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Merged
cicr99 merged 2 commits into from
Feb 6, 2026
Merged

XDC - Add custom state sync allocation strategy #10399

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cc9a4ea
add custom state sync allocation strategy for xdc
cicr99 Feb 4, 2026
5009b6b
Merge branch 'master' into feature/xdc-get-node-data-filter
cicr99 Feb 6, 2026
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5 changes: 5 additions & 0 deletions src/Nethermind/Nethermind.Xdc/XdcModule.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -26,6 +26,8 @@
using Nethermind.Evm.TransactionProcessing;
using Nethermind.Xdc.TxPool;
using Nethermind.Api.Steps;
using Nethermind.Synchronization.FastSync;
using Nethermind.Synchronization.ParallelSync;

namespace Nethermind.Xdc;

Expand Down Expand Up @@ -93,6 +95,9 @@ protected override void Load(ContainerBuilder builder)

// block processing
.AddScoped<ITransactionProcessor, XdcTransactionProcessor>()

// state sync allocation strategy - override default to use protocol version 100 check
.AddSingleton<IPeerAllocationStrategyFactory<StateSyncBatch>, XdcStateSyncAllocationStrategyFactory>()
;
}

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34 changes: 34 additions & 0 deletions src/Nethermind/Nethermind.Xdc/XdcStateSyncAllocationStrategyFactory.cs
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@@ -0,0 +1,34 @@
// SPDX-FileCopyrightText: 2025 Demerzel Solutions Limited
// SPDX-License-Identifier: LGPL-3.0-only

using Nethermind.Stats;
using Nethermind.Synchronization.FastSync;
using Nethermind.Synchronization.ParallelSync;
using Nethermind.Synchronization.Peers;
using Nethermind.Synchronization.Peers.AllocationStrategies;
using Nethermind.Synchronization.StateSync;

namespace Nethermind.Xdc;

public class XdcStateSyncAllocationStrategyFactory : StaticPeerAllocationStrategyFactory<StateSyncBatch>
{
private static readonly IPeerAllocationStrategy DefaultStrategy =
new AllocationStrategy(new BySpeedStrategy(TransferSpeedType.NodeData, true));

public XdcStateSyncAllocationStrategyFactory() : base(DefaultStrategy)
{
}

internal class AllocationStrategy : FilterPeerAllocationStrategy
{
public AllocationStrategy(IPeerAllocationStrategy strategy) : base(strategy)
{
}

protected override bool Filter(PeerInfo peerInfo)
{
return peerInfo.CanGetSnapData() || peerInfo.SyncPeer.ProtocolVersion == 100;
}
}
}