feat: state sync

packages/dashmate/templates/platform/drive/tenderdash/config.toml.dot

@@ -97,6 +97,10 @@ transport = "routed"
 #]
 grpc-concurrency = [
   { "check_tx" = {{= it.platform.drive.tenderdash.mempool.maxConcurrentCheckTx }} },
+  { "list_snapshots" = {{= it.platform.drive.tenderdash.mempool.maxConcurrentCheckTx }} },
+  { "load_snapshot_chunk" = {{= it.platform.drive.tenderdash.mempool.maxConcurrentCheckTx }} },
+  { "offer_snapshot" = 1 },
+  { "apply_snapshot_chunk" = 1 },
 ]
 
 
@@ -414,7 +418,7 @@ ttl-num-blocks = {{=it.platform.drive.tenderdash.mempool.ttlNumBlocks}}
 # the network to take and serve state machine snapshots. State sync is not attempted if the node
 # has any local state (LastBlockHeight > 0). The node will have a truncated block history,
 # starting from the height of the snapshot.
-enable = false
+enable = true
 
 # State sync uses light client verification to verify state. This can be done either through the
 # P2P layer or RPC layer. Set this to true to use the P2P layer. If false (default), RPC layer

packages/rs-drive-abci/.env.local

@@ -12,6 +12,12 @@ ABCI_LOG_STDOUT_FORMAT=pretty
 ABCI_LOG_STDOUT_COLOR=true
 
 DB_PATH=/tmp/db
+
+CHECKPOINTS_PATH=${DB_PATH}/checkpoints
+
+# GroveDB database file
+GROVEDB_LATEST_FILE=${DB_PATH}/latest_state
+
 REJECTIONS_PATH=/tmp/rejected
 
 # Cache size for Data Contracts

packages/rs-drive-abci/src/abci/app/consensus.rs

@@ -1,10 +1,14 @@
-use crate::abci::app::{BlockExecutionApplication, PlatformApplication, TransactionalApplication};
+use crate::abci::app::{
+    BlockExecutionApplication, PlatformApplication, SnapshotFetchingApplication,
+    SnapshotManagerApplication, TransactionalApplication,
+};
 use crate::abci::handler;
 use crate::abci::handler::error::error_into_exception;
 use crate::error::execution::ExecutionError;
 use crate::error::Error;
 use crate::execution::types::block_execution_context::BlockExecutionContext;
 use crate::platform_types::platform::Platform;
+use crate::platform_types::snapshot::{SnapshotFetchingSession, SnapshotManager};
 use crate::rpc::core::CoreRPCLike;
 use dpp::version::PlatformVersion;
 use drive::grovedb::Transaction;
@@ -16,46 +20,80 @@ use tenderdash_abci::proto::abci as proto;
 ///
 /// AbciApp implements logic that should be triggered when Tenderdash performs various operations, like
 /// creating new proposal or finalizing new block.
-pub struct ConsensusAbciApplication<'a, C> {
+/// 'p: 'tx, means that Platform must outlive the transaction
+pub struct ConsensusAbciApplication<'p, C> {
     /// Platform
-    platform: &'a Platform<C>,
+    platform: &'p Platform<C>,
     /// The current GroveDb transaction
-    transaction: RwLock<Option<Transaction<'a>>>,
+    transaction: RwLock<Option<Transaction<'p>>>,
     /// The current block execution context
     block_execution_context: RwLock<Option<BlockExecutionContext>>,
+    /// The State sync session
+    snapshot_fetching_session: RwLock<Option<SnapshotFetchingSession<'p>>>,
+    /// The snapshot manager
+    snapshot_manager: SnapshotManager,
 }
 
-impl<'a, C> ConsensusAbciApplication<'a, C> {
+impl<'p, C> ConsensusAbciApplication<'p, C> {
     /// Create new ABCI app
-    pub fn new(platform: &'a Platform<C>) -> Self {
+    pub fn new(platform: &'p Platform<C>) -> Self {
+        let snapshot_manager = SnapshotManager::new(
+            platform
+                .config
+                .state_sync_config
+                .checkpoints_path
+                .to_str()
+                .unwrap()
+                .to_string(),
+            platform.config.state_sync_config.max_num_snapshots,
+            platform.config.state_sync_config.snapshots_frequency,
+        );
         Self {
             platform,
             transaction: Default::default(),
             block_execution_context: Default::default(),
+            snapshot_fetching_session: Default::default(),
+            snapshot_manager,
         }
     }
 }
 
-impl<'a, C> PlatformApplication<C> for ConsensusAbciApplication<'a, C> {
+impl<'p, C> PlatformApplication<C> for ConsensusAbciApplication<'p, C> {
     fn platform(&self) -> &Platform<C> {
         self.platform
     }
 }
 
