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// Copyright 2024 Moonbeam foundation
// This file is part of Moonbeam.
// Moonbeam is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
// Moonbeam is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
// You should have received a copy of the GNU General Public License
// along with Moonbeam. If not, see <http://www.gnu.org/licenses/>.
use crate::{
lazy_loading, open_frontier_backend, rpc, set_prometheus_registry, BlockImportPipeline,
ClientCustomizations, FrontierBlockImport, HostFunctions, PartialComponentsResult,
PendingConsensusDataProvider, RuntimeApiCollection, SOFT_DEADLINE_PERCENT,
};
use cumulus_client_parachain_inherent::{MockValidationDataInherentDataProvider, MockXcmConfig};
use cumulus_primitives_core::{relay_chain, BlockT, ParaId};
use cumulus_primitives_parachain_inherent::ParachainInherentData;
use cumulus_test_relay_sproof_builder::RelayStateSproofBuilder;
use fc_rpc::StorageOverrideHandler;
use fc_rpc_core::types::{FeeHistoryCache, FilterPool};
use futures::{FutureExt, StreamExt};
use moonbeam_cli_opt::{EthApi as EthApiCmd, LazyLoadingConfig, RpcConfig};
use moonbeam_core_primitives::{Block, Hash};
use nimbus_consensus::NimbusManualSealConsensusDataProvider;
use nimbus_primitives::NimbusId;
use parity_scale_codec::Encode;
use polkadot_primitives::{
AbridgedHostConfiguration, AsyncBackingParams, PersistedValidationData, Slot, UpgradeGoAhead,
use sc_chain_spec::{get_extension, BuildGenesisBlock, GenesisBlockBuilder};
use sc_client_api::{Backend, BadBlocks, ExecutorProvider, ForkBlocks, StorageProvider};
use sc_executor::{HeapAllocStrategy, RuntimeVersionOf, WasmExecutor, DEFAULT_HEAP_ALLOC_STRATEGY};
use sc_network::config::FullNetworkConfiguration;
use sc_network::NetworkBackend;
use sc_network_common::sync::SyncMode;
use sc_service::{
error::Error as ServiceError, ClientConfig, Configuration, Error, KeystoreContainer,
PartialComponents, TaskManager,
use sc_telemetry::{TelemetryHandle, TelemetryWorker};
use sc_transaction_pool_api::OffchainTransactionPoolFactory;
use sp_api::ConstructRuntimeApi;
use sp_blockchain::HeaderBackend;
use sp_core::traits::CodeExecutor;
use sp_core::{twox_128, H256};
use sp_runtime::traits::NumberFor;
use sp_storage::StorageKey;
use std::collections::BTreeMap;
use std::str::FromStr;
use std::sync::{Arc, Mutex};
use std::time::Duration;
pub mod backend;
pub mod call_executor;
mod client;
mod helpers;
mod lock;
mod state_overrides;
mod wasm_override;
mod wasm_substitutes;
pub const LAZY_LOADING_LOG_TARGET: &'static str = "lazy-loading";
/// Lazy loading client type.
pub type TLazyLoadingClient<TBl, TRtApi, TExec> = sc_service::client::Client<
TLazyLoadingBackend<TBl>,
TLazyLoadingCallExecutor<TBl, TExec>,
TBl,
TRtApi,
>;
/// Lazy loading client backend type.
pub type TLazyLoadingBackend<TBl> = backend::Backend<TBl>;
/// Lazy loading client call executor type.
pub type TLazyLoadingCallExecutor<TBl, TExec> =
call_executor::LazyLoadingCallExecutor<TBl, TLazyLoadingBackend<TBl>, TExec>;
/// Lazy loading parts type.
pub type TLazyLoadingParts<TBl, TRtApi, TExec> = (
TLazyLoadingClient<TBl, TRtApi, TExec>,
Arc<TLazyLoadingBackend<TBl>>,
KeystoreContainer,
TaskManager,
);
type LazyLoadingClient<RuntimeApi> =
TLazyLoadingClient<Block, RuntimeApi, WasmExecutor<HostFunctions>>;
type LazyLoadingBackend = TLazyLoadingBackend<Block>;
/// Create the initial parts of a lazy loading node.
