Question

How to overcome the problem of max string content length in WCF services?

Asked by: tryokane

I have a requirement to build a wcf service which accepts large xml data as input and do the process of the bill and return xml with the processed data back to the called client.But when i am doing this thing i am getting a problem like the above.Can anyone suggest me what to do?My web.config and app.config files are below for reference.

The web.config file in the service:
 
<?xml version="1.0"?>
<configuration xmlns="http://schemas.microsoft.com/.NetConfiguration/v2.0">
  <system.serviceModel>
    <services>
      <!-- Before deployment, you should remove the returnFaults behavior configuration to avoid disclosing information in exception messages -->
      <service behaviorConfiguration="mexBehavior" name="MyService">
        <endpoint address="" binding="wsHttpBinding" contract="IMyService"/>
               </service>
    </services>
         <bindings>
        <wsHttpBinding>
          <binding name="NewBinding0" closeTimeout="00:10:00" openTimeout="00:10:00"
                      sendTimeout="00:10:00" maxBufferPoolSize="2147483647" maxReceivedMessageSize="2147483647"
                      messageEncoding="Text">
            <readerQuotas maxDepth="2147483647" maxStringContentLength="2147483647" maxArrayLength="2147483647"
                          maxBytesPerRead="2147483647" maxNameTableCharCount="2147483647" />
          </binding>
        </wsHttpBinding>
      </bindings>
 
       <behaviors>
        <serviceBehaviors>
        <behavior name="mexBehavior">
          <serviceMetadata httpGetEnabled="true"/>
          <serviceDebug includeExceptionDetailInFaults="true"/>
        </behavior>
      </serviceBehaviors>
    </behaviors>
  </system.serviceModel>
  <system.web>
    <compilation debug="true">
      <assemblies>
        <add assembly="ILOG.Rules, Version=3.0.2020.2, Culture=neutral, PublicKeyToken=249B1F6759E7EF16"/>
        <add assembly="ILOG.Rules.RuleEngine, Version=3.0.2020.3, Culture=neutral, PublicKeyToken=249B1F6759E7EF16"/>
        <add assembly="System.Windows.Forms, Version=2.0.0.0, Culture=neutral, PublicKeyToken=B77A5C561934E089"/>
        <add assembly="System.DirectoryServices, Version=2.0.0.0, Culture=neutral, PublicKeyToken=B03F5F7F11D50A3A"/>
        <add assembly="SMDiagnostics, Version=3.0.0.0, Culture=neutral, PublicKeyToken=B77A5C561934E089"/>
        <add assembly="System.IdentityModel.Selectors, Version=3.0.0.0, Culture=neutral, PublicKeyToken=B77A5C561934E089"/>
        <add assembly="System.Security, Version=2.0.0.0, Culture=neutral, PublicKeyToken=B03F5F7F11D50A3A"/>
        <add assembly="Microsoft.Transactions.Bridge, Version=3.0.0.0, Culture=neutral, PublicKeyToken=B03F5F7F11D50A3A"/>
        <add assembly="System.Transactions, Version=2.0.0.0, Culture=neutral, PublicKeyToken=B77A5C561934E089"/>
        <add assembly="System.Web.RegularExpressions, Version=2.0.0.0, Culture=neutral, PublicKeyToken=B03F5F7F11D50A3A"/>
        <add assembly="System.Messaging, Version=2.0.0.0, Culture=neutral, PublicKeyToken=B03F5F7F11D50A3A"/>
        <add assembly="System.ServiceProcess, Version=2.0.0.0, Culture=neutral, PublicKeyToken=B03F5F7F11D50A3A"/>
      </assemblies>
    </compilation>
  </system.web>
</configuration>
 
The app.config file in the client console application:
 
