Release 2.2.5 (#162)

* update version to 2.2.4

* Fixed Incorrect local IP address judgment of IPv6. (#140)

* Fixed DateTime localization format conversion error to sql.(#139)

* update version to 2.2.5

* remove unused constructor.

* Fixed DateTime localization format conversion error to sql.(#139)

* Improved logging

* support RabbitMQ cluster configuration.

* Fixed dashboard message page re-requeue and re-executed  operate bug. (#158)

* refactor code

* refactor log extensions.

* refactor retry task processor.

* Fixed  configuration options of FailedThresholdCallback could not be invoke when the value less then three.  (#161)

* update samples.

* Fixed SendAsync or ExecuteAsync recursion retries bug. (#160)

* Fixed SendAsync or ExecuteAsync recursion retries bug. (#160)

build/version.props

@@ -2,7 +2,7 @@
 	<PropertyGroup>
 		<VersionMajor>2</VersionMajor>
 		<VersionMinor>2</VersionMinor>
-		<VersionPatch>4</VersionPatch>
+		<VersionPatch>5</VersionPatch>
 		<VersionQuality></VersionQuality>
 		<VersionPrefix>$(VersionMajor).$(VersionMinor).$(VersionPatch)</VersionPrefix>
 	</PropertyGroup>

samples/Sample.RabbitMQ.MySql/Startup.cs

-using Microsoft.AspNetCore.Builder;
+using System;
+using Microsoft.AspNetCore.Builder;
 using Microsoft.AspNetCore.Hosting;
 using Microsoft.Extensions.DependencyInjection;
 using Microsoft.Extensions.Logging;
@@ -16,6 +17,11 @@ namespace Sample.RabbitMQ.MySql
                 x.UseEntityFramework<AppDbContext>();
                 x.UseRabbitMQ("localhost");
                 x.UseDashboard();
+                x.FailedRetryCount = 5;
+                x.FailedThresholdCallback = (type, name, content) =>
+                {
+                    Console.WriteLine($@"A message of type {type} failed after executing {x.FailedRetryCount} several times, requiring manual troubleshooting. Message name: {name}, message body: {content}");
+                };
             });
 
             services.AddMvc();

src/DotNetCore.CAP.MySql/MySqlStorageConnection.cs

@@ -42,7 +42,7 @@ namespace DotNetCore.CAP.MySql
 
         public async Task<IEnumerable<CapPublishedMessage>> GetPublishedMessagesOfNeedRetry()
         {
-            var fourMinsAgo = DateTime.Now.AddMinutes(-4);
+            var fourMinsAgo = DateTime.Now.AddMinutes(-4).ToString("O");
             var sql =
                 $"SELECT * FROM `{_prefix}.published` WHERE `Retries`<{_capOptions.FailedRetryCount} AND `Added`<'{fourMinsAgo}' AND (`StatusName` = '{StatusName.Failed}' OR `StatusName` = '{StatusName.Scheduled}') LIMIT 200;";
 
@@ -80,7 +80,7 @@ VALUES(@Name,@Group,@Content,@Retries,@Added,@ExpiresAt,@StatusName);SELECT LAST
 
         public async Task<IEnumerable<CapReceivedMessage>> GetReceivedMessagesOfNeedRetry()
         {
-            var fourMinsAgo = DateTime.Now.AddMinutes(-4);
+            var fourMinsAgo = DateTime.Now.AddMinutes(-4).ToString("O");
             var sql =
                 $"SELECT * FROM `{_prefix}.received` WHERE `Retries`<{_capOptions.FailedRetryCount} AND `Added`<'{fourMinsAgo}' AND (`StatusName` = '{StatusName.Failed}' OR `StatusName` = '{StatusName.Scheduled}') LIMIT 200;";
             using (var connection = new MySqlConnection(Options.ConnectionString))

src/DotNetCore.CAP.PostgreSql/PostgreSqlStorageConnection.cs

@@ -40,7 +40,7 @@ namespace DotNetCore.CAP.PostgreSql
 
         public async Task<IEnumerable<CapPublishedMessage>> GetPublishedMessagesOfNeedRetry()
         {
-            var fourMinsAgo = DateTime.Now.AddMinutes(-4);
+            var fourMinsAgo = DateTime.Now.AddMinutes(-4).ToString("O");
             var sql =
                 $"SELECT * FROM \"{Options.Schema}\".\"published\" WHERE \"Retries\"<{_capOptions.FailedRetryCount} AND \"Added\"<'{fourMinsAgo}' AND (\"StatusName\"='{StatusName.Failed}' OR \"StatusName\"='{StatusName.Scheduled}') LIMIT 200;";
 
