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fix(opcuaclient): #670 live-gate follow-ups — historize the outage Bad, drop late replays

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F1: the driver's outage BadNoCommunication carried the last Good sample's
source timestamp. The recorder historizes SourceTimestampUtc ??
ServerTimestampUtc, so the Bad landed on the Good row's (TagId,
SourceTimeUtc) key and the insert-if-absent historian dropped it - no
outage marker until the host's watchdog marker ~95 s in, none at all for
a short blip. Now stamped with the detection time (source + server), as
the host's comms-loss fan does.

F2: after a same-session recovery the SDK delivered a missed notification
seconds late with an older source time and the node regressed. A
notification older than the newest Good upstream source time for its ref
(notification or recovery read) is dropped and counted
(stale_notification_dropped); equal timestamps pass; the outage Bad never
moves the comparison; a re-initialise resets it.
This commit is contained in:
Joseph Doherty
2026-10-11 09:11:34 -04:00
parent db6446ce73
commit 99c13e4459
5 changed files with 147 additions and 5 deletions
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src/Core/ZB.MOM.WW.OtOpcUa.Commons/Observability/OtOpcUaTelemetry.cs
+2 -2
View File
@@ -80,11 +80,11 @@ public static class OtOpcUaTelemetry
/// Session/publish-level events of an OPC UA Client driver instance (#276): the operator's view of a
/// flapping upstream. Tagged <see cref="PollOverrunDriverInstanceTag"/> (<c>driver_instance</c>) +
/// <c>event</c> = <c>publish_response|notification|data_change|bad_status_value|publish_error|
/// keepalive_miss|keepalive_recovered</c>.
/// keepalive_miss|keepalive_recovered|stale_notification_dropped</c>.
/// </summary>
public static readonly Counter<long> OpcUaClientEvents =
Meter.CreateCounter<long>("otopcua.driver.opcuaclient.events", unit: "{event}",
description: "OPC UA Client driver session/publish events (event=publish_response|notification|data_change|bad_status_value|publish_error|keepalive_miss|keepalive_recovered).");
description: "OPC UA Client driver session/publish events (event=publish_response|notification|data_change|bad_status_value|publish_error|keepalive_miss|keepalive_recovered|stale_notification_dropped).");
// ---------------- VirtualTag / ScriptedAlarm engines ----------------