companion for substrate#14423 (#7484)

* companion for substrate#14423

* update lockfile for {"substrate"}

* update lockfile for {"substrate"}

---------

Co-authored-by: parity-processbot <>

polkadot/node/service/src/lib.rs

@@ -126,6 +126,10 @@ pub type FullClient = service::TFullClient<
 	WasmExecutor<(sp_io::SubstrateHostFunctions, frame_benchmarking::benchmarking::HostFunctions)>,
 >;
 
+/// The minimum period of blocks on which justifications will be
+/// imported and generated.
+const GRANDPA_JUSTIFICATION_PERIOD: u32 = 512;
+
 /// Provides the header and block number for a hash.
 ///
 /// Decouples `sc_client_api::Backend` and `sp_blockchain::HeaderBackend`.
@@ -494,6 +498,7 @@ where
 
 	let (grandpa_block_import, grandpa_link) = grandpa::block_import_with_authority_set_hard_forks(
 		client.clone(),
+		GRANDPA_JUSTIFICATION_PERIOD,
 		&(client.clone() as Arc<_>),
 		select_chain.clone(),
 		grandpa_hard_forks,
@@ -1140,7 +1145,7 @@ where
 		// Grandpa performance can be improved a bit by tuning this parameter, see:
 		// https://github.com/paritytech/polkadot/issues/5464
 		gossip_duration: Duration::from_millis(1000),
-		justification_period: 512,
+		justification_generation_period: GRANDPA_JUSTIFICATION_PERIOD,
 		name: Some(name),
 		observer_enabled: false,
 		keystore: keystore_opt,