@@ -77,7 +77,7 @@ namespace DotNetCore.CAP.PostgreSql
 
         public async Task<IEnumerable<CapReceivedMessage>> GetReceivedMessagesOfNeedRetry()
         {
-            var fourMinsAgo = DateTime.Now.AddMinutes(-4);
+            var fourMinsAgo = DateTime.Now.AddMinutes(-4).ToString("O"); 
             var sql =
                 $"SELECT * FROM \"{Options.Schema}\".\"received\" WHERE \"Retries\"<{_capOptions.FailedRetryCount} AND \"Added\"<'{fourMinsAgo}' AND (\"StatusName\"='{StatusName.Failed}' OR \"StatusName\"='{StatusName.Scheduled}') LIMIT 200;";
             using (var connection = new NpgsqlConnection(Options.ConnectionString))

src/DotNetCore.CAP.RabbitMQ/CAP.RabbiMQOptions.cs

@@ -37,7 +37,10 @@ namespace DotNetCore.CAP
         /// <summary> The topic exchange type. </summary>
         public const string ExchangeType = "topic";
 
-        /// <summary>The host to connect to.</summary>
+        /// <summary>
+        /// The host to connect to.
+        /// If you want connect to the cluster, you can assign like “192.168.1.111,192.168.1.112”
+        /// </summary>
         public string HostName { get; set; } = "localhost";
 
         /// <summary>

src/DotNetCore.CAP.RabbitMQ/IConnectionChannelPool.Default.cs

@@ -76,7 +76,6 @@ namespace DotNetCore.CAP.RabbitMQ
         {
             var factory = new ConnectionFactory
             {
-                HostName = options.HostName,
                 UserName = options.UserName,
                 Port = options.Port,
                 Password = options.Password,
@@ -86,6 +85,13 @@ namespace DotNetCore.CAP.RabbitMQ
                 SocketWriteTimeout = options.SocketWriteTimeout
             };
 
+            if (options.HostName.Contains(","))
+            {
+                return () => factory.CreateConnection(
+                    options.HostName.Split(new[] { "," }, StringSplitOptions.RemoveEmptyEntries));
+            }
+
+            factory.HostName = options.HostName;
             return () => factory.CreateConnection();
         }
 

src/DotNetCore.CAP.SqlServer/SqlServerStorageConnection.cs

@@ -40,7 +40,7 @@ namespace DotNetCore.CAP.SqlServer
 
         public async Task<IEnumerable<CapPublishedMessage>> GetPublishedMessagesOfNeedRetry()
         {
-            var fourMinsAgo = DateTime.Now.AddMinutes(-4);
+            var fourMinsAgo = DateTime.Now.AddMinutes(-4).ToString("O");
             var sql =
                 $"SELECT TOP (200) * FROM [{Options.Schema}].[Published] WITH (readpast) WHERE Retries<{_capOptions.FailedRetryCount} AND Added<'{fourMinsAgo}' AND (StatusName = '{StatusName.Failed}' OR StatusName = '{StatusName.Scheduled}')";
 
@@ -78,7 +78,7 @@ VALUES(@Name,@Group,@Content,@Retries,@Added,@ExpiresAt,@StatusName);SELECT SCOP
 
         public async Task<IEnumerable<CapReceivedMessage>> GetReceivedMessagesOfNeedRetry()
         {
-            var fourMinsAgo = DateTime.Now.AddMinutes(-4);
+            var fourMinsAgo = DateTime.Now.AddMinutes(-4).ToString("O");
             var sql =
                 $"SELECT TOP (200) * FROM [{Options.Schema}].[Received] WITH (readpast) WHERE Retries<{_capOptions.FailedRetryCount} AND Added<'{fourMinsAgo}' AND (StatusName = '{StatusName.Failed}' OR StatusName = '{StatusName.Scheduled}')";
             using (var connection = new SqlConnection(Options.ConnectionString))

src/DotNetCore.CAP/Abstractions/CapPublisherBase.cs

@@ -182,7 +182,7 @@ namespace DotNetCore.CAP.Abstractions
             }
             catch (Exception e)
             {
-                _logger.LogError("An exception was occurred when publish message. exception message:" + e.Message, e);
+                _logger.LogError(e, "An exception was occurred when publish message async. exception message:" + name);
                 s_diagnosticListener.WritePublishMessageStoreError(operationId, message, e);
                 Console.WriteLine(e);
                 throw;
@@ -204,10 +204,11 @@ namespace DotNetCore.CAP.Abstractions
 
             try
             {
+                Console.WriteLine("================22222222222222=====================");
                 operationId = s_diagnosticListener.WritePublishMessageStoreBefore(message);               
 
