Re: Problem getting http-server-close to work with Jetty backend

Sorry, forgot to mention what version I was using. This was with haproxy 1.4.2. I just tried with 1.4.3 and the problem remains.

Thanks,

Patrik

On Tue, Mar 30, 2010 at 11:51 AM, Patrik Nilsson <patrik#jalbum.net> wrote:
> Hi,
>
> We have been trying to get the new keep-alive functionality, with the
> http-server-close option, to work with our Jetty back-end web servers.
> There seems to be something in the response from the Jetty servers
> that makes HaProxy always add a Connection: close header in the
> response to the client though.
>
> Running the same HaProxy configuration with an Apache backend works fine.
>
> I've included examples below showing the requests and responses when
> going directly to the backend server, bypassing haproxy, and then the
> same request going through haproxy, for the Apache and Jetty backends.
>
> One obvious difference in the response from the Apache server is that
> it includes explicit keep-alive headers, but if I understand the
> matrix in the connection-header.txt (included in doc/internals) that
> shouldn't matter - as long as the Jetty server doesn't send a
> Connection: Close, includes a Content-Length header and both client
> and server use http/1.1 HaProxy should not add a Connection: Close
> header in the response to the client.
>
> Any ideas what might be causing our problems?
>
> Thank you,
>
> Patrik
>
>   ---------------
>   JETTY backend.
>   ---------------
>
> Direct:
> -------
>
> *Request*
>
> GET /res/jalogo.png HTTP/1.1
> Host: jetty.jalbum.test
> User-Agent: Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.6; en-US;
> rv:1.9.2) Gecko/20100115 Firefox/3.6 GTB6
> Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
> Accept-Language: en-us,en;q=0.5
> Accept-Encoding: gzip,deflate
> Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.7
> Keep-Alive: 115
> Connection: keep-alive
> Pragma: no-cache
> Cache-Control: no-cache
>
> *Response*
>
> HTTP/1.1 200 OK
> Date: Mon, 29 Mar 2010 15:32:10 GMT
> Expires: Tue, 30 Mar 2010 15:32:10 GMT
> Content-Type: image/png
> Cache-Control: max-age=86400
> Last-Modified: Tue, 16 Mar 2010 10:55:16 GMT
> Accept-Ranges: bytes
> Content-Length: 7491
> Server: Jetty(6.1.21)
>
> Through HaProxy:
> ----------------
>
> *Request*
>
> GET /res/jalogo.png HTTP/1.1
> Host: jalbum.test
> User-Agent: Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.6; en-US;
> rv:1.9.2) Gecko/20100115 Firefox/3.6 GTB6
> Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
> Accept-Language: en-us,en;q=0.5
> Accept-Encoding: gzip,deflate
> Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.7
> Keep-Alive: 115
> Connection: keep-alive
> Pragma: no-cache
> Cache-Control: no-cache
>
> *Response*
>
> HTTP/1.1 200 OK
> Date: Mon, 29 Mar 2010 15:34:42 GMT
> Expires: Tue, 30 Mar 2010 15:34:42 GMT
> Cache-Control: max-age=86400
> Content-Type: image/png
> Last-Modified: Tue, 16 Mar 2010 10:55:16 GMT
> Accept-Ranges: bytes
> Connection: close
> Server: Jetty(6.1.21)
>
>   ---------------
>   APACHE backend.
>   ---------------
>
> Direct:
> -------
>
> *Request*
>
> GET /gifs/green.gif HTTP/1.1
> Host: apache.jalbum.test
> User-Agent: Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.6; en-US;
> rv:1.9.2) Gecko/20100115 Firefox/3.6 GTB6
> Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
> Accept-Language: en-us,en;q=0.5
> Accept-Encoding: gzip,deflate
> Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.7
> Keep-Alive: 115
> Connection: keep-alive
> Pragma: no-cache
> Cache-Control: no-cache
>
> *Response*
>
> HTTP/1.1 200 OK
> Date: Mon, 29 Mar 2010 15:37:15 GMT
> Server: Apache/2.2.10 (Linux/SUSE)
> Last-Modified: Wed, 27 May 2009 15:02:43 GMT
> Etag: "de39-76-46ae622a36ac0"
> Accept-Ranges: bytes
> Content-Length: 118
> Keep-Alive: timeout=15, max=100
> Connection: Keep-Alive
> Content-Type: image/gif
>
> Through HaProxy:
> ----------------
>
> *Request*
>
> GET /gifs/green.gif HTTP/1.1
> Host: jalbum.test
> User-Agent: Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.6; en-US;
> rv:1.9.2) Gecko/20100115 Firefox/3.6 GTB6
> Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
> Accept-Language: en-us,en;q=0.5
> Accept-Encoding: gzip,deflate
> Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.7
> Keep-Alive: 115
> Connection: keep-alive
> Pragma: no-cache
> Cache-Control: no-cache
>
> *Response*
>
> HTTP/1.1 200 OK
> Date: Mon, 29 Mar 2010 15:26:17 GMT
> Server: Apache/2.2.10 (Linux/SUSE)
> Last-Modified: Wed, 27 May 2009 15:02:43 GMT
> Etag: "de39-76-46ae622a36ac0"
> Accept-Ranges: bytes
> Content-Length: 118
> Content-Type: image/gif
>
Received on 2010/03/30 14:34