Handle ER_CLIENT_INTERACTION_TIMEOUT. Fixes #970

This is a new error reported from MySQL Server 8.0.24 when wait_timeout has been exceeded; it should transition the session state to failed.

Author: bgrainger

src/MySqlConnector/Core/ServerSession.cs

@@ -584,6 +584,10 @@ public async Task<bool> TryResetConnectionAsync(ConnectionSettings cs, IOBehavio
 			{
 				Log.Debug(ex, "Session{0} ignoring IOException in TryResetConnectionAsync", m_logArguments);
 			}
+			catch (MySqlException ex) when (ex.ErrorCode == MySqlErrorCode.ClientInteractionTimeout)
+			{
+				Log.Debug(ex, "Session{0} ignoring ClientInteractionTimeout MySqlException in TryResetConnectionAsync", m_logArguments);
+			}
 			catch (ObjectDisposedException ex)
 			{
 				Log.Debug(ex, "Session{0} ignoring ObjectDisposedException in TryResetConnectionAsync", m_logArguments);
@@ -795,6 +799,10 @@ public async ValueTask<bool> TryPingAsync(bool logInfo, IOBehavior ioBehavior, C
 			{
 				Log.Debug(ex, "Session{0} ping failed due to IOException", m_logArguments);
 			}
+			catch (MySqlException ex) when (ex.ErrorCode == MySqlErrorCode.ClientInteractionTimeout)
+			{
+				Log.Debug(ex, "Session{0} ping failed due to ClientInteractionTimeout MySqlException", m_logArguments);
+			}
 			catch (SocketException ex)
 			{
 				Log.Debug(ex, "Session{0} ping failed due to SocketException", m_logArguments);
@@ -1584,7 +1592,6 @@ private static void SafeDispose<T>(ref T? disposable)
 
 		internal void SetFailed(Exception exception)
 		{
-			m_logArguments[1] = exception.Message;
 			Log.Info(exception, "Session{0} setting state to Failed", m_logArguments);
 			lock (m_lock)
 				m_state = State.Failed;
@@ -1677,7 +1684,10 @@ private Exception CreateExceptionForErrorPayload(ReadOnlySpan<byte> span)
 			var errorPayload = ErrorPayload.Create(span);
 			if (Log.IsDebugEnabled())
 				Log.Debug("Session{0} got error payload: Code={1}, State={2}, Message={3}", m_logArguments[0], errorPayload.ErrorCode, errorPayload.State, errorPayload.Message);
-			return errorPayload.ToException();
+			var exception = errorPayload.ToException();
+			if (exception.ErrorCode is MySqlErrorCode.ClientInteractionTimeout)
+				SetFailed(exception);
+			return exception;
 		}
 
 		private void ClearPreparedStatements()

src/MySqlConnector/MySqlErrorCode.g.cs

@@ -3230,5 +3230,10 @@ public enum MySqlErrorCode
 		/// ER_CANT_EXECUTE_IN_READ_ONLY_TRANSACTION
 		/// </summary>
 		CannotExecuteInReadOnlyTransaction = 1792,
+
+		/// <summary>
+		/// ER_CLIENT_INTERACTION_TIMEOUT
+		/// </summary>
+		ClientInteractionTimeout = 4031
 	}
 }