                 var id = Execute(DbConnection, DbTransaction, message);
-
+                Console.WriteLine("================777777777777777777777=====================");
                 ClosedCap();
 
                 if (id > 0)
@@ -220,7 +221,7 @@ namespace DotNetCore.CAP.Abstractions
             }
             catch (Exception e)
             {
-                _logger.LogError("An exception was occurred when publish message. exception message:" + e.Message, e);
+                _logger.LogError(e, "An exception was occurred when publish message. message:" + name);
                 s_diagnosticListener.WritePublishMessageStoreError(operationId, message, e);
                 Console.WriteLine(e);
                 throw;

src/DotNetCore.CAP/Dashboard/DashboardRequest.cs

@@ -28,19 +28,14 @@ namespace DotNetCore.CAP.Dashboard
 
         public CapDashboardRequest(HttpContext context)
         {
-            if (context == null)
-            {
-                throw new ArgumentNullException(nameof(context));
-            }
-
-            _context = context;
+            _context = context ?? throw new ArgumentNullException(nameof(context)); 
         }
 
         public override string Method => _context.Request.Method;
         public override string Path => _context.Request.Path.Value;
         public override string PathBase => _context.Request.PathBase.Value;
-        public override string LocalIpAddress => _context.Connection.LocalIpAddress.ToString();
-        public override string RemoteIpAddress => _context.Connection.RemoteIpAddress.ToString();
+        public override string LocalIpAddress => _context.Connection.LocalIpAddress.MapToIPv4().ToString();
+        public override string RemoteIpAddress => _context.Connection.RemoteIpAddress.MapToIPv4().ToString();
 
         public override string GetQuery(string key)
         {

src/DotNetCore.CAP/Dashboard/DashboardRoutes.cs

@@ -3,7 +3,7 @@
 
 using System.Reflection;
 using DotNetCore.CAP.Dashboard.Pages;
-using DotNetCore.CAP.Infrastructure;
+using Microsoft.Extensions.DependencyInjection;
 
 namespace DotNetCore.CAP.Dashboard
 {
@@ -83,24 +83,34 @@ namespace DotNetCore.CAP.Dashboard
             Routes.AddJsonResult("/published/message/(?<Id>.+)", x =>
             {
                 var id = int.Parse(x.UriMatch.Groups["Id"].Value);
-                var message = x.Storage.GetConnection().GetPublishedMessageAsync(id).GetAwaiter().GetResult();
+                var message = x.Storage.GetConnection().GetPublishedMessageAsync(id)
+                    .GetAwaiter().GetResult();
                 return message.Content;
             });
             Routes.AddJsonResult("/received/message/(?<Id>.+)", x =>
             {
                 var id = int.Parse(x.UriMatch.Groups["Id"].Value);
-                var message = x.Storage.GetConnection().GetReceivedMessageAsync(id).GetAwaiter().GetResult();
+                var message = x.Storage.GetConnection().GetReceivedMessageAsync(id)
+                    .GetAwaiter().GetResult();
                 return message.Content;
             });
 
             Routes.AddPublishBatchCommand(
                 "/published/requeue",
                 (client, messageId) =>
-                    client.Storage.GetConnection().ChangePublishedState(messageId, StatusName.Scheduled));
+                {
+                    var msg = client.Storage.GetConnection().GetPublishedMessageAsync(messageId)
+                        .GetAwaiter().GetResult(); 
+                    client.RequestServices.GetService<IDispatcher>().EnqueueToPublish(msg);
+                });
             Routes.AddPublishBatchCommand(
                 "/received/requeue",
                 (client, messageId) =>
-                    client.Storage.GetConnection().ChangeReceivedState(messageId, StatusName.Scheduled));
+                {
+                    var msg = client.Storage.GetConnection().GetReceivedMessageAsync(messageId)
+                        .GetAwaiter().GetResult();
+                    client.RequestServices.GetService<IDispatcher>().EnqueueToExecute(msg);
+                }); 
 
             Routes.AddRazorPage(
                 "/published/(?<StatusName>.+)",

src/DotNetCore.CAP/Dashboard/LocalRequestsOnlyAuthorizationFilter.cs

@@ -9,26 +9,27 @@ namespace DotNetCore.CAP.Dashboard
     {
         public bool Authorize(DashboardContext context)
         {
+            var ipAddress = context.Request.RemoteIpAddress;
             // if unknown, assume not local
-            if (string.IsNullOrEmpty(context.Request.RemoteIpAddress))
+            if (string.IsNullOrEmpty(ipAddress))
             {
                 return false;
             }
 
             // check if localhost
-            if (context.Request.RemoteIpAddress == "127.0.0.1" || context.Request.RemoteIpAddress == "::1")
+            if (ipAddress == "127.0.0.1" || ipAddress == "0.0.0.1")
             {
                 return true;
             }
 
