Companion PR for Substrate #7186

node/service/Cargo.toml

@@ -14,6 +14,7 @@ sc-chain-spec = { git = "https://github.com/paritytech/substrate", branch = "mas
 sc-client-api = { git = "https://github.com/paritytech/substrate", branch = "master" }
 sc-client-db = { git = "https://github.com/paritytech/substrate", branch = "master" }
 sc-consensus = { git = "https://github.com/paritytech/substrate", branch = "master" }
+sc-consensus-slots = { git = "https://github.com/paritytech/substrate", branch = "master" }
 sc-executor = { git = "https://github.com/paritytech/substrate", branch = "master" }
 sc-keystore = { git = "https://github.com/paritytech/substrate", branch = "master" }
 sc-network = { git = "https://github.com/paritytech/substrate", branch = "master" }

node/service/src/lib.rs

@@ -443,6 +443,13 @@ pub fn new_full<RuntimeApi, Executor>(
 		let can_author_with =
 			consensus_common::CanAuthorWithNativeVersion::new(client.executor().clone());
 
+		// JON: where can we keep these constants?
+		let backoff_authoring_blocks = Some(sc_consensus_slots::SimpleBackoffAuthoringBlocksStrategy {
+			max_interval: 100,
+			unfinalized_slack: 5,
+			authoring_bias: 2,
+		});
+
 		let proposer = ProposerFactory::new(
 			client.clone(),
 			transaction_pool,
@@ -458,6 +465,7 @@ pub fn new_full<RuntimeApi, Executor>(
 			sync_oracle: network.clone(),
 			inherent_data_providers: inherent_data_providers.clone(),
 			force_authoring,
+			backoff_authoring_blocks,
 			babe_link,
 			can_author_with,
 		};