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Posted to users@tomcat.apache.org by 许明 <hs...@qq.com> on 2015/06/30 19:22:15 UTC
回复： 回复： why only 2 requests for async request can raise from a end-point?
Hi, Christopher,
yes, i connect tomcat directly, port is 8080.
I wrote the test tool in pure non-block mode, so just one thread in c#, and i used webbrowser, wget, telnet to perform this test too.
It's very strange that it wont happen when the tomcat run in localhost, this problem exist only between different machines. and I had write a simple echo server for compare, the echo server can accept many connection as expected.
now i run tomcat in embed mode, hope i can find out what happened...
Thanks
------------------ 原始邮件 ------------------
发件人: "Christopher Schultz";<ch...@christopherschultz.net>;
发送时间: 2015年7月1日(星期三) 凌晨1:04
收件人: "Tomcat Users List"<us...@tomcat.apache.org>;
主题: Re: 回复： why only 2 requests for async request can raise from a end-point?
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Hash: SHA256
许明,
On 6/29/15 5:37 AM, 许明 wrote:
> I wrote a test tool with c#, not with browser, and each request
> has it's own session, that browser not support now.
>
> And, PHP and IIS can change option to set the limitation of one
> end-point requests, so i can't agree browser has this limit.
>
> I have run tomcat in localhost, and 100 requests are allowed, it's
> only appear when the server and client run on different machine.
Are you connecting directly to Tomcat, or are you connecting through IIS
?
How many threads are you starting in your C# driver?
- -chris
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回复： 回复： 回复： why only 2 requests for async request can raise from a end-point?
Posted by 许明 <hs...@qq.com>.
sorry, it's a .net problem
.net - How can I programmatically remove the 2 connection limit in WebClient - Stack Overflow
http://stackoverflow.com/questions/866350/how-can-i-programmatically-remove-the-2-connection-limit-in-webclient
There is a limit in the number of simultaneous outgoing HTTP connections. I think you can control this by using the System.Net.ServicePointManager.DefaultConnectionLimit static property before creating the HttpWebRequest objects.
------------------ 原始邮件 ------------------
发件人: "许明";<hs...@qq.com>;
发送时间: 2015年7月1日(星期三) 中午11:42
收件人: "users"<us...@tomcat.apache.org>;
主题: 回复： 回复： 回复： why only 2 requests for async request can raise from a end-point?
Hi Christopher,
after your advise, i recheck all arround, and it's really raise from the c# test program. :(
there is a bug in WebRequest, i dont know what happend in this class, since requesting to localhost is ok. and if pure Socket, or WebClient.DownloadStringAsync wont meet this bug. if not your firm advice, i will never doubt about this.
Best Regards
------------------ 原始邮件 ------------------
发件人: "Christopher Schultz";<ch...@christopherschultz.net>;
发送时间: 2015年7月1日(星期三) 凌晨2:00
收件人: "Tomcat Users List"<us...@tomcat.apache.org>;
主题: Re: 回复： 回复： why only 2 requests for async request can raise from a end-point?
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA256
许明,
On 6/30/15 1:22 PM, 许明 wrote:
> yes, i connect tomcat directly, port is 8080.
>
> I wrote the test tool in pure non-block mode, so just one thread
> in c#, and i used webbrowser, wget, telnet to perform this test
> too.
So you have a single thread managing multiple WS connections to
Tomcat? What I'm trying to determine is how many connections you are
actually opening. How many connections is the CLR willing to open to a
single WS endpoint?
> It's very strange that it wont happen when the tomcat run in
> localhost, this problem exist only between different machines. and
> I had write a simple echo server for compare, the echo server can
> accept many connection as expected.
>
> now i run tomcat in embed mode, hope i can find out what
> happened...
I wonder if this is something the CLR is doing to you. Can you
instrument the client as well as the server?
- -chris
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回复： 回复： 回复： why only 2 requests for async request can raise from a end-point?
Posted by 许明 <hs...@qq.com>.
Hi Christopher,
after your advise, i recheck all arround, and it's really raise from the c# test program. :(
there is a bug in WebRequest, i dont know what happend in this class, since requesting to localhost is ok. and if pure Socket, or WebClient.DownloadStringAsync wont meet this bug. if not your firm advice, i will never doubt about this.
Best Regards
------------------ 原始邮件 ------------------
发件人: "Christopher Schultz";<ch...@christopherschultz.net>;
发送时间: 2015年7月1日(星期三) 凌晨2:00
收件人: "Tomcat Users List"<us...@tomcat.apache.org>;
主题: Re: 回复： 回复： why only 2 requests for async request can raise from a end-point?
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA256
许明,
On 6/30/15 1:22 PM, 许明 wrote:
> yes, i connect tomcat directly, port is 8080.
>
> I wrote the test tool in pure non-block mode, so just one thread
> in c#, and i used webbrowser, wget, telnet to perform this test
> too.
So you have a single thread managing multiple WS connections to
Tomcat? What I'm trying to determine is how many connections you are
actually opening. How many connections is the CLR willing to open to a
single WS endpoint?
> It's very strange that it wont happen when the tomcat run in
> localhost, this problem exist only between different machines. and
> I had write a simple echo server for compare, the echo server can
> accept many connection as expected.
>
> now i run tomcat in embed mode, hope i can find out what
> happened...
I wonder if this is something the CLR is doing to you. Can you
instrument the client as well as the server?
- -chris
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=Wmnl
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Re: 回复： 回复： why only 2 requests for async request can raise from a end-point?
Posted by Christopher Schultz <ch...@christopherschultz.net>.
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA256
许明,
On 6/30/15 1:22 PM, 许明 wrote:
> yes, i connect tomcat directly, port is 8080.
>
> I wrote the test tool in pure non-block mode, so just one thread
> in c#, and i used webbrowser, wget, telnet to perform this test
> too.
So you have a single thread managing multiple WS connections to
Tomcat? What I'm trying to determine is how many connections you are
actually opening. How many connections is the CLR willing to open to a
single WS endpoint?
> It's very strange that it wont happen when the tomcat run in
> localhost, this problem exist only between different machines. and
> I had write a simple echo server for compare, the echo server can
> accept many connection as expected.
>
> now i run tomcat in embed mode, hope i can find out what
> happened...
I wonder if this is something the CLR is doing to you. Can you
instrument the client as well as the server?
- -chris
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=Wmnl
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