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feat(lmxproxy): active health probing + address-based subscription cleanup (gap 1 & 2)

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Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
This commit is contained in:
Joseph Doherty
2026-03-22 06:44:21 -04:00
parent 86a15c0a65
commit a6c01d73e2
12 changed files with 301 additions and 43 deletions
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20
lmxproxy/src/ZB.MOM.WW.LmxProxy.Host/MxAccess/MxAccessClient.cs
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@@ -41,6 +41,16 @@ namespace ZB.MOM.WW.LmxProxy.Host.MxAccess
// Reconnect
private CancellationTokenSource? _reconnectCts;
// Probe configuration
private readonly string? _probeTestTagAddress;
private readonly int _probeTimeoutMs;
private readonly int _maxConsecutiveTransportFailures;
private readonly int _degradedProbeIntervalMs;
// Probe state
private int _consecutiveTransportFailures;
private bool _isDegraded;
// Stored subscriptions for reconnect replay
private readonly Dictionary<string, Action<string, Vtq>> _storedSubscriptions
= new Dictionary<string, Action<string, Vtq>>(StringComparer.OrdinalIgnoreCase);
@@ -63,7 +73,11 @@ namespace ZB.MOM.WW.LmxProxy.Host.MxAccess
int monitorIntervalSeconds = 5,
bool autoReconnect = true,
string? nodeName = null,
string? galaxyName = null)
string? galaxyName = null,
string? probeTestTagAddress = null,
int probeTimeoutMs = 5000,
int maxConsecutiveTransportFailures = 3,
int degradedProbeIntervalMs = 30000)
{
_maxConcurrentOperations = maxConcurrentOperations;
_readTimeoutMs = readTimeoutSeconds * 1000;
@@ -72,6 +86,10 @@ namespace ZB.MOM.WW.LmxProxy.Host.MxAccess
_autoReconnect = autoReconnect;
_nodeName = nodeName;
_galaxyName = galaxyName;
_probeTestTagAddress = probeTestTagAddress;
_probeTimeoutMs = probeTimeoutMs;
_maxConsecutiveTransportFailures = maxConsecutiveTransportFailures;
_degradedProbeIntervalMs = degradedProbeIntervalMs;
_readSemaphore = new SemaphoreSlim(maxConcurrentOperations, maxConcurrentOperations);
_writeSemaphore = new SemaphoreSlim(maxConcurrentOperations, maxConcurrentOperations);