pub fn new_lazy_loading_parts<TBl, TRtApi, TExec>(
config: &mut Configuration,
lazy_loading_config: &LazyLoadingConfig,
telemetry: Option<TelemetryHandle>,
executor: TExec,
) -> Result<TLazyLoadingParts<TBl, TRtApi, TExec>, Error>
where
TBl: BlockT + sp_runtime::DeserializeOwned,
TBl::Hash: From<H256>,
TExec: CodeExecutor + RuntimeVersionOf + Clone,
{
let backend = backend::new_lazy_loading_backend(config, &lazy_loading_config)?;
let genesis_block_builder = GenesisBlockBuilder::new(
config.chain_spec.as_storage_builder(),
!config.no_genesis(),
backend.clone(),
executor.clone(),
)?;
new_lazy_loading_parts_with_genesis_builder(
config,
lazy_loading_config,
telemetry,
executor,
backend,
genesis_block_builder,
)
}
pub fn new_lazy_loading_parts_with_genesis_builder<TBl, TRtApi, TExec, TBuildGenesisBlock>(
config: &Configuration,
backend: Arc<TLazyLoadingBackend<TBl>>,
genesis_block_builder: TBuildGenesisBlock,
TBuildGenesisBlock:
BuildGenesisBlock<
BlockImportOperation = <TLazyLoadingBackend<TBl> as sc_client_api::backend::Backend<
>>::BlockImportOperation,
>,
let keystore_container = KeystoreContainer::new(&config.keystore)?;
let task_manager = {
let registry = config.prometheus_config.as_ref().map(|cfg| &cfg.registry);
TaskManager::new(config.tokio_handle.clone(), registry)?
let chain_spec = &config.chain_spec;
let fork_blocks = get_extension::<ForkBlocks<TBl>>(chain_spec.extensions())
.cloned()
.unwrap_or_default();
let bad_blocks = get_extension::<BadBlocks<TBl>>(chain_spec.extensions())
let client = {
let extensions = sc_client_api::execution_extensions::ExecutionExtensions::new(
None,
Arc::new(executor.clone()),
let wasm_runtime_substitutes = config
.chain_spec
.code_substitutes()
.into_iter()
.map(|(n, c)| {
let number = NumberFor::<TBl>::from_str(&n).map_err(|_| {
Error::Application(Box::from(format!(
"Failed to parse `{}` as block number for code substitutes. \
In an old version the key for code substitute was a block hash. \
Please update the chain spec to a version that is compatible with your node.",
n
)))
})?;
Ok((number, c))
})
.collect::<Result<std::collections::HashMap<_, _>, Error>>()?;
let client = client::new_client(
fork_blocks,
bad_blocks,
extensions,
Box::new(task_manager.spawn_handle()),
config
.prometheus_config
.as_ref()
.map(|config| config.registry.clone()),
ClientConfig {
offchain_worker_enabled: config.offchain_worker.enabled,
offchain_indexing_api: config.offchain_worker.indexing_enabled,
wasmtime_precompiled: config.wasmtime_precompiled.clone(),
wasm_runtime_overrides: config.wasm_runtime_overrides.clone(),
no_genesis: matches!(
config.network.sync_mode,
SyncMode::LightState { .. } | SyncMode::Warp { .. }
),
wasm_runtime_substitutes,
enable_import_proof_recording: false,
},
client
Ok((client, backend, keystore_container, task_manager))
/// Builds the PartialComponents for a lazy loading node.
