Threading Exception - Please Help

[Chakra Venkatesan]

Hi,
I am getting an exception in my ASP.NET application as shown below,

at System.Threadin g.WaitHandle.Wa itOneNative(Int Ptr waitHandle, UInt32
millisecondsTim eout, Boolean exitContext)
at System.Threadin g.WaitHandle.Wa itOne(Int32 millisecondsTim eout, Boolean
exitContext)
at System.Net.Http WebRequest.GetR equestStream()
when I use the System.Net.Http WebRequest.GetR equestStream() or the
System.Net.Http WebRequest.GetR esponseStream() methods. This doesn't
happen always but happens after the application is in use for sometime.
There is no definite pattern. I am not able to reproduce this during
load testing.

What is this exception and why is it happenning? I am calling another web
application and do a POST using the HttpWebRequest.

Here is a snippet of my code,

objHttpWebReque st = (HttpWebRequest ) WebRequest.Crea te(
sURL );

objHttpWebReque st.ContentType = "text/xml";

bytBuffer = Encoding.ASCII. GetBytes( sData );

objHttpWebReque st.Method = "POST";
objHttpWebReque st.ContentLengt h = bytBuffer.Lengt h;

objWriteStream = objHttpWebReque st.GetRequestSt ream( );
objWriteStream. Write( bytBuffer, 0, bytBuffer.Lengt h );
objWriteStream. Close( );

// receive response
objHttpWebRespo nse = (HttpWebRespons e)
objHttpWebReque st.GetResponse( );
objResponseStre am = objHttpWebRespo nse.GetResponse Stream( );
bytBuffer = new byte[BUFFER_SIZE];
strOutput = new StringBuilder( );

iReadCount = objResponseStre am.Read( bytBuffer, 0,
BUFFER_SIZE );
while( iReadCount > 0 )
{
chrBuffer = Encoding.ASCII. GetChars( bytBuffer, 0,
iReadCount );
strOutput.Appen d( chrBuffer );
iReadCount = objResponseStre am.Read( bytBuffer, 0,
BUFFER_SIZE );
}
objResponseStre am.Close( );
objHttpWebRespo nse.Close( );

Thank you for your help this.

Chakra

[Chakra Venkatesan]

I forgot to mention that once this happens, the IIS server needs to be reset
before the application would start doing web posts again.
"Chakra Venkatesan" <ch******@hotma il.com> wrote in message
news:ek******** ******@TK2MSFTN GP11.phx.gbl...

Hi,
I am getting an exception in my ASP.NET application as shown below,

at System.Threadin g.WaitHandle.Wa itOneNative(Int Ptr waitHandle, UInt32
millisecondsTim eout, Boolean exitContext)
at System.Threadin g.WaitHandle.Wa itOne(Int32 millisecondsTim eout, Boolean exitContext)
at System.Net.Http WebRequest.GetR equestStream()
when I use the System.Net.Http WebRequest.GetR equestStream() or the
System.Net.Http WebRequest.GetR esponseStream() methods. This doesn't
happen always but happens after the application is in use for sometime.
There is no definite pattern. I am not able to reproduce this during
load testing.

What is this exception and why is it happenning? I am calling another web application and do a POST using the HttpWebRequest.

Here is a snippet of my code,

objHttpWebReque st = (HttpWebRequest ) WebRequest.Crea te(
sURL );

objHttpWebReque st.ContentType = "text/xml";

bytBuffer = Encoding.ASCII. GetBytes( sData );

objHttpWebReque st.Method = "POST";
objHttpWebReque st.ContentLengt h = bytBuffer.Lengt h;

objWriteStream = objHttpWebReque st.GetRequestSt ream( );
objWriteStream. Write( bytBuffer, 0, bytBuffer.Lengt h );
objWriteStream. Close( );

// receive response
objHttpWebRespo nse = (HttpWebRespons e)
objHttpWebReque st.GetResponse( );
objResponseStre am = objHttpWebRespo nse.GetResponse Stream( );
bytBuffer = new byte[BUFFER_SIZE];
strOutput = new StringBuilder( );

iReadCount = objResponseStre am.Read( bytBuffer, 0,
BUFFER_SIZE );
while( iReadCount > 0 )
{
chrBuffer = Encoding.ASCII. GetChars( bytBuffer, 0,
iReadCount );
strOutput.Appen d( chrBuffer );
iReadCount = objResponseStre am.Read( bytBuffer, 0,
BUFFER_SIZE );
}
objResponseStre am.Close( );
objHttpWebRespo nse.Close( );

Thank you for your help this.

Chakra