Ceph

Trying with the Luminous RC it seems that the crush_location_hook isn't invoked.

The OSDs always seem to add themselves to root=default host=xyz

Looking at the source code the culprit seems to be in crush/CrushLocation.h

public:
  CrushLocation(CephContext *c) : cct(c) {
    update_from_conf();
  }

  int update_from_conf();  ///< refresh from config
  int update_from_hook();  ///< call hook, if present
  int init_on_startup();

  std::multimap<std::string,std::string> get_location() {
    std::lock_guard<std::mutex> l(lock);
    return loc;
  }
};

update_from_conf() is called in the constructor, but to me it seems that init_on_startup() should be called