#[allow(clippy::type_complexity)]
pub fn new_lazy_loading_partial<RuntimeApi, Customizations>(
rpc_config: &RpcConfig,
) -> PartialComponentsResult<LazyLoadingClient<RuntimeApi>, LazyLoadingBackend>
RuntimeApi: ConstructRuntimeApi<Block, LazyLoadingClient<RuntimeApi>> + Send + Sync + 'static,
RuntimeApi::RuntimeApi: RuntimeApiCollection,
Customizations: ClientCustomizations + 'static,
set_prometheus_registry(config, rpc_config.no_prometheus_prefix)?;
// Use ethereum style for subscription ids
config.rpc_id_provider = Some(Box::new(fc_rpc::EthereumSubIdProvider));
let telemetry = config
.telemetry_endpoints
.clone()
.filter(|x| !x.is_empty())
.map(|endpoints| -> Result<_, sc_telemetry::Error> {
let worker = TelemetryWorker::new(16)?;
let telemetry = worker.handle().new_telemetry(endpoints);
Ok((worker, telemetry))
.transpose()?;
let heap_pages = config
.default_heap_pages
.map_or(DEFAULT_HEAP_ALLOC_STRATEGY, |h| HeapAllocStrategy::Static {
extra_pages: h as _,
});
let mut wasm_builder = WasmExecutor::builder()
.with_execution_method(config.wasm_method)
.with_onchain_heap_alloc_strategy(heap_pages)
.with_offchain_heap_alloc_strategy(heap_pages)
.with_ignore_onchain_heap_pages(true)
.with_max_runtime_instances(config.max_runtime_instances)
.with_runtime_cache_size(config.runtime_cache_size);
if let Some(ref wasmtime_precompiled_path) = config.wasmtime_precompiled {
wasm_builder = wasm_builder.with_wasmtime_precompiled_path(wasmtime_precompiled_path);
let executor = wasm_builder.build();
let (client, backend, keystore_container, task_manager) =
new_lazy_loading_parts::<Block, RuntimeApi, _>(
telemetry.as_ref().map(|(_, telemetry)| telemetry.handle()),
if let Some(block_number) = Customizations::first_block_number_compatible_with_ed25519_zebra() {
.execution_extensions()
.set_extensions_factory(sc_client_api::execution_extensions::ExtensionBeforeBlock::<
Block,
sp_io::UseDalekExt,
>::new(block_number));
let client = Arc::new(client);
let telemetry_worker_handle = telemetry.as_ref().map(|(worker, _)| worker.handle());
let telemetry = telemetry.map(|(worker, telemetry)| {
task_manager
.spawn_handle()
.spawn("telemetry", None, worker.run());
telemetry
let maybe_select_chain = Some(sc_consensus::LongestChain::new(backend.clone()));
let transaction_pool = sc_transaction_pool::BasicPool::new_full(
config.transaction_pool.clone(),
config.role.is_authority().into(),
config.prometheus_registry(),
task_manager.spawn_essential_handle(),
client.clone(),
let filter_pool: Option<FilterPool> = Some(Arc::new(Mutex::new(BTreeMap::new())));
let fee_history_cache: FeeHistoryCache = Arc::new(Mutex::new(BTreeMap::new()));
let frontier_backend = Arc::new(open_frontier_backend(client.clone(), config, rpc_config)?);
let frontier_block_import = FrontierBlockImport::new(client.clone(), client.clone());
let create_inherent_data_providers = move |_, _| async move {
let time = sp_timestamp::InherentDataProvider::from_system_time();
// Create a dummy parachain inherent data provider which is required to pass
// the checks by the para chain system. We use dummy values because in the 'pending context'
// neither do we have access to the real values nor do we need them.
let (relay_parent_storage_root, relay_chain_state) =
RelayStateSproofBuilder::default().into_state_root_and_proof();
let vfp = PersistedValidationData {
// This is a hack to make `cumulus_pallet_parachain_system::RelayNumberStrictlyIncreases`
// happy. Relay parent number can't be bigger than u32::MAX.
relay_parent_number: u32::MAX,
relay_parent_storage_root,
..Default::default()
let parachain_inherent_data = ParachainInherentData {
validation_data: vfp,
relay_chain_state,
downward_messages: Default::default(),
horizontal_messages: Default::default(),
Ok((time, parachain_inherent_data))
let import_queue = nimbus_consensus::import_queue(
frontier_block_import.clone(),
create_inherent_data_providers,
&task_manager.spawn_essential_handle(),
false,
let block_import = BlockImportPipeline::Dev(frontier_block_import);
Ok(PartialComponents {
client,
import_queue,
keystore_container,
task_manager,
transaction_pool,
select_chain: maybe_select_chain,
other: (
block_import,
filter_pool,
telemetry_worker_handle,
frontier_backend,
fee_history_cache,
/// Builds a new lazy loading service. This service uses manual seal, and mocks
/// the parachain inherent.
