diff --git a/Cargo.lock b/Cargo.lock
index 50b11631c..286674a9c 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -3805,7 +3805,7 @@ dependencies = [
 [[package]]
 name = "fc-api"
 version = "1.0.0-dev"
-source = "git+https://github.com/darwinia-network/frontier?branch=polkadot-v1.7.2#cb1c8a774485c3fe1576281e2997cf2ff07f3c83"
+source = "git+https://github.com/darwinia-network/frontier?branch=polkadot-v1.7.2#1fb09fb677efda7db5a9a2cc1391a77b34876876"
 dependencies = [
  "async-trait",
  "fp-storage",
@@ -3817,7 +3817,7 @@ dependencies = [
 [[package]]
 name = "fc-consensus"
 version = "2.0.0-dev"
-source = "git+https://github.com/darwinia-network/frontier?branch=polkadot-v1.7.2#cb1c8a774485c3fe1576281e2997cf2ff07f3c83"
+source = "git+https://github.com/darwinia-network/frontier?branch=polkadot-v1.7.2#1fb09fb677efda7db5a9a2cc1391a77b34876876"
 dependencies = [
  "async-trait",
  "fp-consensus",
@@ -3833,7 +3833,7 @@ dependencies = [
 [[package]]
 name = "fc-db"
 version = "2.0.0-dev"
-source = "git+https://github.com/darwinia-network/frontier?branch=polkadot-v1.7.2#cb1c8a774485c3fe1576281e2997cf2ff07f3c83"
+source = "git+https://github.com/darwinia-network/frontier?branch=polkadot-v1.7.2#1fb09fb677efda7db5a9a2cc1391a77b34876876"
 dependencies = [
  "async-trait",
  "ethereum",
@@ -3864,7 +3864,7 @@ dependencies = [
 [[package]]
 name = "fc-mapping-sync"
 version = "2.0.0-dev"
-source = "git+https://github.com/darwinia-network/frontier?branch=polkadot-v1.7.2#cb1c8a774485c3fe1576281e2997cf2ff07f3c83"
+source = "git+https://github.com/darwinia-network/frontier?branch=polkadot-v1.7.2#1fb09fb677efda7db5a9a2cc1391a77b34876876"
 dependencies = [
  "fc-db",
  "fc-storage",
@@ -3887,7 +3887,7 @@ dependencies = [
 [[package]]
 name = "fc-rpc"
 version = "2.0.0-dev"
-source = "git+https://github.com/darwinia-network/frontier?branch=polkadot-v1.7.2#cb1c8a774485c3fe1576281e2997cf2ff07f3c83"
+source = "git+https://github.com/darwinia-network/frontier?branch=polkadot-v1.7.2#1fb09fb677efda7db5a9a2cc1391a77b34876876"
 dependencies = [
  "ethereum",
  "ethereum-types",
@@ -3942,7 +3942,7 @@ dependencies = [
 [[package]]
 name = "fc-rpc-core"
 version = "1.1.0-dev"
-source = "git+https://github.com/darwinia-network/frontier?branch=polkadot-v1.7.2#cb1c8a774485c3fe1576281e2997cf2ff07f3c83"
+source = "git+https://github.com/darwinia-network/frontier?branch=polkadot-v1.7.2#1fb09fb677efda7db5a9a2cc1391a77b34876876"
 dependencies = [
  "ethereum",
  "ethereum-types",
@@ -3957,7 +3957,7 @@ dependencies = [
 [[package]]
 name = "fc-storage"
 version = "1.0.0-dev"
-source = "git+https://github.com/darwinia-network/frontier?branch=polkadot-v1.7.2#cb1c8a774485c3fe1576281e2997cf2ff07f3c83"
+source = "git+https://github.com/darwinia-network/frontier?branch=polkadot-v1.7.2#1fb09fb677efda7db5a9a2cc1391a77b34876876"
 dependencies = [
  "ethereum",
  "ethereum-types",
@@ -4149,7 +4149,7 @@ dependencies = [
 [[package]]
 name = "fp-account"
 version = "1.0.0-dev"
-source = "git+https://github.com/darwinia-network/frontier?branch=polkadot-v1.7.2#cb1c8a774485c3fe1576281e2997cf2ff07f3c83"
