title: Service Unavailable 503 + The HTTP service located at http://localhost/ProductsService/Service.svc is too busy
body: <p>Hi I have been trying to solve my problem, however couldn't do anything about it. </p>
  
  <p>The problem is </p>
  
  <p><code>http://localhost/productservice/service.svc</code> when type this address in my browser it gives me 503 Service Unavailable error</p>
  
  <p>When I run my code from VS 2010 it gives me </p>
  
  <blockquote>
    <p>The HTTP service located at <a href="http://localhost/ProductsService/Service.svc" rel="noreferrer">http://localhost/ProductsService/Service.svc</a> is too busy.
    exception.</p>
  </blockquote>
  
  <p>ProductService is running in the ASP.NET v4.0 integrated application pool with the ApplicationPoolIdentity.</p>
  
  <p>I just got no idea what I need to do!</p>
  
  <p>(Windows 7 Home &amp; IIS7)</p>
  
  <p>basicHttpBinding is used</p>
  
  <p>the server side config is </p>
  
  <pre><code>&lt;?xml version="1.0"?&gt;
  &lt;configuration&gt;
      &lt;connectionStrings&gt;
          &lt;add name="AdventureWorksEntities" connectionString="metadata=res://*/ProductsModel.csdl|res://*/ProductsModel.ssdl|res://*/ProductsModel.msl;provider=System.Data.SqlClient;provider connection string=&amp;quot;Data Source=PINCHY\SQLEXPRESS;Initial Catalog=AdventureWorks;Integrated Security=True;MultipleActiveResultSets=True&amp;quot;" providerName="System.Data.EntityClient"/&gt;
      &lt;/connectionStrings&gt;
      &lt;system.web&gt;
          &lt;compilation debug="true" targetFramework="4.0"&gt;
              &lt;assemblies&gt;
                  &lt;add assembly="System.Data.Entity, Version=4.0.0.0, Culture=neutral, PublicKeyToken=B77A5C561934E089"/&gt;
              &lt;/assemblies&gt;
          &lt;/compilation&gt;
      &lt;/system.web&gt;
      &lt;system.serviceModel&gt;
          &lt;behaviors&gt;
              &lt;serviceBehaviors&gt;
                  &lt;behavior&gt;
                      &lt;!-- To avoid disclosing metadata information, set the value below to false and remove the metadata endpoint above before deployment --&gt;
                      &lt;serviceMetadata httpGetEnabled="true"/&gt;
                      &lt;!-- To receive exception details in faults for debugging purposes, set the value below to true.  Set to false before deployment to avoid disclosing exception information --&gt;
                      &lt;serviceDebug includeExceptionDetailInFaults="false"/&gt;
                  &lt;/behavior&gt;
              &lt;/serviceBehaviors&gt;
          &lt;/behaviors&gt;
          &lt;serviceHostingEnvironment multipleSiteBindingsEnabled="true"/&gt;
      &lt;/system.serviceModel&gt;
      &lt;system.webServer&gt;
          &lt;modules runAllManagedModulesForAllRequests="true"/&gt;
    &lt;/system.webServer&gt;
  &lt;/configuration&gt;
  </code></pre>
  
  <p>the client app.config is</p>
  
  <pre><code>&lt;?xml version="1.0" encoding="utf-8" ?&gt;
  &lt;configuration&gt;
      &lt;system.serviceModel&gt;
          &lt;bindings&gt;
              &lt;basicHttpBinding&gt;
                  &lt;binding name="BasicHttpBinding_IProductsService" closeTimeout="00:01:00"
                      openTimeout="00:01:00" receiveTimeout="00:10:00" sendTimeout="00:01:00"
                      allowCookies="false" bypassProxyOnLocal="false" hostNameComparisonMode="StrongWildcard"
                      maxBufferSize="65536" maxBufferPoolSize="524288" maxReceivedMessageSize="65536"
                      messageEncoding="Text" textEncoding="utf-8" transferMode="Buffered"
                      useDefaultWebProxy="true"&gt;
                      &lt;readerQuotas maxDepth="32" maxStringContentLength="8192" maxArrayLength="16384"
                          maxBytesPerRead="4096" maxNameTableCharCount="16384" /&gt;
                      &lt;security mode="None"&gt;
                          &lt;transport clientCredentialType="None" proxyCredentialType="None"
                              realm="" /&gt;
                          &lt;message clientCredentialType="UserName" algorithmSuite="Default" /&gt;
                      &lt;/security&gt;
                  &lt;/binding&gt;
              &lt;/basicHttpBinding&gt;
          &lt;/bindings&gt;
          &lt;client&gt;
              &lt;endpoint address="http://localhost:80/ProductsService/Service.svc"
                  binding="basicHttpBinding" bindingConfiguration="BasicHttpBinding_IProductsService"
                  contract="ProductsService.IProductsService" name="BasicHttpBinding_IProductsService" /&gt;
          &lt;/client&gt;
      &lt;/system.serviceModel&gt;
  &lt;/configuration&gt;
  </code></pre>
  
  <p>Any help will be much appreciated
  Thanks</p>