CODEWITHSUNDEEP
wcfwindows-services
surpavan
surpavan

Reputation: 1412

Windows service hosting a WCF service closing immediately

I tried hosting a WCF Library service with windows service project, I installed the service, however, when i start the service in services.msc, the service start and closses immediatly. Following the message that gets displayed:

The Servicel service on Local Computer started and then stopped. Some services stop automatically if they are not in use by other services or programs.

The App.config file for wcf and the windows service project is same and it is as follows:

<?xml version="1.0" encoding="utf-8" ?>
<configuration>

  <system.web>
    <compilation debug="true" />
  </system.web>
  <!-- When deploying the service library project, the content of the config file must be added to the host's 
  app.config file. System.Configuration does not support config files for libraries. -->
  <system.serviceModel>
    <services>
      <service name="WorkMateWCF.Service1">
        <endpoint address="" binding="netTcpBinding" bindingConfiguration=""
          contract="WorkMateWCF.IService1">
          <identity>
            <dns value="localhost" />
          </identity>
        </endpoint>
        <endpoint address="mex" binding="mexTcpBinding" bindingConfiguration=""
          contract="IMetadataExchange" />
        <host>
          <baseAddresses>
            <add baseAddress="net.tcp://localhost:8523/WorkMate1" />
          </baseAddresses>
        </host>
      </service>
    </services>
    <behaviors>
      <serviceBehaviors>
        <behavior name="">
          <serviceMetadata httpGetEnabled="true" httpsGetEnabled="true" />
          <serviceDebug includeExceptionDetailInFaults="false" />
        </behavior>
      </serviceBehaviors>
    </behaviors>
  </system.serviceModel>

</configuration>

The entire project/solution is downloadable here: https://skydrive.live.com/?cid=d358d316fa2c3a37&sc=documents&uc=1&id=D358D316FA2C3A37%21135#

Could you please guide me on how to proceed further. Thank you.

Additional information: Following is the code from the service1.cs file in windows service project.

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Diagnostics;
using System.Linq;
using System.ServiceProcess;
using System.Text;
using System.ServiceModel;
using WorkMateWCF;

namespace WorkMateWinService
{
    public partial class Service1 : ServiceBase
    {
        internal static ServiceHost MyServiceHost = null;

        public Service1()
        {
            InitializeComponent();
        }

        protected override void OnStart(string[] args)
        {
            if (MyServiceHost != null)
            {
                MyServiceHost.Close();
            }
            MyServiceHost=new ServiceHost(typeof( Service1));
            MyServiceHost.Open();
        }

        protected override void OnStop()
        {
            if (MyServiceHost != null)
            {
                MyServiceHost.Close();
                MyServiceHost = null;
            }
        }
    }
}

Upvotes: 0

Views: 3520

Answers (2)

surpavan
surpavan

Reputation: 1412

Got the issue, when I reviewed my event logs I found this:

"Service cannot be started. System.InvalidOperationException: The HttpGetEnabled property of ServiceMetadataBehavior is set to true and the HttpGetUrl property is a relative address, but there is no http base address.  Either supply an http base address or set HttpGetUrl to an absolute address.
   at System.ServiceModel.Description.ServiceMetadataBehavior.EnsureGetDispatcher(ServiceHostBase host, ServiceMetadataExtension mex, Uri url, String scheme)
   at System.ServiceModel.Description.ServiceMetadataBehavior.CreateHttpGetEndpoints(ServiceDescription description, ServiceHostBase host, ServiceMetadataExtension mex)
   at System.ServiceModel.Description.ServiceMetadataBehavior.ApplyBehavior(ServiceDescription description, ServiceHostBase host)
   at System.ServiceModel.Description.ServiceMetadataBehavior.System.ServiceModel.Description.IServiceBehavior.ApplyDispatchBehavior(ServiceDescription description, ServiceHostBase serviceHostBase)
   at System.ServiceModel.Description.DispatcherBuilder.InitializeServiceHost(ServiceDescript..."

Then after thorough reviewing, the issues is that I did HTTPSGETENABLED to false only for one, infact there are two, after making the change for the other one, the app started to work like charm.

I special

Upvotes: 0

marc_s
marc_s

Reputation: 754488

What I find very confusing (and probably the .NET runtime, too) is the fact that your Windows Service is called Service1, while your WCF Service also is called Service1 (without a namespace or anything).

So which of the two Service1 class types will be used here???

MyServiceHost = new ServiceHost(typeof(Service1));

I'm not sure - and I'm afraid it will be the wrong class (the Windows NT Service class).

You should give your stuff more meaningful names and keep those things apart (by name, too) !

Upvotes: 1

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