diff --git a/src/DotNetCore.CAP.Kafka/IConnectionPool.Default.cs b/src/DotNetCore.CAP.Kafka/IConnectionPool.Default.cs
index 1993661..21b8398 100644
--- a/src/DotNetCore.CAP.Kafka/IConnectionPool.Default.cs
+++ b/src/DotNetCore.CAP.Kafka/IConnectionPool.Default.cs
@@ -6,23 +6,29 @@ using System.Collections.Concurrent;
 using System.Diagnostics;
 using System.Threading;
 using Confluent.Kafka;
+using Microsoft.Extensions.Logging;
+using Newtonsoft.Json;
 
 namespace DotNetCore.CAP.Kafka
 {
     public class ConnectionPool : IConnectionPool, IDisposable
     {
+        private readonly ILogger<ConnectionPool> _logger;
         private readonly Func<Producer> _activator;
-        private readonly ConcurrentQueue<Producer> _pool = new ConcurrentQueue<Producer>();
+        private readonly ConcurrentQueue<Producer> _pool;
         private int _count;
-
         private int _maxSize;
 
-        public ConnectionPool(KafkaOptions options)
+        public ConnectionPool(ILogger<ConnectionPool> logger, KafkaOptions options)
         {
+            _logger = logger;
+            _pool = new ConcurrentQueue<Producer>();
             _maxSize = options.ConnectionPoolSize;
             _activator = CreateActivator(options);
-
             ServersAddress = options.Servers;
+
+            _logger.LogDebug("Kafka configuration of CAP :\r\n {0}",
+                JsonConvert.SerializeObject(options.AsKafkaConfig(), Formatting.Indented));
         }
 
         public string ServersAddress { get; }
diff --git a/src/DotNetCore.CAP.RabbitMQ/IConnectionChannelPool.Default.cs b/src/DotNetCore.CAP.RabbitMQ/IConnectionChannelPool.Default.cs
index e650518..e15fdfa 100644
--- a/src/DotNetCore.CAP.RabbitMQ/IConnectionChannelPool.Default.cs
+++ b/src/DotNetCore.CAP.RabbitMQ/IConnectionChannelPool.Default.cs
@@ -6,6 +6,7 @@ using System.Collections.Concurrent;
 using System.Diagnostics;
 using System.Threading;
 using Microsoft.Extensions.Logging;
+using Newtonsoft.Json;
 using RabbitMQ.Client;
 
 namespace DotNetCore.CAP.RabbitMQ
@@ -15,21 +16,24 @@ namespace DotNetCore.CAP.RabbitMQ
         private const int DefaultPoolSize = 15;
         private readonly Func<IConnection> _connectionActivator;
         private readonly ILogger<ConnectionChannelPool> _logger;
-        private readonly ConcurrentQueue<IModel> _pool = new ConcurrentQueue<IModel>();
+        private readonly ConcurrentQueue<IModel> _pool;
         private IConnection _connection;
 
         private int _count;
         private int _maxSize;
 
-        public ConnectionChannelPool(ILogger<ConnectionChannelPool> logger,
-            RabbitMQOptions options)
+        public ConnectionChannelPool(ILogger<ConnectionChannelPool> logger, RabbitMQOptions options)
         {
             _logger = logger;
             _maxSize = DefaultPoolSize;
-
+            _pool = new ConcurrentQueue<IModel>();
             _connectionActivator = CreateConnection(options);
+
             HostAddress = options.HostName + ":" + options.Port;
             Exchange = options.ExchangeName;
+
+            _logger.LogDebug("RabbitMQ configuration of CAP :\r\n {0}",
+                JsonConvert.SerializeObject(options, Formatting.Indented));
         }
 
         IModel IConnectionChannelPool.Rent()
@@ -87,7 +91,7 @@ namespace DotNetCore.CAP.RabbitMQ
 
         private void RabbitMQ_ConnectionShutdown(object sender, ShutdownEventArgs e)
         {
-            _logger.LogWarning($"RabbitMQ client connection closed! {e}");
+            _logger.LogWarning($"RabbitMQ client connection closed! --> {e.ReplyText}");
         }
 
         public virtual IModel Rent()
diff --git a/src/DotNetCore.CAP.RabbitMQ/RabbitMQConsumerClient.cs b/src/DotNetCore.CAP.RabbitMQ/RabbitMQConsumerClient.cs
index a34054f..972b6dd 100644
--- a/src/DotNetCore.CAP.RabbitMQ/RabbitMQConsumerClient.cs
+++ b/src/DotNetCore.CAP.RabbitMQ/RabbitMQConsumerClient.cs
@@ -93,7 +93,7 @@ namespace DotNetCore.CAP.RabbitMQ
             _connection = _connectionChannelPool.GetConnection();
 
             _channel = _connection.CreateModel();
-
+            
             _channel.ExchangeDeclare(
                 _exchageName,
                 RabbitMQOptions.ExchangeType,
@@ -155,7 +155,7 @@ namespace DotNetCore.CAP.RabbitMQ
             var args = new LogMessageEventArgs
             {
                 LogType = MqLogType.ConsumerShutdown,
-                Reason = e.ToString()
+                Reason =  e.ReplyText
             };
             OnLog?.Invoke(sender, args);
         }
diff --git a/src/DotNetCore.CAP/IConsumerHandler.Default.cs b/src/DotNetCore.CAP/IConsumerHandler.Default.cs
index 1d441ff..e2179ff 100644
--- a/src/DotNetCore.CAP/IConsumerHandler.Default.cs
+++ b/src/DotNetCore.CAP/IConsumerHandler.Default.cs
@@ -146,22 +146,22 @@ namespace DotNetCore.CAP
             switch (logmsg.LogType)
             {
                 case MqLogType.ConsumerCancelled:
-                    _logger.LogWarning("RabbitMQ consumer cancelled. reason: " + logmsg.Reason);
+                    _logger.LogWarning("RabbitMQ consumer cancelled. --> " + logmsg.Reason);
                     break;
                 case MqLogType.ConsumerRegistered:
-                    _logger.LogInformation("RabbitMQ consumer registered. " + logmsg.Reason);
+                    _logger.LogInformation("RabbitMQ consumer registered. --> " + logmsg.Reason);
                     break;
                 case MqLogType.ConsumerUnregistered:
-                    _logger.LogWarning("RabbitMQ consumer unregistered. reason: " + logmsg.Reason);
+                    _logger.LogWarning("RabbitMQ consumer unregistered. --> " + logmsg.Reason);
                     break;
                 case MqLogType.ConsumerShutdown:
-                    _logger.LogWarning("RabbitMQ consumer shutdown. reason:" + logmsg.Reason);
+                    _logger.LogWarning("RabbitMQ consumer shutdown. --> " + logmsg.Reason);
                     break;
                 case MqLogType.ConsumeError:
-                    _logger.LogError("Kakfa client consume error. reason:" + logmsg.Reason);
+                    _logger.LogError("Kakfa client consume error. --> " + logmsg.Reason);
                     break;
                 case MqLogType.ServerConnError:
-                    _logger.LogCritical("Kafka server connection error. reason:" + logmsg.Reason);
+                    _logger.LogCritical("Kafka server connection error. --> " + logmsg.Reason);
                     break;
                 default:
                     throw new ArgumentOutOfRangeException();