Web Service failing URGENT

[ajit]

I am working on web service which in turn call com components. if # of users
using the web service increases. Web service fails is there some why I can
prevent max # of concurrent users using the web service.

Thanks
Ajit

[Kurt Farrar]

Ajit,

Could I have a little clarity? Do you want to a) stop your web service from
falling over after a particular number of concurrent users or do you want to
b) deny access to users after a particular number of concurrent users has
been reached?

For situation a) have you considered using threading? This allows other
processes to begin in their own memory space. Also, does your calling method
require a response from your web service? If not you specify that the
webservice doesn't need to return a response, thereby allowing it to complete
it's task in it's own time and not rush to perform it's operation.

Hope these suggestions are helpful.

--
Kurt Farrar
..NET Developer & Computer Enthusiast

"ajit" wrote:

I am working on web service which in turn call com components. if # of users
using the web service increases. Web service fails is there some why I can
prevent max # of concurrent users using the web service.

Thanks
Ajit

[ajit]

Thanks Kurt,
I want to do this deny access to users after a particular number of
concurrent users has been reached?

Thanks
Ajit

"Kurt Farrar" wrote:

Ajit,

Could I have a little clarity? Do you want to a) stop your web service from
falling over after a particular number of concurrent users or do you want to
b) deny access to users after a particular number of concurrent users has
been reached?

For situation a) have you considered using threading? This allows other
processes to begin in their own memory space. Also, does your calling method
require a response from your web service? If not you specify that the
webservice doesn't need to return a response, thereby allowing it to complete
it's task in it's own time and not rush to perform it's operation.

Hope these suggestions are helpful.

--
Kurt Farrar
.NET Developer & Computer Enthusiast

"ajit" wrote:

I am working on web service which in turn call com components. if # of users
using the web service increases. Web service fails is there some why I can
prevent max # of concurrent users using the web service.

Thanks
Ajit

[Kurt Farrar]

Ajit,

You can store a 'counter' type variable in an Application variable. Each
time the web service is called you increment the number. You'll need to make
sure you properly deduct one each time the web service finishes or if an
exception occurs.

Example of how to use the webservice in VB.NET is as follows:

<WebMethod()> _
Public Function IncrementTest() As Integer
Dim niTest As Integer = Application("Test")
niTest += 1
Application("Test") = niTest
Return niTest
End Function

Example of how to use the webservice in C#.NET is as follows (I think):

Public int IncrementTest
{
int niTest = Application["Test"];
niTest ++;
Application["Test"] = niTest;
Return niTest;
}

If you invoke this method you'll see that the returned value keeps going up
by one even though they are seperate calls.

Hope this helps.
--
Kurt Farrar
..NET Developer & Computer Enthusiast

"ajit" wrote:

Thanks Kurt,
I want to do this deny access to users after a particular number of
concurrent users has been reached?

Thanks
Ajit

"Kurt Farrar" wrote:

Ajit,

Could I have a little clarity? Do you want to a) stop your web service from
falling over after a particular number of concurrent users or do you want to
b) deny access to users after a particular number of concurrent users has
been reached?

For situation a) have you considered using threading? This allows other
processes to begin in their own memory space. Also, does your calling method
require a response from your web service? If not you specify that the
webservice doesn't need to return a response, thereby allowing it to complete
it's task in it's own time and not rush to perform it's operation.

Hope these suggestions are helpful.

--
Kurt Farrar
.NET Developer & Computer Enthusiast

"ajit" wrote:

I am working on web service which in turn call com components. if # of users
using the web service increases. Web service fails is there some why I can
prevent max # of concurrent users using the web service.

Thanks
Ajit

[ajit]

Kurt,

For situation a) have you considered using threading? This allows other
processes to begin in their own memory space. Also, does your calling method
require a response from your web service? If not you specify that the
webservice doesn't need to return a response, thereby allowing it to
complete
it's task in it's own time and not rush to perform it's operation.

isnt threading handled internally by .NET framework. Can you explain this
further.
I also see that we can change max # of threads using config. file.
"processes to begin in their own memory space." Can you detail this further.
Thanks
Ajit

"Kurt Farrar" wrote:

Ajit,

You can store a 'counter' type variable in an Application variable. Each
time the web service is called you increment the number. You'll need to make
sure you properly deduct one each time the web service finishes or if an
exception occurs.

Example of how to use the webservice in VB.NET is as follows:

<WebMethod()> _
Public Function IncrementTest() As Integer
Dim niTest As Integer = Application("Test")
niTest += 1
Application("Test") = niTest
Return niTest
End Function

Example of how to use the webservice in C#.NET is as follows (I think):

Public int IncrementTest
{
int niTest = Application["Test"];
niTest ++;
Application["Test"] = niTest;
Return niTest;
}

If you invoke this method you'll see that the returned value keeps going up
by one even though they are seperate calls.

Hope this helps.
--
Kurt Farrar
.NET Developer & Computer Enthusiast

"ajit" wrote:

Thanks Kurt,
I want to do this deny access to users after a particular number of
concurrent users has been reached?

Thanks
Ajit

"Kurt Farrar" wrote:

Ajit,

Could I have a little clarity? Do you want to a) stop your web service from
falling over after a particular number of concurrent users or do you want to
b) deny access to users after a particular number of concurrent users has
been reached?