             // compare with local address
-            if (context.Request.RemoteIpAddress == context.Request.LocalIpAddress)
+            if (ipAddress == context.Request.LocalIpAddress)
             {
                 return true;
             }
 
             // check if private ip
-            if (Helper.IsInnerIP(context.Request.RemoteIpAddress))
+            if (Helper.IsInnerIP(ipAddress))
             {
                 return true;
             }

src/DotNetCore.CAP/IPublishMessageSender.Base.cs

@@ -43,6 +43,24 @@ namespace DotNetCore.CAP
         public abstract Task<OperateResult> PublishAsync(string keyName, string content);
 
         public async Task<OperateResult> SendAsync(CapPublishedMessage message)
+        {
+            bool retry;
+            OperateResult result;
+            do
+            {
+                var executedResult = await SendWithoutRetryAsync(message);
+                result = executedResult.Item2;
+                if (result == OperateResult.Success)
+                {
+                    return result;
+                }
+                retry = executedResult.Item1;
+            } while (retry);
+
+            return result;
+        }
+
+        private async Task<(bool, OperateResult)> SendWithoutRetryAsync(CapPublishedMessage message)
         {
             var startTime = DateTimeOffset.UtcNow;
             var stopwatch = Stopwatch.StartNew();
@@ -63,60 +81,33 @@ namespace DotNetCore.CAP
 
                 TracingAfter(operationId, message.Name, sendValues, startTime, stopwatch.Elapsed);
 
-                return OperateResult.Success;
+                return (false, OperateResult.Success);
             }
             else
             {
                 TracingError(operationId, message, result, startTime, stopwatch.Elapsed);
 
-                await SetFailedState(message, result.Exception, out bool stillRetry);
-
-                if (stillRetry)
-                {
-                    _logger.SenderRetrying(message.Id, message.Retries);
-
-                    await SendAsync(message);
-                }
-                return OperateResult.Failed(result.Exception);
-            }
+                var needRetry = await SetFailedState(message, result.Exception);
+                return (needRetry, OperateResult.Failed(result.Exception));
             }
-
-        private static bool UpdateMessageForRetryAsync(CapPublishedMessage message)
-        {
-            var retryBehavior = RetryBehavior.DefaultRetry;
-
-            var retries = ++message.Retries;
-            if (retries >= retryBehavior.RetryCount)
-            {
-                return false;
         }
 
-            var due = message.Added.AddSeconds(retryBehavior.RetryIn(retries));
-            message.ExpiresAt = due;
-
-            return true;
-        }
 
         private Task SetSuccessfulState(CapPublishedMessage message)
         {
             var succeededState = new SucceededState(_options.SucceedMessageExpiredAfter);
-
             return _stateChanger.ChangeStateAsync(message, succeededState, _connection);
         }
 
-        private Task SetFailedState(CapPublishedMessage message, Exception ex, out bool stillRetry)
-        {
-            IState newState = new FailedState();
-            stillRetry = UpdateMessageForRetryAsync(message);
-            if (stillRetry)
+        private async Task<bool> SetFailedState(CapPublishedMessage message, Exception ex)
         {
-                _logger.ConsumerExecutionFailedWillRetry(ex);
-                return Task.CompletedTask;
-            }
-
             AddErrorReasonToContent(message, ex);
 
-            return _stateChanger.ChangeStateAsync(message, newState, _connection);
+            var needRetry = UpdateMessageForRetry(message);
+
+            await _stateChanger.ChangeStateAsync(message, new FailedState(), _connection);
+
+            return needRetry;
         }
 
         private static void AddErrorReasonToContent(CapPublishedMessage message, Exception exception)
@@ -124,6 +115,37 @@ namespace DotNetCore.CAP
             message.Content = Helper.AddExceptionProperty(message.Content, exception);
         }
 
+        private bool UpdateMessageForRetry(CapPublishedMessage message)
+        {
+            var retryBehavior = RetryBehavior.DefaultRetry;
+
+            var retries = ++message.Retries;
+            message.ExpiresAt = message.Added.AddSeconds(retryBehavior.RetryIn(retries));
+
+            var retryCount = Math.Min(_options.FailedRetryCount, retryBehavior.RetryCount);
+            if (retries >= retryCount)
+            {
+                if (retries == _options.FailedRetryCount)
+                {
+                    try
+                    {
+                        _options.FailedThresholdCallback?.Invoke(MessageType.Subscribe, message.Name, message.Content);
+
+                        _logger.SenderAfterThreshold(message.Id, _options.FailedRetryCount);
+                    }
+                    catch (Exception ex)
+                    {
+                        _logger.ExecutedThresholdCallbackFailed(ex);
+                    }
+                }
+                return false;
+            }
+
+            _logger.SenderRetrying(message.Id, retries);
+
+            return true;
+        }
+
         private (Guid, TracingHeaders) TracingBefore(string topic, string values)
         {
             Guid operationId = Guid.NewGuid();

