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Posted to users@httpd.apache.org by Ng Kean Thian <ke...@b2b.com.my> on 2012/06/25 13:34:58 UTC
[users@httpd] maximum MPM winnt thread supported in apache http server
Dear all,
I have configured my Apache HTTP Server's MPM maximum thread with the
following configuration:
<IfModule mpm_winnt_module>
ThreadsPerChild 3465
MaxRequestsPerChild 0
ThreadLimit 4000
</IfModule>
Whenever I configured the 'ThreadsPerChild' with a value more than 3463, I
will hit '(OS 8)Unrecognized Win32 error code 8: Child 3316: _beginthreadex
failed. Unable to create all worker threads. Created 3463 of the 3500
threads requested with the ThreadsPerChild configuration directive.'. My
apache http server is running in Windows Server 2008 R2 64 bit.
Would like to check, is that the maximum thread creatable? If it is not,
what could be the possible reasons causing the error?
Regards,
KT
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Re: [users@httpd] maximum MPM winnt thread supported in apache http server
Posted by Eric Covener <co...@gmail.com>.
On Mon, Jun 25, 2012 at 7:34 AM, Ng Kean Thian <ke...@b2b.com.my> wrote:
> Dear all,
> I have configured my Apache HTTP Server's MPM maximum thread with the
> following configuration:
>
> <IfModule mpm_winnt_module>
> ThreadsPerChild 3465
> MaxRequestsPerChild 0
> ThreadLimit 4000
> </IfModule>
>
> Whenever I configured the 'ThreadsPerChild' with a value more than 3463, I
> will hit '(OS 8)Unrecognized Win32 error code 8: Child 3316: _beginthreadex
> failed. Unable to create all worker threads. Created 3463 of the 3500
> threads requested with the ThreadsPerChild configuration directive.'. My
> apache http server is running in Windows Server 2008 R2 64 bit.
>
> Would like to check, is that the maximum thread creatable? If it is not,
> what could be the possible reasons causing the error?
You're process is growing past 2GB. Use a 64-bit build if you want
lots of threads on 64-bit windows. Each thread takes up some address
space size and you quickly run out in a 32-bit process on a 64-bit
Windows.
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