+source = "git+https://github.com/darwinia-network/frontier?branch=polkadot-v1.7.2#1fb09fb677efda7db5a9a2cc1391a77b34876876"
 dependencies = [
  "hex",
  "impl-serde",
@@ -4168,7 +4168,7 @@ dependencies = [
 [[package]]
 name = "fp-consensus"
 version = "2.0.0-dev"
-source = "git+https://github.com/darwinia-network/frontier?branch=polkadot-v1.7.2#cb1c8a774485c3fe1576281e2997cf2ff07f3c83"
+source = "git+https://github.com/darwinia-network/frontier?branch=polkadot-v1.7.2#1fb09fb677efda7db5a9a2cc1391a77b34876876"
 dependencies = [
  "ethereum",
  "parity-scale-codec",
@@ -4180,7 +4180,7 @@ dependencies = [
 [[package]]
 name = "fp-ethereum"
 version = "1.0.0-dev"
-source = "git+https://github.com/darwinia-network/frontier?branch=polkadot-v1.7.2#cb1c8a774485c3fe1576281e2997cf2ff07f3c83"
+source = "git+https://github.com/darwinia-network/frontier?branch=polkadot-v1.7.2#1fb09fb677efda7db5a9a2cc1391a77b34876876"
 dependencies = [
  "ethereum",
  "ethereum-types",
@@ -4193,7 +4193,7 @@ dependencies = [
 [[package]]
 name = "fp-evm"
 version = "3.0.0-dev"
-source = "git+https://github.com/darwinia-network/frontier?branch=polkadot-v1.7.2#cb1c8a774485c3fe1576281e2997cf2ff07f3c83"
+source = "git+https://github.com/darwinia-network/frontier?branch=polkadot-v1.7.2#1fb09fb677efda7db5a9a2cc1391a77b34876876"
 dependencies = [
  "evm",
  "frame-support",
@@ -4209,7 +4209,7 @@ dependencies = [
 [[package]]
 name = "fp-rpc"
 version = "3.0.0-dev"
-source = "git+https://github.com/darwinia-network/frontier?branch=polkadot-v1.7.2#cb1c8a774485c3fe1576281e2997cf2ff07f3c83"
+source = "git+https://github.com/darwinia-network/frontier?branch=polkadot-v1.7.2#1fb09fb677efda7db5a9a2cc1391a77b34876876"
 dependencies = [
  "ethereum",
  "ethereum-types",
@@ -4226,7 +4226,7 @@ dependencies = [
 [[package]]
 name = "fp-self-contained"
 version = "1.0.0-dev"
-source = "git+https://github.com/darwinia-network/frontier?branch=polkadot-v1.7.2#cb1c8a774485c3fe1576281e2997cf2ff07f3c83"
+source = "git+https://github.com/darwinia-network/frontier?branch=polkadot-v1.7.2#1fb09fb677efda7db5a9a2cc1391a77b34876876"
 dependencies = [
  "frame-support",
  "parity-scale-codec",
@@ -4238,7 +4238,7 @@ dependencies = [
 [[package]]
 name = "fp-storage"
 version = "2.0.0"
-source = "git+https://github.com/darwinia-network/frontier?branch=polkadot-v1.7.2#cb1c8a774485c3fe1576281e2997cf2ff07f3c83"
+source = "git+https://github.com/darwinia-network/frontier?branch=polkadot-v1.7.2#1fb09fb677efda7db5a9a2cc1391a77b34876876"
 dependencies = [
  "parity-scale-codec",
  "serde",
@@ -8188,7 +8188,7 @@ dependencies = [
 [[package]]
 name = "pallet-ethereum"
 version = "4.0.0-dev"
-source = "git+https://github.com/darwinia-network/frontier?branch=polkadot-v1.7.2#cb1c8a774485c3fe1576281e2997cf2ff07f3c83"
+source = "git+https://github.com/darwinia-network/frontier?branch=polkadot-v1.7.2#1fb09fb677efda7db5a9a2cc1391a77b34876876"
 dependencies = [
  "ethereum",
  "ethereum-types",
@@ -8211,7 +8211,7 @@ dependencies = [
 [[package]]
 name = "pallet-evm"