-impl<'a, C> BlockExecutionApplication for ConsensusAbciApplication<'a, C> {
+impl<'p, C> SnapshotManagerApplication for ConsensusAbciApplication<'p, C> {
+    fn snapshot_manager(&self) -> &SnapshotManager {
+        &self.snapshot_manager
+    }
+}
+
+impl<'p, C> SnapshotFetchingApplication<'p, C> for ConsensusAbciApplication<'p, C> {
+    fn snapshot_fetching_session(&self) -> &RwLock<Option<SnapshotFetchingSession<'p>>> {
+        &self.snapshot_fetching_session
+    }
+
+    fn platform(&self) -> &'p Platform<C> {
+        self.platform
+    }
+}
+
+impl<'p, C> BlockExecutionApplication for ConsensusAbciApplication<'p, C> {
     fn block_execution_context(&self) -> &RwLock<Option<BlockExecutionContext>> {
         &self.block_execution_context
     }
 }
 
-impl<'a, C> TransactionalApplication<'a> for ConsensusAbciApplication<'a, C> {
+impl<'p, C> TransactionalApplication<'p> for ConsensusAbciApplication<'p, C> {
     /// create and store a new transaction
     fn start_transaction(&self) {
         let transaction = self.platform.drive.grove.start_transaction();
         self.transaction.write().unwrap().replace(transaction);
     }
 
-    fn transaction(&self) -> &RwLock<Option<Transaction<'a>>> {
+    fn transaction(&self) -> &RwLock<Option<Transaction<'p>>> {
         &self.transaction
     }
 
@@ -77,13 +115,13 @@ impl<'a, C> TransactionalApplication<'a> for ConsensusAbciApplication<'a, C> {
     }
 }
 
-impl<'a, C> Debug for ConsensusAbciApplication<'a, C> {
+impl<'p, C> Debug for ConsensusAbciApplication<'p, C> {
     fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
         write!(f, "<ConsensusAbciApplication>")
     }
 }
 
-impl<'a, C> tenderdash_abci::Application for ConsensusAbciApplication<'a, C>
+impl<'p, C> tenderdash_abci::Application for ConsensusAbciApplication<'p, C>
 where
     C: CoreRPCLike,
 {
@@ -149,4 +187,18 @@ where
     ) -> Result<proto::ResponseVerifyVoteExtension, proto::ResponseException> {
         handler::verify_vote_extension(self, request).map_err(error_into_exception)
     }
+
+    fn offer_snapshot(
+        &self,
+        request: proto::RequestOfferSnapshot,
+    ) -> Result<proto::ResponseOfferSnapshot, proto::ResponseException> {
+        handler::offer_snapshot(self, request).map_err(error_into_exception)
+    }
+
+    fn apply_snapshot_chunk(
+        &self,
+        request: proto::RequestApplySnapshotChunk,
+    ) -> Result<proto::ResponseApplySnapshotChunk, proto::ResponseException> {
+        handler::apply_snapshot_chunk(self, request).map_err(error_into_exception)
+    }
 }

packages/rs-drive-abci/src/abci/app/full.rs

@@ -1,10 +1,14 @@
-use crate::abci::app::{BlockExecutionApplication, PlatformApplication, TransactionalApplication};
+use crate::abci::app::{
+    BlockExecutionApplication, PlatformApplication, SnapshotFetchingApplication,
+    SnapshotManagerApplication, TransactionalApplication,
+};
 use crate::abci::handler;
 use crate::abci::handler::error::error_into_exception;
 use crate::error::execution::ExecutionError;
 use crate::error::Error;
 use crate::execution::types::block_execution_context::BlockExecutionContext;
 use crate::platform_types::platform::Platform;
+use crate::platform_types::snapshot::{SnapshotFetchingSession, SnapshotManager};
 use crate::rpc::core::CoreRPCLike;
 use dpp::version::PlatformVersion;
 use drive::grovedb::Transaction;
@@ -23,15 +27,32 @@ pub struct FullAbciApplication<'a, C> {
     pub transaction: RwLock<Option<Transaction<'a>>>,
     /// The current block execution context
     pub block_execution_context: RwLock<Option<BlockExecutionContext>>,
+    /// The State sync session
+    pub snapshot_fetching_session: RwLock<Option<SnapshotFetchingSession<'a>>>,
+    /// The snapshot manager
+    pub snapshot_manager: SnapshotManager,
 }
 
 impl<'a, C> FullAbciApplication<'a, C> {
     /// Create new ABCI app
     pub fn new(platform: &'a Platform<C>) -> Self {
+        let snapshot_manager = SnapshotManager::new(
+            platform
+                .config
+                .state_sync_config
+                .checkpoints_path
+                .to_str()
+                .unwrap()
+                .to_string(),
+            platform.config.state_sync_config.max_num_snapshots,
+            platform.config.state_sync_config.snapshots_frequency,
+        );
         Self {
             platform,
             transaction: Default::default(),
             block_execution_context: Default::default(),
+            snapshot_fetching_session: Default::default(),
+            snapshot_manager,
         }
     }
 }
@@ -42,6 +63,22 @@ impl<'a, C> PlatformApplication<C> for FullAbciApplication<'a, C> {
     }
 }
 
