@Override
        public void applyStartedShards(List<ShardRouting> startedShards, RoutingAllocation allocation) {
            // noop
        }

        @Override
        public void applyFailedShards(List<FailedShard> failedShards, RoutingAllocation allocation) {
            // noop
        }

        @Override
        public void allocateUnassigned(
            ShardRouting shardRouting,