src/DotNetCore.CAP/ISubscribeExecutor.Default.cs

@@ -50,6 +50,29 @@ namespace DotNetCore.CAP
         private IConsumerInvoker Invoker { get; }
 
         public async Task<OperateResult> ExecuteAsync(CapReceivedMessage message)
+        {
+            bool retry;
+            OperateResult result;
+            do
+            {
+                var executedResult = await ExecuteWithoutRetryAsync(message);
+                result = executedResult.Item2;
+                if (result == OperateResult.Success)
+                {
+                    return result;
+                }
+                retry = executedResult.Item1;
+            } while (retry);
+
+            return result;
+        }
+
+        /// <summary>
+        /// Execute message consumption once.
+        /// </summary>
+        /// <param name="message">the message rececived of <see cref="CapReceivedMessage"/></param>
+        /// <returns>Item1 is need still restry, Item2 is executed result.</returns>
+        private async Task<(bool, OperateResult)> ExecuteWithoutRetryAsync(CapReceivedMessage message)
         {
             if (message == null)
             {
@@ -68,65 +91,65 @@ namespace DotNetCore.CAP
 
                 _logger.ConsumerExecuted(sp.Elapsed.TotalSeconds);
 
-                return OperateResult.Success;
+                return (false, OperateResult.Success);
             }
             catch (Exception ex)
             {
                 _logger.LogError(ex, $"An exception occurred while executing the subscription method. Topic:{message.Name}, Id:{message.Id}");
 
-                await SetFailedState(message, ex, out bool stillRetry);
-                if (stillRetry)
-                {
-                    await ExecuteAsync(message);
-                }
-
-                return OperateResult.Failed(ex);
+                return (await SetFailedState(message, ex), OperateResult.Failed(ex));
             }
         }
 
         private Task SetSuccessfulState(CapReceivedMessage message)
         {
             var succeededState = new SucceededState(_options.SucceedMessageExpiredAfter);
-
             return _stateChanger.ChangeStateAsync(message, succeededState, _connection);
         }
 
-        private Task SetFailedState(CapReceivedMessage message, Exception ex, out bool stillRetry)
+        private async Task<bool> SetFailedState(CapReceivedMessage message, Exception ex)
         {
-            IState newState = new FailedState();
-
             if (ex is SubscriberNotFoundException)
             {
-                stillRetry = false;
                 message.Retries = _options.FailedRetryCount; // not retry if SubscriberNotFoundException
             }
-            else
-            {
-                stillRetry = UpdateMessageForRetry(message);
-                if (stillRetry)
-                {
-                    _logger.ConsumerExecutionFailedWillRetry(ex);
-                    return Task.CompletedTask;
-                }
-            }
 
             AddErrorReasonToContent(message, ex);
 
-            return _stateChanger.ChangeStateAsync(message, newState, _connection);
+            var needRetry = UpdateMessageForRetry(message);
+
+            await _stateChanger.ChangeStateAsync(message, new FailedState(), _connection);
+
+            return needRetry;
         }
 
-        private static bool UpdateMessageForRetry(CapReceivedMessage message)
+        private bool UpdateMessageForRetry(CapReceivedMessage message)
         {
             var retryBehavior = RetryBehavior.DefaultRetry;
 
             var retries = ++message.Retries;
-            if (retries >= retryBehavior.RetryCount)
+            message.ExpiresAt = message.Added.AddSeconds(retryBehavior.RetryIn(retries));
+
+            var retryCount = Math.Min(_options.FailedRetryCount, retryBehavior.RetryCount);
+            if (retries >= retryCount)
+            {
+                if (retries == _options.FailedRetryCount)
+                {
+                    try
                     {
+                        _options.FailedThresholdCallback?.Invoke(MessageType.Subscribe, message.Name, message.Content);
+
+                        _logger.ConsumerExecutedAfterThreshold(message.Id, _options.FailedRetryCount);
+                    }
+                    catch (Exception ex)
+                    {
+                        _logger.ExecutedThresholdCallbackFailed(ex);
+                    }
+                }
                 return false;
             }
 
