fix(communication): alarm aggregator reconcile tick does not reopen while a backoff reconnect is pending (double subscribe; surfaced by review 2026-10-21 03/R-2 work)

2026-10-22 06:42:18 -04:00
parent c5add11546
commit f4d328aecc
1 changed files with 3 additions and 1 deletions
@@ -568,7 +568,9 @@ public sealed class SiteAlarmAggregatorActor : ReceiveActor, IWithTimers
        // A down stream is reopened in preference to fanning out: the reopen's connect
        // callback seeds by itself, so doing both would double the work.
        var reopening = false;
-        if (_streamDown && !_openInFlight)
+        // Not while a backoff reconnect is already scheduled: the tick used to open a stream
+        // and the pending ReconnectAlarmStream then opened a second one (a double subscribe).
+        if (_streamDown && !_openInFlight && !Timers.IsTimerActive(ReconnectTimerKey))
        {
            _log.Info("Site-alarm gRPC stream for {0} was down; reopening on reconcile tick", _siteIdentifier);
            if (_retryBudgetExhausted)