#[sc_tracing::logging::prefix_logs_with("Lazy loading 🌗")]
pub async fn new_lazy_loading_service<RuntimeApi, Customizations, Net>(
mut config: Configuration,
_author_id: Option<NimbusId>,
sealing: moonbeam_cli_opt::Sealing,
rpc_config: RpcConfig,
lazy_loading_config: LazyLoadingConfig,
hwbench: Option<sc_sysinfo::HwBench>,
) -> Result<TaskManager, ServiceError>
Net: NetworkBackend<Block, Hash>,
use async_io::Timer;
use futures::Stream;
use sc_consensus_manual_seal::{run_manual_seal, EngineCommand, ManualSealParams};
let sc_service::PartialComponents {
mut task_manager,
other:
(
block_import_pipeline,
mut telemetry,
_telemetry_worker_handle,
} = lazy_loading::new_lazy_loading_partial::<RuntimeApi, Customizations>(
&mut config,
&rpc_config,
&lazy_loading_config,
let start_delay = 10;
let lazy_loading_startup_disclaimer = format!(
r#"
You are now running the Moonbeam client in lazy loading mode, where data is retrieved
from a live RPC node on demand.
Using remote state from: {rpc}
Forking from block: {fork_block}
To ensure the client works properly, please note the following:
1. *Avoid Throttling*: Ensure that the backing RPC node is not limiting the number of
requests, as this can prevent the lazy loading client from functioning correctly;
2. *Be Patient*: As the client may take approximately 20 times longer than normal to
retrieve and process the necessary data for the requested operation.
The service will start in {start_delay} seconds...
"#,
rpc = lazy_loading_config.state_rpc,
fork_block = backend.fork_checkpoint.number
log::warn!(
"{}",
ansi_term::Colour::Yellow.paint(lazy_loading_startup_disclaimer)
tokio::time::sleep(Duration::from_secs(start_delay)).await;
let block_import = if let BlockImportPipeline::Dev(block_import) = block_import_pipeline {
block_import
} else {
return Err(ServiceError::Other(
"Block import pipeline is not dev".to_string(),
));
let net_config = FullNetworkConfiguration::<_, _, Net>::new(&config.network);
let metrics = Net::register_notification_metrics(
config.prometheus_config.as_ref().map(|cfg| &cfg.registry),
let (network, system_rpc_tx, tx_handler_controller, network_starter, sync_service) =
sc_service::build_network(sc_service::BuildNetworkParams {
config: &config,
client: client.clone(),
transaction_pool: transaction_pool.clone(),
spawn_handle: task_manager.spawn_handle(),
block_announce_validator_builder: None,
warp_sync_params: None,
net_config,
block_relay: None,
metrics,
if config.offchain_worker.enabled {
task_manager.spawn_handle().spawn(
"offchain-workers-runner",
"offchain-work",
sc_offchain::OffchainWorkers::new(sc_offchain::OffchainWorkerOptions {
runtime_api_provider: client.clone(),
keystore: Some(keystore_container.keystore()),
offchain_db: backend.offchain_storage(),
transaction_pool: Some(OffchainTransactionPoolFactory::new(
transaction_pool.clone(),
)),
network_provider: Arc::new(network.clone()),
is_validator: config.role.is_authority(),
enable_http_requests: true,
custom_extensions: move |_| vec![],
.run(client.clone(), task_manager.spawn_handle())
.boxed(),
let prometheus_registry = config.prometheus_registry().cloned();
let overrides = Arc::new(StorageOverrideHandler::new(client.clone()));
let fee_history_limit = rpc_config.fee_history_limit;
let mut command_sink = None;
let mut dev_rpc_data = None;
let collator = config.role.is_authority();
if collator {
let mut env = sc_basic_authorship::ProposerFactory::with_proof_recording(
task_manager.spawn_handle(),
prometheus_registry.as_ref(),
telemetry.as_ref().map(|x| x.handle()),
env.set_soft_deadline(SOFT_DEADLINE_PERCENT);
let commands_stream: Box<dyn Stream<Item = EngineCommand<H256>> + Send + Sync + Unpin> =
match sealing {
moonbeam_cli_opt::Sealing::Instant => {
Box::new(
// This bit cribbed from the implementation of instant seal.
transaction_pool
.pool()
.validated_pool()
.import_notification_stream()
.map(|_| EngineCommand::SealNewBlock {
create_empty: false,
finalize: false,
parent_hash: None,
sender: None,
}),
moonbeam_cli_opt::Sealing::Manual => {
let (sink, stream) = futures::channel::mpsc::channel(1000);
// Keep a reference to the other end of the channel. It goes to the RPC.
command_sink = Some(sink);
Box::new(stream)
moonbeam_cli_opt::Sealing::Interval(millis) => Box::new(StreamExt::map(
Timer::interval(Duration::from_millis(millis)),
|_| EngineCommand::SealNewBlock {
create_empty: true,
let select_chain = maybe_select_chain.expect(
"`new_lazy_loading_partial` builds a `LongestChainRule` when building dev service.\
We specified the dev service when calling `new_partial`.\
Therefore, a `LongestChainRule` is present. qed.",
let client_set_aside_for_cidp = client.clone();
// Create channels for mocked XCM messages.