-            var due = message.Added.AddSeconds(retryBehavior.RetryIn(retries));
-            message.ExpiresAt = due;
+            _logger.ConsumerExecutionRetrying(message.Id, retries);
 
             return true;
         }

src/DotNetCore.CAP/LoggerExtensions.cs

@@ -10,141 +10,70 @@ namespace DotNetCore.CAP
     [SuppressMessage("ReSharper", "InconsistentNaming")]
     internal static class LoggerExtensions
     {
-        private static readonly Action<ILogger, Exception> _serverStarting;
-        private static readonly Action<ILogger, Exception> _processorsStartingError;
-        private static readonly Action<ILogger, Exception> _serverShuttingDown;
-        private static readonly Action<ILogger, string, Exception> _expectedOperationCanceledException;
-        private static readonly Action<ILogger, string, string, string, Exception> _modelBinderFormattingException;
-        private static readonly Action<ILogger, Exception> _consumerFailedWillRetry;
-        private static readonly Action<ILogger, double, Exception> _consumerExecuted;
-        private static readonly Action<ILogger, int, int, Exception> _senderRetrying;
-        private static readonly Action<ILogger, string, Exception> _exceptionOccuredWhileExecuting;
-        private static readonly Action<ILogger, double, Exception> _messageHasBeenSent;
-        private static readonly Action<ILogger, int, string, Exception> _messagePublishException;
-
-        static LoggerExtensions()
+        public static void ConsumerExecutedAfterThreshold(this ILogger logger, int messageId, int retries)
         {
-            _serverStarting = LoggerMessage.Define(
-                LogLevel.Debug,
-                1,
-                "Starting the processing server.");
-
-            _processorsStartingError = LoggerMessage.Define(
-                LogLevel.Error,
-                5,
-                "Starting the processors throw an exception.");
-
-            _serverShuttingDown = LoggerMessage.Define(
-                LogLevel.Information,
-                2,
-                "Shutting down the processing server...");
-
-            _expectedOperationCanceledException = LoggerMessage.Define<string>(
-                LogLevel.Warning,
-                3,
-                "Expected an OperationCanceledException, but found '{ExceptionMessage}'.");
-
-            LoggerMessage.Define<string>(
-                LogLevel.Error,
-                5,
-                "Consumer method '{methodName}' failed to execute.");
-
-            LoggerMessage.Define<string>(
-                LogLevel.Error,
-                5,
-                "Received message topic method '{topicName}' failed to execute.");
-
-            _modelBinderFormattingException = LoggerMessage.Define<string, string, string>(
-                LogLevel.Error,
-                5,
-                "When call subscribe method, a parameter format conversion exception occurs. MethodName:'{MethodName}' ParameterName:'{ParameterName}' Content:'{Content}'."
-            );
-
-            _senderRetrying = LoggerMessage.Define<int, int>(
-                LogLevel.Debug,
-                3,
-                "The {Retries}th retrying send a message failed. message id: {MessageId} ");
-
-            _consumerExecuted = LoggerMessage.Define<double>(
-                LogLevel.Debug,
-                4,
-                "Consumer executed. Took: {Seconds} secs.");
-
-            _consumerFailedWillRetry = LoggerMessage.Define(
-                LogLevel.Warning,
-                2,
-                "Consumer failed to execute. Will retry.");
-
-            _exceptionOccuredWhileExecuting = LoggerMessage.Define<string>(
-                LogLevel.Error,
-                6,
-                "An exception occured while trying to store a message. message id: {MessageId}");
+            logger.LogWarning($"The Subscriber of the message({messageId}) still fails after {retries}th executions and we will stop retrying.");
+        }
 
-            _messageHasBeenSent = LoggerMessage.Define<double>(
-                LogLevel.Debug,
-                4,
-                "Message published. Took: {Seconds} secs.");
+        public static void SenderAfterThreshold(this ILogger logger, int messageId, int retries)
+        {
+            logger.LogWarning($"The Publisher of the message({messageId}) still fails after {retries}th sends and we will stop retrying.");
+        }
 
-            _messagePublishException = LoggerMessage.Define<int, string>(
-                LogLevel.Error,
-                6,
-                "An exception occured while publishing a message, reason:{Reason}. message id:{MessageId}");
+        public static void ExecutedThresholdCallbackFailed(this ILogger logger, Exception ex)
+        {
+            logger.LogWarning(ex, "FailedThresholdCallback action raised an exception:" + ex.Message);
         }
 
