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128 changes: 128 additions & 0 deletions
128
src/Nethermind/Nethermind.Merge.Plugin/Synchronization/UnsafePivotUpdator.cs
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,128 @@ | ||
| // SPDX-FileCopyrightText: 2024 Demerzel Solutions Limited | ||
| // SPDX-License-Identifier: LGPL-3.0-only | ||
|
|
||
| using System; | ||
| using System.Threading; | ||
| using System.Threading.Tasks; | ||
| using Nethermind.Blockchain; | ||
| using Nethermind.Blockchain.Synchronization; | ||
| using Nethermind.Consensus.Validators; | ||
| using Nethermind.Core; | ||
| using Nethermind.Core.Crypto; | ||
| using Nethermind.Db; | ||
| using Nethermind.Logging; | ||
| using Nethermind.Merge.Plugin.Handlers; | ||
| using Nethermind.Synchronization; | ||
| using Nethermind.Synchronization.ParallelSync; | ||
| using Nethermind.Synchronization.Peers; | ||
|
|
||
| namespace Nethermind.Merge.Plugin.Synchronization; | ||
|
|
||
| public class UnsafePivotUpdator( | ||
| IBlockTree blockTree, | ||
| ISyncModeSelector syncModeSelector, | ||
| ISyncPeerPool syncPeerPool, | ||
| ISyncConfig syncConfig, | ||
| IBlockCacheService blockCacheService, | ||
| IBeaconSyncStrategy beaconSyncStrategy, | ||
| IDb metadataDb, | ||
| ILogManager logManager) | ||
| : PivotUpdator(blockTree, syncModeSelector, syncPeerPool, syncConfig, | ||
| blockCacheService, beaconSyncStrategy, metadataDb, logManager) | ||
| { | ||
|
|
||
| private const int NumberOfBlocksBehindHeadForSettingPivot = 64; | ||
|
|
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| protected override async Task<Hash256?> TryGetPotentialPivotBlockHash(CancellationToken cancellationToken) | ||
| { | ||
| // getting potentially unsafe head block hash, because some chains (e.g. optimism) aren't providing finalized block hash until fully synced | ||
| Hash256? headBlockHash = _beaconSyncStrategy.GetHeadBlockHash(); | ||
|
|
||
| if (headBlockHash is not null | ||
| && headBlockHash != Keccak.Zero) | ||
| { | ||
| long headBlockNumber = await TryGetHeadBlockNumberFromPeers(headBlockHash, cancellationToken); | ||
| if (headBlockNumber > NumberOfBlocksBehindHeadForSettingPivot) | ||
| { | ||
| long potentialPivotBlockNumber = headBlockNumber - NumberOfBlocksBehindHeadForSettingPivot; | ||
|
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| Hash256? potentialPivotBlockHash = await TryGetPotentialPivotBlockHashFromPeers(potentialPivotBlockNumber, cancellationToken); | ||
|
|
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| if (potentialPivotBlockHash is not null | ||
| && potentialPivotBlockHash != Keccak.Zero) | ||
| { | ||
| UpdateAndPrintPotentialNewPivot(potentialPivotBlockHash); | ||
| return potentialPivotBlockHash; | ||
| } | ||
| } | ||
| } | ||
|
|
||
| PrintWaitingForMessageFromCl(); | ||
| return null; | ||
| } | ||
|
|
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| private async Task<long> TryGetHeadBlockNumberFromPeers(Hash256 headBlockHash, CancellationToken cancellationToken) | ||
| { | ||
| foreach (PeerInfo peer in _syncPeerPool.InitializedPeers) | ||
| { | ||
| if (cancellationToken.IsCancellationRequested) | ||
| { | ||
| return 0; | ||
| } | ||
| try | ||
| { | ||
| if (_logger.IsInfo) _logger.Info($"Asking peer {peer.SyncPeer.Node.ClientId} for header of head block {headBlockHash}"); | ||
| BlockHeader? headBlockHeader = await peer.SyncPeer.GetHeadBlockHeader(headBlockHash, cancellationToken); | ||
| if (headBlockHeader is not null) | ||
| { | ||
| if (HeaderValidator.ValidateHash(headBlockHeader)) | ||
| { | ||
| if (_logger.IsInfo) _logger.Info($"Received header of head block from peer {peer.SyncPeer.Node.ClientId}"); | ||
| return headBlockHeader.Number; | ||
| } | ||
| if (_logger.IsInfo) _logger.Info($"Hash of header received from peer {peer.SyncPeer.Node.ClientId} is {headBlockHeader.Hash} when expecting {headBlockHash}"); | ||
| } | ||
| } | ||
| catch (Exception exception) when (exception is TimeoutException or OperationCanceledException) | ||
| { | ||
| if (_logger.IsInfo) _logger.Info($"Peer {peer.SyncPeer.Node.ClientId} didn't respond to request for header of head block {headBlockHash}"); | ||
| if (_logger.IsDebug) _logger.Debug($"Exception in GetHeadBlockHeader request to peer {peer.SyncPeer.Node.ClientId}. {exception}"); | ||
| } | ||
| } | ||
|
|
||
| return 0; | ||
| } | ||
|
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| private async Task<Hash256?> TryGetPotentialPivotBlockHashFromPeers(long potentialPivotBlockNumber, CancellationToken cancellationToken) | ||
| { | ||
| foreach (PeerInfo peer in _syncPeerPool.InitializedPeers) | ||
| { | ||
| if (cancellationToken.IsCancellationRequested) | ||
| { | ||
| return null; | ||
| } | ||
| try | ||
| { | ||
| if (_logger.IsInfo) _logger.Info($"Asking peer {peer.SyncPeer.Node.ClientId} for header of pivot block {potentialPivotBlockNumber}"); | ||
| BlockHeader? potentialPivotBlockHeader = (await peer.SyncPeer.GetBlockHeaders(potentialPivotBlockNumber, 1, 0, cancellationToken))?[0]; | ||
| if (potentialPivotBlockHeader is not null) | ||
| { | ||
| if (HeaderValidator.ValidateHash(potentialPivotBlockHeader)) | ||
| { | ||
| if (_logger.IsInfo) _logger.Info($"Received header of pivot block from peer {peer.SyncPeer.Node.ClientId}"); | ||
| return potentialPivotBlockHeader.Hash; | ||
| } | ||
| if (_logger.IsInfo) _logger.Info($"Header received from peer {peer.SyncPeer.Node.ClientId} wasn't valid"); | ||
| } | ||
| } | ||
| catch (Exception exception) when (exception is TimeoutException or OperationCanceledException) | ||
| { | ||
| if (_logger.IsInfo) _logger.Info($"Peer {peer.SyncPeer.Node.ClientId} didn't respond to request for header of pivot block {potentialPivotBlockNumber}"); | ||
| if (_logger.IsDebug) _logger.Debug($"Exception in GetHeadBlockHeader request to peer {peer.SyncPeer.Node.ClientId}. {exception}"); | ||
| } | ||
| } | ||
|
|
||
| PrintPotentialNewPivotAndWaiting(potentialPivotBlockNumber.ToString()); | ||
| return null; | ||
| } | ||
| } |
34 changes: 0 additions & 34 deletions
34
src/Nethermind/Nethermind.Optimism/OptimismPivotUpdator.cs
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