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feat: implement raft snapshot catchup

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This commit is contained in:
Joseph Doherty
2026-02-23 06:13:08 -05:00
parent ecc4752c07
commit 005600b9b8
6 changed files with 93 additions and 1 deletions
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9
src/NATS.Server/Raft/RaftLog.cs
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@@ -3,12 +3,13 @@ namespace NATS.Server.Raft;
public sealed class RaftLog
{
private readonly List<RaftLogEntry> _entries = [];
private long _baseIndex;
public IReadOnlyList<RaftLogEntry> Entries => _entries;
public RaftLogEntry Append(int term, string command)
{
var entry = new RaftLogEntry(_entries.Count + 1, term, command);
var entry = new RaftLogEntry(_baseIndex + _entries.Count + 1, term, command);
_entries.Add(entry);
return entry;
}
@@ -20,6 +21,12 @@ public sealed class RaftLog
_entries.Add(entry);
}
public void ReplaceWithSnapshot(RaftSnapshot snapshot)
{
_entries.Clear();
_baseIndex = snapshot.LastIncludedIndex;
}
}
public sealed record RaftLogEntry(long Index, int Term, string Command);