diff --git a/CAP.sln b/CAP.sln
index 174a366..952416d 100644
--- a/CAP.sln
+++ b/CAP.sln
@@ -58,7 +58,7 @@ Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "DotNetCore.CAP.PostgreSql",
 EndProject
 Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "DotNetCore.CAP.PostgreSql.Test", "test\DotNetCore.CAP.PostgreSql.Test\DotNetCore.CAP.PostgreSql.Test.csproj", "{7CA3625D-1817-4695-881D-7E79A1E1DED2}"
 EndProject
-Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "Sample.Kafka.MySql", "samples\Sample.Kafka.SqlServer\Sample.Kafka.MySql.csproj", "{573B4D39-5489-48B3-9B6C-5234249CB980}"
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "Sample.Kafka.MySql", "samples\Sample.Kafka.MySql\Sample.Kafka.MySql.csproj", "{9CB51105-A85B-42A4-AFDE-A4FC34D9EA91}"
 EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
@@ -109,10 +109,10 @@ Global
 		{7CA3625D-1817-4695-881D-7E79A1E1DED2}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{7CA3625D-1817-4695-881D-7E79A1E1DED2}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{7CA3625D-1817-4695-881D-7E79A1E1DED2}.Release|Any CPU.Build.0 = Release|Any CPU
-		{573B4D39-5489-48B3-9B6C-5234249CB980}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
-		{573B4D39-5489-48B3-9B6C-5234249CB980}.Debug|Any CPU.Build.0 = Debug|Any CPU
-		{573B4D39-5489-48B3-9B6C-5234249CB980}.Release|Any CPU.ActiveCfg = Release|Any CPU
-		{573B4D39-5489-48B3-9B6C-5234249CB980}.Release|Any CPU.Build.0 = Release|Any CPU
+		{9CB51105-A85B-42A4-AFDE-A4FC34D9EA91}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{9CB51105-A85B-42A4-AFDE-A4FC34D9EA91}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{9CB51105-A85B-42A4-AFDE-A4FC34D9EA91}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{9CB51105-A85B-42A4-AFDE-A4FC34D9EA91}.Release|Any CPU.Build.0 = Release|Any CPU
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE
@@ -129,7 +129,7 @@ Global
 		{9F3F9BFE-7B6A-4A7A-A6E6-8B517D611873} = {3A6B6931-A123-477A-9469-8B468B5385AF}
 		{82C403AB-ED68-4084-9A1D-11334F9F08F9} = {9B2AE124-6636-4DE9-83A3-70360DABD0C4}
 		{7CA3625D-1817-4695-881D-7E79A1E1DED2} = {C09CDAB0-6DD4-46E9-B7F3-3EF2A4741EA0}
-		{573B4D39-5489-48B3-9B6C-5234249CB980} = {3A6B6931-A123-477A-9469-8B468B5385AF}
+		{9CB51105-A85B-42A4-AFDE-A4FC34D9EA91} = {3A6B6931-A123-477A-9469-8B468B5385AF}
 	EndGlobalSection
 	GlobalSection(ExtensibilityGlobals) = postSolution
 		SolutionGuid = {2E70565D-94CF-40B4-BFE1-AC18D5F736AB}
diff --git a/samples/Sample.Kafka.SqlServer/Controllers/ValuesController.cs b/samples/Sample.Kafka.MySql/Controllers/ValuesController.cs
similarity index 100%
rename from samples/Sample.Kafka.SqlServer/Controllers/ValuesController.cs
rename to samples/Sample.Kafka.MySql/Controllers/ValuesController.cs
diff --git a/samples/Sample.Kafka.SqlServer/Program.cs b/samples/Sample.Kafka.MySql/Program.cs
similarity index 100%
rename from samples/Sample.Kafka.SqlServer/Program.cs
rename to samples/Sample.Kafka.MySql/Program.cs
diff --git a/samples/Sample.Kafka.SqlServer/Sample.Kafka.MySql.csproj b/samples/Sample.Kafka.MySql/Sample.Kafka.MySql.csproj
similarity index 93%
rename from samples/Sample.Kafka.SqlServer/Sample.Kafka.MySql.csproj
rename to samples/Sample.Kafka.MySql/Sample.Kafka.MySql.csproj
index 1c5a152..ad812ae 100644
--- a/samples/Sample.Kafka.SqlServer/Sample.Kafka.MySql.csproj
+++ b/samples/Sample.Kafka.MySql/Sample.Kafka.MySql.csproj
@@ -10,6 +10,7 @@
   <ItemGroup>
     <PackageReference Include="Microsoft.AspNetCore.All" Version="2.0.6" />
     <PackageReference Include="MySqlConnector" Version="0.38.0" />
+    <PackageReference Include="zipkin4net" Version="1.2.0" />
   </ItemGroup>
   <ItemGroup>
     <DotNetCliToolReference Include="Microsoft.EntityFrameworkCore.Tools.DotNet" Version="2.0.0" />
diff --git a/samples/Sample.Kafka.SqlServer/Startup.cs b/samples/Sample.Kafka.MySql/Startup.cs
similarity index 60%
rename from samples/Sample.Kafka.SqlServer/Startup.cs
rename to samples/Sample.Kafka.MySql/Startup.cs
index cdea862..419e48e 100644
--- a/samples/Sample.Kafka.SqlServer/Startup.cs
+++ b/samples/Sample.Kafka.MySql/Startup.cs
@@ -1,4 +1,5 @@
-using Microsoft.AspNetCore.Builder;
+using System;
+using Microsoft.AspNetCore.Builder;
 using Microsoft.Extensions.DependencyInjection;
 
 namespace Sample.Kafka.MySql
@@ -12,15 +13,6 @@ namespace Sample.Kafka.MySql
                 x.UseMySql("Server=192.168.10.110;Database=testcap;UserId=root;Password=123123;");
                 x.UseKafka("192.168.10.110:9092");
                 x.UseDashboard();
-
-                //x.UseDiscovery(d =>
-                //{
-                //    d.DiscoveryServerHostName = "localhost";
-                //    d.DiscoveryServerPort = 8500;
-                //    d.CurrentNodeHostName = "localhost";
-                //    d.CurrentNodePort = 5820;
-                //    d.NodeName = "CAP 2号节点";
-                //});
             });
 
             services.AddMvc();
diff --git a/samples/Sample.Kafka.SqlServer/Properties/launchSettings.json b/samples/Sample.Kafka.SqlServer/Properties/launchSettings.json
deleted file mode 100644
index 60815cf..0000000
--- a/samples/Sample.Kafka.SqlServer/Properties/launchSettings.json
+++ /dev/null
@@ -1,29 +0,0 @@
-{
-  "iisSettings": {
-    "windowsAuthentication": false,
-    "anonymousAuthentication": true,
-    "iisExpress": {
-      "applicationUrl": "http://localhost:57172/",
-      "sslPort": 0
-    }
-  },
-  "profiles": {
-    "IIS Express": {
-      "commandName": "IISExpress",
-      "launchBrowser": true,
-      "launchUrl": "cap",
-      "environmentVariables": {
-        "ASPNETCORE_ENVIRONMENT": "Development"
-      }
-    },
-    "Sample.Kafka.SqlServer": {
-      "commandName": "Project",
-      "launchBrowser": true,
-      "launchUrl": "cap",
-      "environmentVariables": {
-        "ASPNETCORE_ENVIRONMENT": "Development"
-      },
-      "applicationUrl": "http://localhost:57174/"
-    }
-  }
-}
\ No newline at end of file