let (downward_xcm_sender, downward_xcm_receiver) = flume::bounded::<Vec<u8>>(100);
let (hrmp_xcm_sender, hrmp_xcm_receiver) = flume::bounded::<(ParaId, Vec<u8>)>(100);
let additional_relay_offset = Arc::new(std::sync::atomic::AtomicU32::new(0));
dev_rpc_data = Some((
downward_xcm_sender,
hrmp_xcm_sender,
additional_relay_offset,
let client_clone = client.clone();
let keystore_clone = keystore_container.keystore().clone();
let maybe_provide_vrf_digest =
move |nimbus_id: NimbusId, parent: Hash| -> Option<sp_runtime::generic::DigestItem> {
moonbeam_vrf::vrf_pre_digest::<Block, LazyLoadingClient<RuntimeApi>>(
&client_clone,
&keystore_clone,
nimbus_id,
parent,
let parachain_id = helpers::get_parachain_id(backend.rpc_client.clone())
.unwrap_or_else(|| panic!("Could not get parachain identifier for lazy loading mode."));
task_manager.spawn_essential_handle().spawn_blocking(
"authorship_task",
Some("block-authoring"),
run_manual_seal(ManualSealParams {
env,
pool: transaction_pool.clone(),
commands_stream,
select_chain,
consensus_data_provider: Some(Box::new(NimbusManualSealConsensusDataProvider {
keystore: keystore_container.keystore(),
additional_digests_provider: maybe_provide_vrf_digest,
_phantom: Default::default(),
})),
create_inherent_data_providers: move |block: H256, ()| {
let maybe_current_para_block = client_set_aside_for_cidp.number(block);
let maybe_current_para_head = client_set_aside_for_cidp.expect_header(block);
let downward_xcm_receiver = downward_xcm_receiver.clone();
let hrmp_xcm_receiver = hrmp_xcm_receiver.clone();
let client_for_cidp = client_set_aside_for_cidp.clone();
async move {
let current_para_block = maybe_current_para_block?
.ok_or(sp_blockchain::Error::UnknownBlock(block.to_string()))?;
let current_para_block_head = Some(polkadot_primitives::HeadData(
maybe_current_para_head?.encode(),
let mut additional_key_values = vec![
moonbeam_core_primitives::well_known_relay_keys::TIMESTAMP_NOW
.to_vec(),
sp_timestamp::Timestamp::current().encode(),
relay_chain::well_known_keys::ACTIVE_CONFIG.to_vec(),
AbridgedHostConfiguration {
max_code_size: 3_145_728,
max_head_data_size: 20_480,
max_upward_queue_count: 174_762,
max_upward_queue_size: 1_048_576,
max_upward_message_size: 65_531,
max_upward_message_num_per_candidate: 16,
hrmp_max_message_num_per_candidate: 10,
validation_upgrade_cooldown: 14_400,
validation_upgrade_delay: 600,
async_backing_params: AsyncBackingParams {
max_candidate_depth: 3,
allowed_ancestry_len: 2,
.encode(),
// Override current slot number
relay_chain::well_known_keys::CURRENT_SLOT.to_vec(),
Slot::from(u64::from(current_para_block)).encode(),
];
// If there is a pending upgrade, lets mimic a GoAhead
// signal from the relay
let storage_key = [
twox_128(b"ParachainSystem"),
twox_128(b"PendingValidationCode"),
]
.concat();
let has_pending_upgrade = client_for_cidp
.storage(block, &StorageKey(storage_key))
.map_or(false, |ok| ok.map_or(false, |some| !some.0.is_empty()));
if has_pending_upgrade {
additional_key_values.push((
relay_chain::well_known_keys::upgrade_go_ahead_signal(ParaId::new(
parachain_id,
Some(UpgradeGoAhead::GoAhead).encode(),
let mocked_parachain = MockValidationDataInherentDataProvider {
current_para_block,
para_id: ParaId::new(parachain_id),
current_para_block_head,
relay_offset: 1000,
relay_blocks_per_para_block: 2,
// TODO: Recheck
para_blocks_per_relay_epoch: 10,
relay_randomness_config: (),
xcm_config: MockXcmConfig::new(
&*client_for_cidp,
block,
Default::default(),
raw_downward_messages: downward_xcm_receiver.drain().collect(),
raw_horizontal_messages: hrmp_xcm_receiver.drain().collect(),
additional_key_values: Some(additional_key_values),
let randomness = session_keys_primitives::InherentDataProvider;
Ok((time, mocked_parachain, randomness))
// Sinks for pubsub notifications.
