Merge pull request #480 from opentensor/enable-exponential-backoff

Enable exponential backoff for AuRa

Cargo.toml

@@ -65,6 +65,7 @@ sc-consensus = { git = "https://github.com/paritytech/polkadot-sdk.git", tag = "
 sc-consensus-aura = { git = "https://github.com/paritytech/polkadot-sdk.git", tag = "polkadot-v1.10.0" }
 sc-consensus-grandpa = { git = "https://github.com/paritytech/polkadot-sdk.git", tag = "polkadot-v1.10.0" }
 sc-consensus-grandpa-rpc = { git = "https://github.com/paritytech/polkadot-sdk.git", tag = "polkadot-v1.10.0" }
+sc-consensus-slots = { git = "https://github.com/paritytech/polkadot-sdk.git", tag = "polkadot-v1.10.0" }
 sc-executor = { git = "https://github.com/paritytech/polkadot-sdk.git", tag = "polkadot-v1.10.0" }
 sc-keystore = { git = "https://github.com/paritytech/polkadot-sdk.git", tag = "polkadot-v1.10.0" }
 sc-network = { git = "https://github.com/paritytech/polkadot-sdk.git", tag = "polkadot-v1.10.0" }

node/Cargo.toml

@@ -45,6 +45,7 @@ sc-consensus = { workspace = true }
 sc-consensus-grandpa = { workspace = true }
 sc-consensus-grandpa-rpc = { workspace = true }
 sp-consensus-grandpa = { workspace = true }
+sc-consensus-slots = { workspace = true }
 sc-client-api = { workspace = true }
 sp-runtime = { workspace = true }
 sp-io = { workspace = true }

node/src/service.rs

@@ -5,6 +5,7 @@ use node_subtensor_runtime::{opaque::Block, RuntimeApi};
 use sc_client_api::{Backend, BlockBackend};
 use sc_consensus_aura::{ImportQueueParams, SlotProportion, StartAuraParams};
 use sc_consensus_grandpa::SharedVoterState;
+use sc_consensus_slots::BackoffAuthoringOnFinalizedHeadLagging;
 use sc_executor::sp_wasm_interface::{Function, HostFunctionRegistry, HostFunctions};
 pub use sc_executor::NativeElseWasmExecutor;
 use sc_service::{error::Error as ServiceError, Configuration, TaskManager, WarpSyncParams};
@@ -240,7 +241,10 @@ pub fn new_full(config: Configuration) -> Result<TaskManager, ServiceError> {
 
     let role = config.role.clone();
     let force_authoring = config.force_authoring;
-    let backoff_authoring_blocks: Option<()> = None;
+    let backoff_authoring_blocks = Some(BackoffAuthoringOnFinalizedHeadLagging {
+        unfinalized_slack: 6,
+        ..Default::default()
+    });
     let name = config.network.node_name.clone();
     let enable_grandpa = !config.disable_grandpa;
     let prometheus_registry = config.prometheus_registry().cloned();