feat: implement raft snapshot catchup

2026-02-23 06:13:08 -05:00
parent ecc4752c07
commit 005600b9b8
6 changed files with 93 additions and 1 deletions
--- a/tests/NATS.Server.Tests/RaftSnapshotCatchupTests.cs
+++ b/tests/NATS.Server.Tests/RaftSnapshotCatchupTests.cs
@@ -0,0 +1,16 @@
+namespace NATS.Server.Tests;
+
+public class RaftSnapshotCatchupTests
+{
+    [Fact]
+    public async Task Lagging_follower_catches_up_via_snapshot()
+    {
+        var cluster = RaftTestCluster.Create(3);
+        await cluster.GenerateCommittedEntriesAsync(500);
+
+        await cluster.RestartLaggingFollowerAsync();
+        await cluster.WaitForFollowerCatchupAsync();
+
+        cluster.LaggingFollower.AppliedIndex.ShouldBe(cluster.Leader.AppliedIndex);
+    }
+}