Method updateUnavailability

src/master/allocator/mesos/hierarchical.cpp:1462–1491

void HierarchicalAllocatorProcess::updateUnavailability(
    const SlaveID& slaveId,
    const Option<Unavailability>& unavailability)
{
  CHECK(initialized);

  Slave& slave = *CHECK_NOTNONE(getSlave(slaveId));

  // NOTE: We currently implement maintenance in the allocator to be able to
  // leverage state and features such as the FrameworkSorter and OfferFilter.

  // We explicitly remove all filters for the inverse offers of this slave. We
  // do this because we want to force frameworks to reassess the calculations
  // they have made to respond to the inverse offer. Unavailability of a slave
  // can have a large effect on failure domain calculations and inter-leaved
  // unavailability schedules.
  foreachvalue (Framework& framework, frameworks) {
    framework.inverseOfferFilters.erase(slaveId);
  }

  // Remove any old unavailability.
  slave.maintenance = None();

  // If we have a new unavailability.
  if (unavailability.isSome()) {
    slave.maintenance = Slave::Maintenance(unavailability.get());
  }

  generateOffers(slaveId);
}


void HierarchicalAllocatorProcess::updateInverseOffer(