private boolean taskMayBeCompletedImmediately(RemoteClusterControllerTask task) {
        // We cannot introduce a version barrier for tasks when we're not the master (and therefore will not publish new versions).
        return (!task.hasVersionAckDependency() || task.isFailed() || !isMaster);
    }
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