Fixed bug: Grpc.Core.StatusCode.Cancelled was mapped to server's Canceled status.

Author: KirillKurdyukov

src/Ydb.Sdk/src/Ado/Session/PoolingSession.cs

@@ -1,8 +1,3 @@
-// This file contains session pooling algorithms adapted from Npgsql
-// Original source: https://github.com/npgsql/npgsql
-// Copyright (c) 2002-2025, Npgsql
-// Licence https://github.com/npgsql/npgsql?tab=PostgreSQL-1-ov-file
-
 using Microsoft.Extensions.Logging;
 using Ydb.Query;
 using Ydb.Query.V1;
@@ -22,11 +17,12 @@ internal class PoolingSession : IPoolingSession
 
     private readonly IDriver _driver;
     private readonly PoolingSessionSource _poolingSessionSource;
-    private readonly YdbConnectionStringBuilder _settings;
     private readonly ILogger<PoolingSession> _logger;
 
     private volatile bool _isBroken;
 
+    private readonly bool _disableServerBalancer;
+    
     private string SessionId { get; set; } = string.Empty;
     private long NodeId { get; set; }
 
@@ -35,13 +31,13 @@ internal class PoolingSession : IPoolingSession
     internal PoolingSession(
         IDriver driver,
         PoolingSessionSource poolingSessionSource,
-        YdbConnectionStringBuilder settings,
+        bool disableServerBalancer,
         ILogger<PoolingSession> logger
     )
     {
         _driver = driver;
         _poolingSessionSource = poolingSessionSource;
-        _settings = settings;
+        _disableServerBalancer = disableServerBalancer;
         _logger = logger;
     }
 
@@ -122,7 +118,7 @@ public async Task Open(CancellationToken cancellationToken)
     {
         var requestSettings = new GrpcRequestSettings { CancellationToken = cancellationToken };
 
-        if (!_settings.DisableServerBalancer)
+        if (!_disableServerBalancer)
         {
             requestSettings.ClientCapabilities.Add(SessionBalancer);
         }