResourceOffersMessage and Offer object is > constructed. > ** The same method could also check for maintenance and send InverseOffers. > * In the allocator (src/master/allocator/mesos/hierarchical.hpp) > ** HierarchicalAllocatorProcess::allocate is where slave resources are > aggregated an sent off to the frameworks. > ** InverseOffers (i.e. negative resources) allocation could be calculated in > this method. > ** A change to Master::offer (i.e. the "offerCallback") may be necessary to > account for the negative resources. > Possible test(s): > * InverseOfferTest > ** Start master, slave, framework. > ** Accept resource offer, start task. > ** Set maintenance schedule to the future. > ** Check that InverseOffer(s) are sent to the framework. > ** Decline InverseOffer. > ** Check that more InverseOffer(s) are sent. > ** Accept InverseOffer. > ** Check that more InverseOffer(s) are sent. -- This message was sent by Atlassian JIRA (v6.3.4#6332)