<?xml version="1.0" encoding="utf-8" ?>
<configuration>
  <system.web>
    <httpRuntime maxRequestLength="2147483647" />
  </system.web>
    <system.serviceModel>
      <bindings>
        <wsHttpBinding>
          <binding name="WSHttpBinding_IMyService" closeTimeout="00:01:00"
     openTimeout="00:01:00" receiveTimeout="00:10:00" sendTimeout="00:10:00"
     bypassProxyOnLocal="false" transactionFlow="false" hostNameComparisonMode="StrongWildcard"
     maxBufferPoolSize="2147483647" maxReceivedMessageSize="2147483647"
     messageEncoding="Text" textEncoding="utf-8" useDefaultWebProxy="true"
     allowCookies="false">
            <readerQuotas maxDepth="2147483647" maxStringContentLength="2147483647" maxArrayLength="2147483647"
                maxBytesPerRead="2147483647" maxNameTableCharCount="2147483647" />
            <reliableSession ordered="true" inactivityTimeout="00:10:00"
                enabled="false" />
            <security mode="Message">
              <transport clientCredentialType="Windows" proxyCredentialType="None"
                  realm="" />
              <message clientCredentialType="Windows" negotiateServiceCredential="true"
                  algorithmSuite="Default" establishSecurityContext="true" />
            </security>
          </binding>
        </wsHttpBinding>
      </bindings>
        <client>
            <endpoint address="http://l11-it-154a.sg.rmg.dom/ramesh/engineprocessor/WCFService/Service.svc"
                binding="wsHttpBinding" bindingConfiguration="WSHttpBinding_IMyService"
                contract="ConsoleApplication1.localhost.IMyService" name="WSHttpBinding_IMyService">
                <identity>
                    <userPrincipalName value="L11-IT-154A\ASPNET" />
                </identity>
            </endpoint>
        </client>
    </system.serviceModel>
</configuration>

                                  
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Asked On
2008-12-21 at 18:51:21ID24002313
Tags

WCF Services.

Topics

Web Services and WCF

,

Miscellaneous Web Development

,

Extensible Markup Language (XML)

Participating Experts
2
Points
500
Comments
8

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Answers

 

by: apeterPosted on 2008-12-22 at 10:37:01ID: 23228441

Can we see the full error message plz.

 

by: tryokanePosted on 2008-12-22 at 18:40:00ID: 23231124

the formatter threw an exception while trying to deserialize the message:Error in deserializing body of request message for operation 'CalculateMediSave'.The maximum string content length quota (8192) has been exceeded while reading XML data.This quota may be increased by changing the MaxStringContentLenght property on the XmldictionaryReaderQuotas object used when creating the XML reader Line 273,position 35.

 

by: apeterPosted on 2008-12-23 at 06:17:35ID: 23233638

Add also below and try.

<configuration>
  <system.web>
  <httpRuntime maxRequestLength="2147483647"
      </system.web>
</configuration>

 

by: tryokanePosted on 2009-01-04 at 19:08:18ID: 23292697

I tried the above one but still getting the same error.

 

by: tryokanePosted on 2009-01-14 at 17:02:03ID: 23379672

Anyone who can answer this one?

 

by: johanekwallPosted on 2009-01-15 at 05:43:40ID: 23383124

Check this link out: http://joewirtley.blogspot.com/2007/08/maximum-string-content-length-and.html

Looks like it is a problem when setting the "readerQuotas" attributes  to ridiculously large values.

I have a message that can be close to 5MB in size and i use the following configuration with working result. This is not optimal values, but are working with messages of 5MB in size :

If you are sending really big messages you should look over sending message in streaming mode instead of Buffered (transferMode).

<readerQuotas maxDepth="32" maxStringContentLength="8192" maxArrayLength="6000000" maxBytesPerRead="4096" maxNameTableCharCount="16384" />
 
<binding name="netTcpBindingConfig" portSharingEnabled="false" closeTimeout="00:10:00" openTimeout="00:10:00" receiveTimeout="00:10:00" sendTimeout="00:10:00" transactionFlow="false" transferMode="Buffered" transactionProtocol="OleTransactions" hostNameComparisonMode="StrongWildcard" listenBacklog="20" maxBufferPoolSize="524288" maxBufferSize="6000000" maxConnections="20" maxReceivedMessageSize="6000000">

                                              
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by: tryokanePosted on 2009-01-18 at 22:31:10ID: 31528110

Thanks for the suggestions!

20120131-EE-VQP-002

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