private boolean updateMasterElectionState() {
        try {
            return masterElectionHandler.watchMasterElection(database, databaseContext);
        } catch (Exception e) {
            context.log(logger, Level.WARNING, "Failed to watch master election: " + e);
        }
        return false;
    }
This is called when the options field has been set to a new set of options
clustercontroller-core/src/main/java/com/yahoo/vespa/clustercontroller/core/FleetController.java