For situation a) have you considered using threading? This allows other
processes to begin in their own memory space. Also, does your calling method
require a response from your web service? If not you specify that the
webservice doesn't need to return a response, thereby allowing it to complete
it's task in it's own time and not rush to perform it's operation.

Hope these suggestions are helpful.

--
Kurt Farrar
.NET Developer & Computer Enthusiast

"ajit" wrote:

> I am working on web service which in turn call com components. if # of users
> using the web service increases. Web service fails is there some why I can
> prevent max # of concurrent users using the web service.
>
> Thanks
> Ajit

[ajit]

Kurt,

Can I use Threadpool.GetAvailableThreads() method to do this?

Thanls
Ajit

"Kurt Farrar" wrote:

Ajit,

You can store a 'counter' type variable in an Application variable. Each
time the web service is called you increment the number. You'll need to make
sure you properly deduct one each time the web service finishes or if an
exception occurs.

Example of how to use the webservice in VB.NET is as follows:

<WebMethod()> _
Public Function IncrementTest() As Integer
Dim niTest As Integer = Application("Test")
niTest += 1
Application("Test") = niTest
Return niTest
End Function

Example of how to use the webservice in C#.NET is as follows (I think):

Public int IncrementTest
{
int niTest = Application["Test"];
niTest ++;
Application["Test"] = niTest;
Return niTest;
}

If you invoke this method you'll see that the returned value keeps going up
by one even though they are seperate calls.

Hope this helps.
--
Kurt Farrar
.NET Developer & Computer Enthusiast

"ajit" wrote:

Thanks Kurt,
I want to do this deny access to users after a particular number of
concurrent users has been reached?

Thanks
Ajit

"Kurt Farrar" wrote:

Ajit,

Could I have a little clarity? Do you want to a) stop your web service from
falling over after a particular number of concurrent users or do you want to
b) deny access to users after a particular number of concurrent users has
been reached?

For situation a) have you considered using threading? This allows other
processes to begin in their own memory space. Also, does your calling method
require a response from your web service? If not you specify that the
webservice doesn't need to return a response, thereby allowing it to complete
it's task in it's own time and not rush to perform it's operation.

Hope these suggestions are helpful.

--
Kurt Farrar
.NET Developer & Computer Enthusiast

"ajit" wrote:

> I am working on web service which in turn call com components. if # of users
> using the web service increases. Web service fails is there some why I can
> prevent max # of concurrent users using the web service.
>
> Thanks
> Ajit

[Kurt Farrar]

Threading is handled by .NET, yes, so you don't need to worry about hooking
into the APIs of the Operating System. As for getting the syntax to access
threading, I'm not sure, it's been a while since I've needed to use
threading.

If I remember correctly threating has it's own namespace in .NET...
System.Threading? I'm sure the MSDN Library will have this information.

Once again, I hope this helps.

--
Kurt Farrar
..NET Developer & Computer Enthusiast

"ajit" wrote:

Kurt,

For situation a) have you considered using threading? This allows other
processes to begin in their own memory space. Also, does your calling method
require a response from your web service? If not you specify that the
webservice doesn't need to return a response, thereby allowing it to
complete
it's task in it's own time and not rush to perform it's operation.

isnt threading handled internally by .NET framework. Can you explain this
further.
I also see that we can change max # of threads using config. file.
"processes to begin in their own memory space." Can you detail this further.
Thanks
Ajit

"Kurt Farrar" wrote:

Ajit,

You can store a 'counter' type variable in an Application variable. Each
time the web service is called you increment the number. You'll need to make
sure you properly deduct one each time the web service finishes or if an
exception occurs.

Example of how to use the webservice in VB.NET is as follows:

<WebMethod()> _
Public Function IncrementTest() As Integer
Dim niTest As Integer = Application("Test")
niTest += 1
Application("Test") = niTest
Return niTest
End Function

Example of how to use the webservice in C#.NET is as follows (I think):

Public int IncrementTest
{
int niTest = Application["Test"];
niTest ++;
Application["Test"] = niTest;
Return niTest;
}

If you invoke this method you'll see that the returned value keeps going up
by one even though they are seperate calls.

Hope this helps.
--
Kurt Farrar
.NET Developer & Computer Enthusiast

"ajit" wrote:

Thanks Kurt,
I want to do this deny access to users after a particular number of
concurrent users has been reached?

Thanks
Ajit

"Kurt Farrar" wrote:

> Ajit,
>
> Could I have a little clarity? Do you want to a) stop your web service from
> falling over after a particular number of concurrent users or do you want to
> b) deny access to users after a particular number of concurrent users has
> been reached?
>
> For situation a) have you considered using threading? This allows other
> processes to begin in their own memory space. Also, does your calling method
> require a response from your web service? If not you specify that the
> webservice doesn't need to return a response, thereby allowing it to complete
> it's task in it's own time and not rush to perform it's operation.
>
> Hope these suggestions are helpful.
>
> --
> Kurt Farrar
> .NET Developer & Computer Enthusiast
>
>
>
> "ajit" wrote:
>
> > I am working on web service which in turn call com components. if # of users
> > using the web service increases. Web service fails is there some why I can
> > prevent max # of concurrent users using the web service.
> >
> > Thanks
> > Ajit