-        public static void ConsumerExecutionFailedWillRetry(this ILogger logger, Exception ex)
+        public static void ConsumerExecutionRetrying(this ILogger logger, int messageId, int retries)
         {
-            _consumerFailedWillRetry(logger, ex);
+            logger.LogWarning($"The {retries}th retrying consume a message failed. message id: {messageId}");
         }
 
         public static void SenderRetrying(this ILogger logger, int messageId, int retries)
         {
-            _senderRetrying(logger, messageId, retries, null);
+            logger.LogWarning($"The {retries}th retrying send a message failed. message id: {messageId} ");
         }
 
         public static void MessageHasBeenSent(this ILogger logger, double seconds)
         {
-            _messageHasBeenSent(logger, seconds, null);
+            logger.LogDebug($"Message published. Took: {seconds} secs.");
         }
 
         public static void MessagePublishException(this ILogger logger, int messageId, string reason, Exception ex)
         {
-            _messagePublishException(logger, messageId, reason, ex);
+            logger.LogError(ex, $"An exception occured while publishing a message, reason:{reason}. message id:{messageId}");
         }
 
         public static void ConsumerExecuted(this ILogger logger, double seconds)
         {
-            _consumerExecuted(logger, seconds, null);
+            logger.LogDebug($"Consumer executed. Took: {seconds} secs.");
         }
 
         public static void ServerStarting(this ILogger logger)
         {
-            _serverStarting(logger, null);
+            logger.LogInformation("Starting the processing server.");
         }
 
         public static void ProcessorsStartedError(this ILogger logger, Exception ex)
         {
-            _processorsStartingError(logger, ex);
+            logger.LogError(ex, "Starting the processors throw an exception.");
         }
 
         public static void ServerShuttingDown(this ILogger logger)
         {
-            _serverShuttingDown(logger, null);
+            logger.LogInformation("Shutting down the processing server...");
         }
 
         public static void ExpectedOperationCanceledException(this ILogger logger, Exception ex)
         {
-            _expectedOperationCanceledException(logger, ex.Message, ex);
-        }
-
-        public static void ExceptionOccuredWhileExecuting(this ILogger logger, string messageId, Exception ex)
-        {
-            _exceptionOccuredWhileExecuting(logger, messageId, ex);
+            logger.LogWarning(ex, $"Expected an OperationCanceledException, but found '{ex.Message}'.");
         }
 
         public static void ModelBinderFormattingException(this ILogger logger, string methodName, string parameterName,
             string content, Exception ex)
         {
-            _modelBinderFormattingException(logger, methodName, parameterName, content, ex);
+            logger.LogError(ex, $"When call subscribe method, a parameter format conversion exception occurs. MethodName:'{methodName}' ParameterName:'{parameterName}' Content:'{content}'.");
         }
     }
 }
\ No newline at end of file

src/DotNetCore.CAP/Models/CapPublishedMessage.cs

@@ -15,12 +15,6 @@ namespace DotNetCore.CAP.Models
             Added = DateTime.Now;
         }
 
-        public CapPublishedMessage(MessageContext message)
-        {
-            Name = message.Name;
-            Content = message.Content;
-        }
-
         public int Id { get; set; }
 
         public string Name { get; set; }

src/DotNetCore.CAP/Processor/IProcessor.NeedRetry.cs

@@ -3,11 +3,7 @@
 
 using System;
 using System.Threading.Tasks;
-using DotNetCore.CAP.Infrastructure;
-using DotNetCore.CAP.Models;
-using DotNetCore.CAP.Processor.States;
 using Microsoft.Extensions.DependencyInjection;
-using Microsoft.Extensions.Logging;
 using Microsoft.Extensions.Options;
 
 namespace DotNetCore.CAP.Processor
@@ -15,26 +11,18 @@ namespace DotNetCore.CAP.Processor
     public class NeedRetryMessageProcessor : IProcessor
     {
         private readonly TimeSpan _delay = TimeSpan.FromSeconds(1);
-        private readonly ILogger _logger;
-        private readonly CapOptions _options;
-        private readonly IPublishExecutor _publishExecutor;
-        private readonly IStateChanger _stateChanger;
+        private readonly IPublishMessageSender _publishMessageSender;
         private readonly ISubscriberExecutor _subscriberExecutor;
         private readonly TimeSpan _waitingInterval;
 
         public NeedRetryMessageProcessor(
             IOptions<CapOptions> options,
-            ILogger<NeedRetryMessageProcessor> logger,
-            IStateChanger stateChanger,
             ISubscriberExecutor subscriberExecutor,
-            IPublishExecutor publishExecutor)
+            IPublishMessageSender publishMessageSender)
         {
-            _options = options.Value;
-            _logger = logger;
-            _stateChanger = stateChanger;
             _subscriberExecutor = subscriberExecutor;
-            _publishExecutor = publishExecutor;
-            _waitingInterval = TimeSpan.FromSeconds(_options.FailedRetryInterval);
+            _publishMessageSender = publishMessageSender;
+            _waitingInterval = TimeSpan.FromSeconds(options.Value.FailedRetryInterval);
         }
 
