Swallow and log exceptions in MySqlDataReader.Dispose.

Author: bgrainger

src/MySqlConnector/MySqlDataReader.cs

@@ -3,6 +3,7 @@
 using System.Diagnostics;
 using System.Globalization;
 using MySqlConnector.Core;
+using MySqlConnector.Logging;
 using MySqlConnector.Protocol.Serialization;
 using MySqlConnector.Utilities;
 
@@ -610,9 +611,11 @@ internal async Task DisposeAsync(IOBehavior ioBehavior, CancellationToken cancel
 					{
 					}
 				}
-				catch (MySqlException ex) when (ex.ErrorCode == MySqlErrorCode.QueryInterrupted)
+				catch (MySqlException ex)
 				{
-					// ignore "Query execution was interrupted" exceptions when closing a data reader
+					// ignore "Query execution was interrupted" exceptions when closing a data reader; log other exceptions
+					if (ex.ErrorCode != MySqlErrorCode.QueryInterrupted)
+						Log.Warn("Session{0} ignoring exception in MySqlDataReader.DisposeAsync. Message: {1}. CommandText: {2}", Command.Connection.Session.Id, ex.Message, Command.CommandText);
 				}
 				m_resultSet = null;
 			}
@@ -678,6 +681,8 @@ private ResultSet GetResultSet()
 		return m_resultSet;
 	}
 
+	private static readonly IMySqlConnectorLogger Log = MySqlConnectorLogManager.CreateLogger(nameof(MySqlDataReader));
+
 	private readonly CommandBehavior m_behavior;
 	private readonly ICommandPayloadCreator m_payloadCreator;
 	private readonly IDictionary<string, CachedProcedure?>? m_cachedProcedures;