I'm trying to send a long string by WCF, around 64k chars long. When sending a long string, the I get the HTTP error 400. But when I send shorter string, everything works fine. Here is the WCF interface and app.config that I use.
My message contract:
[MessageContract]
public class MessageClass
{
[MessageHeader(MustUnderstand = true)]
public string id;
[MessageBodyMember(Order=1)]
public string realMessage; // Long string
}
I have tried to change the app.config settings by rising the values:
<bindings>
<basicHttpBinding>
<binding
name="ws"
transferMode="Streamed"
messageEncoding="Mtom"
maxReceivedMessageSize="10067108864">
<readerQuotas
maxDepth="32"
maxStringContentLength="2147483647"
maxArrayLength="2147483647"
maxBytesPerRead="4096"
maxNameTableCharCount="16384" />
<security mode="None">
<transport clientCredentialType="None"/>
</security>
</binding>
</basicHttpBinding>
</bindings>
Is there any other value that I should change?
You also need to set the "maxBufferSize" and "maxBufferPoolSize" on your binding:
<bindings>
<basicHttpBinding>
<binding
name="ws"
transferMode="Streamed"
messageEncoding="Mtom"
maxReceivedMessageSize="10067108864"
maxBufferSize="500000" maxBufferPoolSize="500000">
<readerQuotas
maxDepth="32"
maxStringContentLength="2147483647"
maxArrayLength="2147483647"
maxBytesPerRead="4096"
maxNameTableCharCount="16384" />
<security mode="None">
<transport clientCredentialType="None"/>
</security>
</binding>
</basicHttpBinding>
</bindings>
Those also default to 64K in WCF's standard bindings. However, since you're using the "transferMode=Streamed", this really shouldn't be an issue - maybe there's something else going on. How about also increasing the sendTimeout
setting? Maybe your service is just taking a tad too long to respond.
Marc
See the maxReceivedMessageSize attribute of the basicHttpBinding @ http://msdn.microsoft.com/en-us/library/ms731361.aspx . Coindicentally, the default is 65,536 KB.
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