         public async Task ProcessAsync(ProcessingContext context)
@@ -56,57 +44,10 @@ namespace DotNetCore.CAP.Processor
         private async Task ProcessPublishedAsync(IStorageConnection connection, ProcessingContext context)
         {
             var messages = await connection.GetPublishedMessagesOfNeedRetry();
-            var hasException = false;
 
             foreach (var message in messages)
             {
-                if (message.Retries > _options.FailedRetryCount)
-                {
-                    continue;
-                }
-
-                using (var transaction = connection.CreateTransaction())
-                {
-                    var result = await _publishExecutor.PublishAsync(message.Name, message.Content);
-                    if (result.Succeeded)
-                    {
-                        _stateChanger.ChangeState(message, new SucceededState(), transaction);
-                        _logger.LogInformation("The message was sent successfully during the retry. MessageId:" + message.Id);
-                    }
-                    else
-                    {
-                        message.Content = Helper.AddExceptionProperty(message.Content, result.Exception);
-                        message.Retries++;
-                        if (message.StatusName == StatusName.Scheduled)
-                        {
-                            message.ExpiresAt = GetDueTime(message.Added, message.Retries);
-                            message.StatusName = StatusName.Failed;
-                        }
-                        transaction.UpdateMessage(message);
-
-                        if (message.Retries >= _options.FailedRetryCount)
-                        {
-                            _logger.LogError($"The message still sent failed after {_options.FailedRetryCount} retries. We will stop retrying the message. " +
-                                             "MessageId:" + message.Id);
-                            if (message.Retries == _options.FailedRetryCount)
-                            {
-                                if (!hasException)
-                                {
-                                    try
-                                    {
-                                        _options.FailedThresholdCallback?.Invoke(MessageType.Publish, message.Name, message.Content);
-                                    }
-                                    catch (Exception ex)
-                                    {
-                                        hasException = true;
-                                        _logger.LogWarning("Failed call-back method raised an exception:" + ex.Message);
-                                    }
-                                }
-                            }
-                        }
-                    }
-                    await transaction.CommitAsync();
-                }
+                await _publishMessageSender.SendAsync(message);
 
                 context.ThrowIfStopping();
 
@@ -117,69 +58,15 @@ namespace DotNetCore.CAP.Processor
         private async Task ProcessReceivedAsync(IStorageConnection connection, ProcessingContext context)
         {
             var messages = await connection.GetReceivedMessagesOfNeedRetry();
-            var hasException = false;
 
             foreach (var message in messages)
             {
-                if (message.Retries > _options.FailedRetryCount)
-                {
-                    continue;
-                }
-
-                using (var transaction = connection.CreateTransaction())
-                {
-                    var result = await _subscriberExecutor.ExecuteAsync(message);
-                    if (result.Succeeded)
-                    {
-                        _stateChanger.ChangeState(message, new SucceededState(), transaction);
-                        _logger.LogInformation("The message was execute successfully during the retry. MessageId:" + message.Id);
-                    }
-                    else
-                    {
-                        message.Content = Helper.AddExceptionProperty(message.Content, result.Exception);
-                        message.Retries++;
-                        if (message.StatusName == StatusName.Scheduled)
-                        {
-                            message.ExpiresAt = GetDueTime(message.Added, message.Retries);
-                            message.StatusName = StatusName.Failed;
-                        }
-                        transaction.UpdateMessage(message);
-
-                        if (message.Retries >= _options.FailedRetryCount)
-                        {
-                            _logger.LogError($"[Subscriber]The message still executed failed after {_options.FailedRetryCount} retries. " +
-                                             "We will stop retrying to execute the message. message id:" + message.Id);
-
-                            if (message.Retries == _options.FailedRetryCount)
-                            {
-                                if (!hasException)
-                                {
-                                    try
-                                    {
-                                        _options.FailedThresholdCallback?.Invoke(MessageType.Subscribe, message.Name, message.Content);
-                                    }
-                                    catch (Exception ex)
-                                    {
-                                        hasException = true;
-                                        _logger.LogWarning("Failed call-back method raised an exception:" + ex.Message);
-                                    }
-                                }
-                            }
-                        }
-                    }
-                    await transaction.CommitAsync();
-                }
+                await _subscriberExecutor.ExecuteAsync(message);
 
                 context.ThrowIfStopping();
 
                 await context.WaitAsync(_delay);
             }
         } 
-
-        public DateTime GetDueTime(DateTime addedTime, int retries)
-        {
-            var retryBehavior = RetryBehavior.DefaultRetry;
-            return addedTime.AddSeconds(retryBehavior.RetryIn(retries));
-        }
     }
 }
\ No newline at end of file