+impl<'a, C> SnapshotManagerApplication for FullAbciApplication<'a, C> {
+    fn snapshot_manager(&self) -> &SnapshotManager {
+        &self.snapshot_manager
+    }
+}
+
+impl<'a, C> SnapshotFetchingApplication<'a, C> for FullAbciApplication<'a, C> {
+    fn snapshot_fetching_session(&self) -> &RwLock<Option<SnapshotFetchingSession<'a>>> {
+        &self.snapshot_fetching_session
+    }
+
+    fn platform(&self) -> &'a Platform<C> {
+        self.platform
+    }
+}
+
 impl<'a, C> BlockExecutionApplication for FullAbciApplication<'a, C> {
     fn block_execution_context(&self) -> &RwLock<Option<BlockExecutionContext>> {
         &self.block_execution_context
@@ -150,4 +187,32 @@ where
     ) -> Result<proto::ResponseVerifyVoteExtension, proto::ResponseException> {
         handler::verify_vote_extension(self, request).map_err(error_into_exception)
     }
+
+    fn offer_snapshot(
+        &self,
+        request: proto::RequestOfferSnapshot,
+    ) -> Result<proto::ResponseOfferSnapshot, proto::ResponseException> {
+        handler::offer_snapshot(self, request).map_err(error_into_exception)
+    }
+
+    fn apply_snapshot_chunk(
+        &self,
+        request: proto::RequestApplySnapshotChunk,
+    ) -> Result<proto::ResponseApplySnapshotChunk, proto::ResponseException> {
+        handler::apply_snapshot_chunk(self, request).map_err(error_into_exception)
+    }
+
+    fn list_snapshots(
+        &self,
+        request: proto::RequestListSnapshots,
+    ) -> Result<proto::ResponseListSnapshots, proto::ResponseException> {
+        handler::list_snapshots(self, request).map_err(error_into_exception)
+    }
+
+    fn load_snapshot_chunk(
+        &self,
+        request: proto::RequestLoadSnapshotChunk,
+    ) -> Result<proto::ResponseLoadSnapshotChunk, proto::ResponseException> {
+        handler::load_snapshot_chunk(self, request).map_err(error_into_exception)
+    }
 }

packages/rs-drive-abci/src/abci/app/mod.rs

@@ -8,27 +8,36 @@ mod consensus;
 /// Convert state transition execution result into ABCI response
 pub mod execution_result;
 mod full;
+mod state_source;
 
 use crate::execution::types::block_execution_context::BlockExecutionContext;
+use crate::platform_types::snapshot::{SnapshotFetchingSession, SnapshotManager};
 use crate::rpc::core::DefaultCoreRPC;
 pub use check_tx::CheckTxAbciApplication;
 pub use consensus::ConsensusAbciApplication;
 use dpp::version::PlatformVersion;
 pub use full::FullAbciApplication;
+pub use state_source::StateSourceAbciApplication;
 
 /// Platform-based ABCI application
 pub trait PlatformApplication<C = DefaultCoreRPC> {
     /// Returns Platform
     fn platform(&self) -> &Platform<C>;
 }
 
+/// Platform-based ABCI application
+pub trait SnapshotManagerApplication {
+    /// Returns Platform
+    fn snapshot_manager(&self) -> &SnapshotManager;
+}
+
 /// Transactional ABCI application
-pub trait TransactionalApplication<'a> {
+pub trait TransactionalApplication<'p> {
     /// Creates and keeps a new transaction
     fn start_transaction(&self);
 
     /// Returns the current transaction
-    fn transaction(&self) -> &RwLock<Option<Transaction<'a>>>;
+    fn transaction(&self) -> &RwLock<Option<Transaction<'p>>>;
 
     /// Commits created transaction
     fn commit_transaction(&self, platform_version: &PlatformVersion) -> Result<(), Error>;
@@ -39,3 +48,12 @@ pub trait BlockExecutionApplication {
     /// Returns the current block execution context
     fn block_execution_context(&self) -> &RwLock<Option<BlockExecutionContext>>;
 }
+
+/// Application that can maintain state sync
+pub trait SnapshotFetchingApplication<'p, C> {
+    /// Returns the current snapshot fetching session
+    fn snapshot_fetching_session(&self) -> &RwLock<Option<SnapshotFetchingSession<'p>>>;
+
+    /// Returns platform reference
+    fn platform(&self) -> &'p Platform<C>;
+}