 version = "6.0.0-dev"
-source = "git+https://github.com/darwinia-network/frontier?branch=polkadot-v1.7.2#cb1c8a774485c3fe1576281e2997cf2ff07f3c83"
+source = "git+https://github.com/darwinia-network/frontier?branch=polkadot-v1.7.2#1fb09fb677efda7db5a9a2cc1391a77b34876876"
 dependencies = [
  "environmental",
  "evm",
@@ -8237,7 +8237,7 @@ dependencies = [
 [[package]]
 name = "pallet-evm-precompile-blake2"
 version = "2.0.0-dev"
-source = "git+https://github.com/darwinia-network/frontier?branch=polkadot-v1.7.2#cb1c8a774485c3fe1576281e2997cf2ff07f3c83"
+source = "git+https://github.com/darwinia-network/frontier?branch=polkadot-v1.7.2#1fb09fb677efda7db5a9a2cc1391a77b34876876"
 dependencies = [
  "fp-evm",
 ]
@@ -8245,7 +8245,7 @@ dependencies = [
 [[package]]
 name = "pallet-evm-precompile-bls12381"
 version = "1.0.0-dev"
-source = "git+https://github.com/darwinia-network/frontier?branch=polkadot-v1.7.2#cb1c8a774485c3fe1576281e2997cf2ff07f3c83"
+source = "git+https://github.com/darwinia-network/frontier?branch=polkadot-v1.7.2#1fb09fb677efda7db5a9a2cc1391a77b34876876"
 dependencies = [
  "ark-bls12-381",
  "ark-ec",
@@ -8257,7 +8257,7 @@ dependencies = [
 [[package]]
 name = "pallet-evm-precompile-bn128"
 version = "2.0.0-dev"
-source = "git+https://github.com/darwinia-network/frontier?branch=polkadot-v1.7.2#cb1c8a774485c3fe1576281e2997cf2ff07f3c83"
+source = "git+https://github.com/darwinia-network/frontier?branch=polkadot-v1.7.2#1fb09fb677efda7db5a9a2cc1391a77b34876876"
 dependencies = [
  "fp-evm",
  "sp-core",
@@ -8287,7 +8287,7 @@ dependencies = [
 [[package]]
 name = "pallet-evm-precompile-dispatch"
 version = "2.0.0-dev"
-source = "git+https://github.com/darwinia-network/frontier?branch=polkadot-v1.7.2#cb1c8a774485c3fe1576281e2997cf2ff07f3c83"
+source = "git+https://github.com/darwinia-network/frontier?branch=polkadot-v1.7.2#1fb09fb677efda7db5a9a2cc1391a77b34876876"
 dependencies = [
  "fp-evm",
  "frame-support",
@@ -8299,7 +8299,7 @@ dependencies = [
 [[package]]
 name = "pallet-evm-precompile-modexp"
 version = "2.0.0-dev"
-source = "git+https://github.com/darwinia-network/frontier?branch=polkadot-v1.7.2#cb1c8a774485c3fe1576281e2997cf2ff07f3c83"
+source = "git+https://github.com/darwinia-network/frontier?branch=polkadot-v1.7.2#1fb09fb677efda7db5a9a2cc1391a77b34876876"
 dependencies = [
  "fp-evm",
  "num",
@@ -8308,7 +8308,7 @@ dependencies = [
 [[package]]
 name = "pallet-evm-precompile-simple"
 version = "2.0.0-dev"
-source = "git+https://github.com/darwinia-network/frontier?branch=polkadot-v1.7.2#cb1c8a774485c3fe1576281e2997cf2ff07f3c83"
+source = "git+https://github.com/darwinia-network/frontier?branch=polkadot-v1.7.2#1fb09fb677efda7db5a9a2cc1391a77b34876876"
 dependencies = [
  "fp-evm",
  "ripemd",
@@ -10528,7 +10528,7 @@ dependencies = [
 [[package]]
 name = "precompile-utils"
 version = "0.1.0"
-source = "git+https://github.com/darwinia-network/frontier?branch=polkadot-v1.7.2#cb1c8a774485c3fe1576281e2997cf2ff07f3c83"
+source = "git+https://github.com/darwinia-network/frontier?branch=polkadot-v1.7.2#1fb09fb677efda7db5a9a2cc1391a77b34876876"