// Everytime a new subscription is created, a new mpsc channel is added to the sink pool.
// The MappingSyncWorker sends through the channel on block import and the subscription emits a
// notification to the subscriber on receiving a message through this channel.
// This way we avoid race conditions when using native substrate block import notification
// stream.
let pubsub_notification_sinks: fc_mapping_sync::EthereumBlockNotificationSinks<
fc_mapping_sync::EthereumBlockNotification<Block>,
> = Default::default();
let pubsub_notification_sinks = Arc::new(pubsub_notification_sinks);
rpc::spawn_essential_tasks(
rpc::SpawnTasksParams {
task_manager: &task_manager,
substrate_backend: backend.clone(),
frontier_backend: frontier_backend.clone(),
filter_pool: filter_pool.clone(),
overrides: overrides.clone(),
fee_history_limit,
fee_history_cache: fee_history_cache.clone(),
sync_service.clone(),
pubsub_notification_sinks.clone(),
let ethapi_cmd = rpc_config.ethapi.clone();
let tracing_requesters =
if ethapi_cmd.contains(&EthApiCmd::Debug) || ethapi_cmd.contains(&EthApiCmd::Trace) {
rpc::tracing::spawn_tracing_tasks(
prometheus_registry.clone(),
rpc::tracing::RpcRequesters {
debug: None,
trace: None,
let block_data_cache = Arc::new(fc_rpc::EthBlockDataCacheTask::new(
overrides.clone(),
rpc_config.eth_log_block_cache,
rpc_config.eth_statuses_cache,
prometheus_registry,
let rpc_builder = {
let client = client.clone();
let pool = transaction_pool.clone();
let backend = backend.clone();
let network = network.clone();
let sync = sync_service.clone();
let ethapi_cmd = ethapi_cmd.clone();
let max_past_logs = rpc_config.max_past_logs;
let overrides = overrides.clone();
let fee_history_cache = fee_history_cache.clone();
let block_data_cache = block_data_cache.clone();
let pubsub_notification_sinks = pubsub_notification_sinks.clone();
let keystore = keystore_container.keystore();
let command_sink_for_task = command_sink.clone();
move |deny_unsafe, subscription_task_executor| {
let deps = rpc::FullDeps {
backend: backend.clone(),
command_sink: command_sink_for_task.clone(),
deny_unsafe,
ethapi_cmd: ethapi_cmd.clone(),
frontier_backend: match *frontier_backend {
fc_db::Backend::KeyValue(ref b) => b.clone(),
fc_db::Backend::Sql(ref b) => b.clone(),
graph: pool.pool().clone(),
pool: pool.clone(),
is_authority: collator,
max_past_logs,
network: network.clone(),
sync: sync.clone(),
dev_rpc_data: dev_rpc_data.clone(),
block_data_cache: block_data_cache.clone(),
forced_parent_hashes: None,
let pending_consensus_data_provider = Box::new(PendingConsensusDataProvider::new(
keystore.clone(),
rpc::create_full(
deps,
subscription_task_executor,
Some(crate::rpc::TracingConfig {
tracing_requesters: tracing_requesters.clone(),
trace_filter_max_count: rpc_config.ethapi_trace_max_count,
pending_consensus_data_provider,
.map_err(Into::into)
let _rpc_handlers = sc_service::spawn_tasks(sc_service::SpawnTasksParams {
network,
task_manager: &mut task_manager,
rpc_builder: Box::new(rpc_builder),
system_rpc_tx,
sync_service: sync_service.clone(),
tx_handler_controller,
telemetry: None,
if let Some(hwbench) = hwbench {
sc_sysinfo::print_hwbench(&hwbench);
if let Some(ref mut telemetry) = telemetry {
let telemetry_handle = telemetry.handle();
"telemetry_hwbench",
sc_sysinfo::initialize_hwbench_telemetry(telemetry_handle, hwbench),
network_starter.start_network();
log::info!("Service Ready");
Ok(task_manager)