Account for fast sync lag

NethermindEth · Nov 25, 2024 · 135022d · 135022d
1 parent 5544e4a
commit 135022d
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Showing 2 changed files with 5 additions and 4 deletions.
diff --git a/src/Nethermind/Nethermind.Blockchain/Synchronization/SyncConfig.cs b/src/Nethermind/Nethermind.Blockchain/Synchronization/SyncConfig.cs
@@ -70,8 +70,8 @@ public string? PivotHash
         public bool NeedToWaitForHeader { get; set; }
         public bool VerifyTrieOnStateSyncFinished { get; set; }
         public bool TrieHealing { get; set; } = true;
-        public int StateMaxDistanceFromHead { get; set; } = 96;
-        public int StateMinDistanceFromHead { get; set; } = 0; // TODO: Don't forget tto acccount for fastsynclag
+        public int StateMaxDistanceFromHead { get; set; } = 128;
+        public int StateMinDistanceFromHead { get; set; } = 32;
 
         public override string ToString()
         {

diff --git a/src/Nethermind/Nethermind.Synchronization/FastSync/StateSyncPivot.cs b/src/Nethermind/Nethermind.Synchronization/FastSync/StateSyncPivot.cs
@@ -9,6 +9,7 @@
 using Nethermind.Core;
 using Nethermind.Core.Crypto;
 using Nethermind.Logging;
+using Nethermind.Synchronization.ParallelSync;
 
 namespace Nethermind.Synchronization.FastSync
 {
@@ -36,7 +37,7 @@ public StateSyncPivot(IBlockTree blockTree, ISyncConfig syncConfig, ILogManager
 
         public BlockHeader GetPivotHeader()
         {
-            if (_bestHeader is null || _blockTree.BestSuggestedHeader?.Number - _bestHeader.Number >= _syncConfig.StateMaxDistanceFromHead)
+            if (_bestHeader is null || _blockTree.BestSuggestedHeader?.Number - _bestHeader.Number >= _syncConfig.StateMaxDistanceFromHead - MultiSyncModeSelector.FastSyncLag)
             {
                 TrySetNewBestHeader($"distance from HEAD:{Diff}");
             }
@@ -67,7 +68,7 @@ public void UpdateHeaderForcefully()
         private void TrySetNewBestHeader(string msg)
         {
             BlockHeader bestSuggestedHeader = _blockTree.BestSuggestedHeader;
-            long targetBlockNumber = Math.Max(bestSuggestedHeader.Number - _syncConfig.StateMinDistanceFromHead, 0);
+            long targetBlockNumber = Math.Max(bestSuggestedHeader.Number - (_syncConfig.StateMinDistanceFromHead - MultiSyncModeSelector.FastSyncLag), 0);
             BlockHeader bestHeader = _blockTree.FindHeader(targetBlockNumber);
             if (bestHeader is not null)
             {