 dependencies = [
  "derive_more",
  "environmental",
@@ -10585,7 +10585,7 @@ dependencies = [
 [[package]]
 name = "precompile-utils-macro"
 version = "0.1.0"
-source = "git+https://github.com/darwinia-network/frontier?branch=polkadot-v1.7.2#cb1c8a774485c3fe1576281e2997cf2ff07f3c83"
+source = "git+https://github.com/darwinia-network/frontier?branch=polkadot-v1.7.2#1fb09fb677efda7db5a9a2cc1391a77b34876876"
 dependencies = [
  "case",
  "num_enum 0.7.3",
diff --git a/node/src/service/frontier.rs b/node/src/service/frontier.rs
index 80367c7a8..d525f80b4 100644
--- a/node/src/service/frontier.rs
+++ b/node/src/service/frontier.rs
@@ -53,7 +53,7 @@ pub fn spawn_tasks<B, BE, C>(
 	task_manager: &TaskManager,
 	client: Arc<C>,
 	backend: Arc<BE>,
-	frontier_backend: fc_db::Backend<B>,
+	frontier_backend: Arc<fc_db::Backend<B, C>>,
 	filter_pool: Option<FilterPool>,
 	overrides: Arc<OverrideHandle<B>>,
 	fee_history_cache: FeeHistoryCache,
@@ -79,7 +79,7 @@ where
 	BE: 'static + sc_client_api::backend::Backend<B>,
 	BE::State: sc_client_api::backend::StateBackend<Hashing>,
 {
-	match frontier_backend.clone() {
+	match &*frontier_backend {
 		fc_db::Backend::KeyValue(bd) => {
 			task_manager.spawn_essential_handle().spawn(
 				"frontier-mapping-sync-worker",
@@ -90,7 +90,7 @@ where
 					client.clone(),
 					backend.clone(),
 					overrides.clone(),
-					Arc::new(bd),
+					bd.clone(),
 					3,
 					0,
 					fc_mapping_sync::SyncStrategy::Parachain,
@@ -107,10 +107,10 @@ where
 				fc_mapping_sync::sql::SyncWorker::run(
 					client.clone(),
 					backend.clone(),
-					Arc::new(bd),
+					bd.clone(),
 					client.import_notification_stream(),
 					fc_mapping_sync::sql::SyncWorkerConfig {
-						read_notification_timeout: Duration::from_secs(10),
+						read_notification_timeout: Duration::from_secs(30),
 						check_indexed_blocks_interval: Duration::from_secs(60),
 					},
 					fc_mapping_sync::SyncStrategy::Parachain,
@@ -168,9 +168,9 @@ where
 				let (debug_task, debug_requester) = DebugHandler::task(
 					Arc::clone(&client),
 					Arc::clone(&backend),
-					match frontier_backend {
-						fc_db::Backend::KeyValue(bd) => Arc::new(bd),
-						fc_db::Backend::Sql(bd) => Arc::new(bd),
+					match &*frontier_backend {
+						fc_db::Backend::KeyValue(bd) => bd.clone(),
+						fc_db::Backend::Sql(bd) => bd.clone(),
 					},
 					Arc::clone(&permit_pool),
 					Arc::clone(&overrides),
@@ -216,7 +216,7 @@ pub(crate) fn backend<B, BE, C>(
 	client: Arc<C>,
 	config: &sc_service::Configuration,
 	eth_rpc_config: EthRpcConfig,
-) -> Result<fc_db::Backend<B>, String>
+) -> Result<fc_db::Backend<B, C>, String>
 where
 	B: 'static + sp_runtime::traits::Block<Hash = Hash>,
 	BE: 'static + sc_client_api::backend::Backend<B>,
@@ -229,9 +229,9 @@ where
 	let db_config_dir = db_config_dir(config);
 	let overrides = fc_storage::overrides_handle(client.clone());
 	match eth_rpc_config.frontier_backend_type {
-		FrontierBackendType::KeyValue => Ok(fc_db::Backend::<B>::KeyValue(
