Removed server balancer flag from driver config and renamed session list

Author: LiamHamsters

src/Ydb.Sdk/src/Ado/YdbConnectionStringBuilder.cs

@@ -347,8 +347,7 @@ internal async Task<IDriver> BuildDriver()
             Password = Password,
             EnableMultipleHttp2Connections = EnableMultipleHttp2Connections,
             MaxSendMessageSize = MaxSendMessageSize,
-            MaxReceiveMessageSize = MaxReceiveMessageSize,
-            DisableServerBalancer = DisableServerBalancer
+            MaxReceiveMessageSize = MaxReceiveMessageSize
         };
         var loggerFactory = LoggerFactory ?? NullLoggerFactory.Instance;
 

src/Ydb.Sdk/src/DriverConfig.cs

@@ -27,7 +27,6 @@ public class DriverConfig
 
     public int MaxSendMessageSize { get; init; } = GrpcDefaultSettings.MaxSendMessageSize;
     public int MaxReceiveMessageSize { get; init; } = GrpcDefaultSettings.MaxReceiveMessageSize;
-    public bool DisableServerBalancer { get; init; } = SessionPoolDefaultSettings.DisableServerBalancer;
 
     internal X509Certificate2Collection CustomServerCertificates { get; } = new();
     internal TimeSpan EndpointDiscoveryInterval = TimeSpan.FromMinutes(1);

src/Ydb.Sdk/src/GrpcRequestSettings.cs

@@ -8,9 +8,9 @@ public class GrpcRequestSettings
 {
     public string TraceId { get; set; } = string.Empty;
     public TimeSpan TransportTimeout { get; set; } = TimeSpan.Zero;
-    public List<string> List { get; } = new();
     public CancellationToken CancellationToken = default;
-
+    
+    internal List<string> ClientCapabilities { get; } = new();
     internal long NodeId { get; set; }
     internal Action<Grpc.Core.Metadata> TrailersHandler { get; set; } = _ => { };
 }

src/Ydb.Sdk/src/IDriver.cs

@@ -182,7 +182,7 @@ protected async ValueTask<CallOptions> GetCallOptions(GrpcRequestSettings settin
             meta.Add(Metadata.RpcTraceIdHeader, settings.TraceId);
         }
 
-        foreach (var setting in settings.List) {
+        foreach (var setting in settings.ClientCapabilities) {
             meta.Add(Metadata.RpcClientCapabilitiesHeader, "session-balancer");
         }
 

src/Ydb.Sdk/src/Services/Query/SessionPool.cs

@@ -42,7 +42,7 @@ protected override async Task<Session> CreateSession(
 
         if (!Config.DisableServerBalancer)
         {
-            requestSettings.List.Add("session-balancer");
+            requestSettings.ClientCapabilities.Add("session-balancer");
         }
 
         var response = await _driver.UnaryCall(

src/Ydb.Sdk/src/Services/Table/SessionPool.cs

@@ -31,7 +31,7 @@ private protected override async Task<GetSessionResponse> CreateSession()
 
         if (!Config.DisableServerBalancer)
         {
-            createSessionSettings.List.Add("session-balancer");
+            createSessionSettings.ClientCapabilities.Add("session-balancer");
         }
 
         var createSessionResponse = await _tableClient.CreateSession(createSessionSettings);