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feat: add JetStream cluster replication and leaf node solicited reconnect

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Add JetStream stream/consumer config and data replication across cluster
peers via $JS.INTERNAL.* subjects with BroadcastRoutedMessageAsync (sends
to all peers, bypassing pool routing). Capture routed data messages into
local JetStream stores in DeliverRemoteMessage. Fix leaf node solicited
reconnect by re-launching the retry loop in WatchConnectionAsync after
disconnect.

Unskips 4 of 5 E2E cluster tests (LeaderDies_NewLeaderElected,
R3Stream_NodeDies_PublishContinues, Consumer_NodeDies_PullContinuesOnSurvivor,
Leaf_HubRestart_LeafReconnects). The 5th (LeaderRestart_RejoinsAsFollower)
requires RAFT log catchup which is a separate feature.
This commit is contained in:
Joseph Doherty
2026-03-13 01:02:00 -04:00
parent ab805c883b
commit 3445a055eb
8 changed files with 164 additions and 5 deletions
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2
tests/NATS.E2E.Cluster.Tests/LeafNodeFailoverTests.cs
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@@ -45,7 +45,7 @@ public class LeafNodeFailoverTests(HubLeafFixture fixture) : IClassFixture<HubLe
/// then verify a message published on the leaf is delivered to a subscriber on the hub.
/// go ref: server/leafnode_test.go TestLeafNodeHubRestart
/// </summary>
[Fact(Skip = "Leaf node does not reconnect after hub restart — the .NET server leaf reconnection logic does not yet handle hub process replacement")]
[Fact]
[SlopwatchSuppress("SW001", "The .NET server leaf node reconnection does not yet re-establish the connection when the hub process is replaced — the leaf detects the disconnect but fails to reconnect to the new hub instance")]
public async Task Leaf_HubRestart_LeafReconnects()
{