+		FrontierBackendType::KeyValue => Ok(fc_db::Backend::<B, C>::KeyValue(Arc::new(
 			fc_db::kv::Backend::open(Arc::clone(&client), &config.database, &db_config_dir)?,
-		)),
+		))),
 		FrontierBackendType::Sql => {
 			let db_path = db_config_dir.join("sql");
 			std::fs::create_dir_all(&db_path).expect("failed creating sql db directory");
@@ -251,7 +251,7 @@ where
 				overrides,
 			))
 			.unwrap_or_else(|err| panic!("failed creating sql backend: {:?}", err));
-			Ok(fc_db::Backend::<B>::Sql(backend))
+			Ok(fc_db::Backend::<B, C>::Sql(Arc::new(backend)))
 		},
 	}
 }
diff --git a/node/src/service/mod.rs b/node/src/service/mod.rs
index 2207ef42c..79e7e3a52 100644
--- a/node/src/service/mod.rs
+++ b/node/src/service/mod.rs
@@ -78,7 +78,7 @@ type Service<RuntimeApi> = sc_service::PartialComponents<
 	sc_consensus::DefaultImportQueue<Block>,
 	sc_transaction_pool::FullPool<Block, FullClient<RuntimeApi>>,
 	(
-		fc_db::Backend<Block>,
+		fc_db::Backend<Block, FullClient<RuntimeApi>>,
 		Option<fc_rpc_core::types::FilterPool>,
 		fc_rpc_core::types::FeeHistoryCache,
 		fc_rpc_core::types::FeeHistoryCacheLimit,
@@ -308,6 +308,7 @@ where
 		)
 		.await
 		.map_err(|e| sc_service::Error::Application(Box::new(e) as Box<_>))?;
+	let frontier_backend = Arc::new(frontier_backend);
 	let validator = parachain_config.role.is_authority();
 	let prometheus_registry = parachain_config.prometheus_registry().cloned();
 	let import_queue_service = import_queue.service();
@@ -382,7 +383,6 @@ where
 		let pool = transaction_pool.clone();
 		let network = network.clone();
 		let filter_pool = filter_pool.clone();
-		let frontier_backend = frontier_backend.clone();
 		let overrides = overrides;
 		let fee_history_cache = fee_history_cache.clone();
 		let max_past_logs = eth_rpc_config.max_past_logs;
@@ -411,9 +411,9 @@ where
 				network: network.clone(),
 				sync: sync_service.clone(),
 				filter_pool: filter_pool.clone(),
-				frontier_backend: match frontier_backend.clone() {
-					fc_db::Backend::KeyValue(bd) => Arc::new(bd),
-					fc_db::Backend::Sql(bd) => Arc::new(bd),
+				frontier_backend: match &*frontier_backend {
+					fc_db::Backend::KeyValue(bd) => bd.clone(),
+					fc_db::Backend::Sql(bd) => bd.clone(),
 				},
 				max_past_logs,
 				fee_history_cache: fee_history_cache.clone(),
@@ -754,6 +754,7 @@ where
 		);
 	}
 
+	let frontier_backend = Arc::new(frontier_backend);
 	let force_authoring = config.force_authoring;
 	let backoff_authoring_blocks = None::<()>;
 	let slot_duration = sc_consensus_aura::slot_duration(&*client)?;
@@ -917,9 +918,9 @@ where
 				network: network.clone(),
 				sync: sync_service.clone(),
 				filter_pool: filter_pool.clone(),
-				frontier_backend: match frontier_backend.clone() {
-					fc_db::Backend::KeyValue(bd) => Arc::new(bd),
-					fc_db::Backend::Sql(bd) => Arc::new(bd),
+				frontier_backend: match &*frontier_backend {
+					fc_db::Backend::KeyValue(bd) => bd.clone(),
+					fc_db::Backend::Sql(bd) => bd.clone(),
 				},
 				max_past_logs,
 				fee_history_cache: fee_history_cache.clone(),