Re: SV: Re: [users@httpd] Distributed Web Server

David Filion <df@xxxxxxxxxxx> · Tue, 04 Jul 2006 10:54:37 -0400

Danesh Daroui wrote:

Hi Frank,

I think we are talking about different things. I already know that it 

is possible to have a web site on multiple server (of course with 

different addresses). What I am looking for, is to have mutiple web 

servers on one address (single IP), where multiple servers cooperate 

with each other to handle incomming requests.

D.

*/frankpeng@xxxxxxxxxxxx/* skrev:

    I have a database cluster to support my webserver mirrors. The
    webserver is distributable to install multiple mirrors. There is
    no way
    to have bottlenecks. These are the two mirrors on different
    machinese:
    http://breakevilaxis.org/mvnforum/mvnforum/index?lang=en
    http://www.ddint.org/mvnforum/mvnforum/index?lang=en
    If you like french, it will be
    http://breakevilaxis.org/mvnforum/mvnforum/index?lang=fr ....
    Once you find your bottleneck, you wil fix it.

    Frank Peng.

    -----Original Message-----
    From: Alexander Lazic
    To: users@xxxxxxxxxxxxxxxx
    Sent: Mon, 3 Jul 2006 09:29:06 +0200
    Subject: Re: [users@httpd] Distributed Web Server

    Hi, 

    On Mon 03.07.2006 04:52, Danesh Daroui wrote: 

    > 

    >I have set up a web server using Apache and it used to work fine

    until 

    >my site's hit grew up and now it has serious problems because of 

    >intensive clients traffic. I would like to set up other systems to 

    >cooperate with my main server and serve clients as well as my main 

    >server to make ballance when the server is overloaded. How can I

    tell 

    >Apache to cooperate and in other words set up a distributed

    network of 

    >web servers which all servers serves my site? Do I need to install a 

    >new module? Any solution? 

    There are many solutions for this *problem* but the first step,

    for me 

    is, where are the real bottlenecks: 

    1.) application 

    2.) bandwith (as Chris wrot) 

    3.) MaxClients to low 

    4.) some timeouts to high 

    5.) *internal* Kommunication to slow (DB <=> APPL,APPL <=> WEBServer, 

    WEBServer <=> Client, ... ) 

    6.) ..... 

    For the solutions: 

    1.) HW-Loadbalancer 

    2.) SW-Loadbalancer 

    3.) ... 

    HTH 

    Regards 

    Alex 

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Have you looked at LVS (http://www.linuxvirtualserver.org/)?  It's a 

software based load balancer (ie. you provide the box).   We use it for 

load balancing across our web servers.  No complaints. 

(crappy graphics time....)

     ______
     |  ISP  |
     ---+---
          |
          |
     ---+---
     | LVS |
          |
 --------------------------
 |              switch              |
 --------------------------

      |               |             |         

 ---+---    ---+---   ---+---

 |httpd1|    |httpd2|   |httpd3|...

David f.

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