similar to: Design flaw? - num_processors, accept/close

I''ve posted this to rails-deployment as well. I have to administer a medium size rails app (1''5 million requests each day), recently I''ve switched from lighttpd + fcgi to apache + mongrel. In the following lines I am going to describe the platform: All machines are running Debian Etch, with 4 gb ram and dual core intel32 processors. Web server runs debian''s

On 10/23/07, Robert Mela <rob at robmela.com> wrote: > Several years back I accidentally discovered that multiple processes can > listen on the same TCP/IP socket. The trick of course is that all the > processes are in the same process group, and the socket is opened by a > shared parent. The OS somehow was managing queuing up the various > calls to accept() on that

I''d like to implement output compression in Mongrel (ala Apache''s mod_deflate). I have found a Rails plugin that, with minor modification, works. Is there even an advantage to moving the output compression from the Rails app to a Mongrel handler? Unless, of course, someone knows how to configure mod_proxy_balancer with mod_deflate... == Will Green Web Developer & IT

I am using Apache2.2 + mod_proxy_balancer + mongrel setup and my mongrel.conf file(for apache is like this) 2 3 <Proxy balancer://mongrel_cluster> 4 BalancerMember http://127.0.0.1:9000 5 BalancerMember http://127.0.0.1:9001 6 BalancerMember http://127.0.0.1:9002 7 </Proxy> 8 9 <VirtualHost *> 10 ServerAdmin rags at

We have been searching for a Rails deployment architecture which works for us for some time. We''ve recently moved from Apache 1.3 + FastCGI to Apache 2.2 + mod_proxy_balancer + mongrel_cluster, and it''s a significant improvement. But it still exhibits serious performance problems. We have the beginnings of a fix that we would like to share. To illustrate the problem, imagine a

Our group has several web apps developed in ColdFusion, PHP, and Rails. The ColdFusion and PHP apps are on an older server, and the Rails apps on a new server. Ideally, we''d like them all to share the same server. Our current setup for the Rails server is Apache2.2 with mod_proxy_balancer and mongrel_cluster. We''d like to have specific directories be processed and served by

I''ve been hunting the web and reading the mailing lists all day but I''m not finding any guidance on this problem. When I try to talk to my mongrel it simply responds with NOT FOUND and nothing else. I can''t find anything on google because this has to be the second most commond phrase in existence. Any help or guidance would be greatly appreciated. Sincerely, Chuck Vose

I''d like to use Mongrel_cluster with SSL on a green-field application (it can be configured however is best - initially, "ease of setup" is important, but then soon after will be scaling and response time). I''ve read a lot of emails on this topic, and checked out the Mongrel pages, etc, but I''m left with this question of what is recommended: For a

Hi all, I''m currently trying to get Mongrel running my app whilst fronted by apache 2.2 in a sub-directory via https. A bit convoluted I''ll grant you but necessitated by existing systems. The pertinent parts of my httpd.conf: <VirtualHost 123.123.123.123:12345> #historic choice of random port number DocumentRoot /var/www/admin ServerName admin.example.com:12345

I am using mongrel_cluster with mod_proxy_balancer and would like to enable compression (assuming it improves throughtput) and limit file size upload. I configured mod_deflate and LimitRequestSize in Apache, but in my trials looks like the proxied calls bypass those directives (the conf goes below). Is there a way to get this? -- fxn # Adapt this .example locally, as usual. # # To be

If this was in the docs, I''ve missed it. How can I have multiple mongrel clusters on a server? All the documentation that I am seeing seems to assume that I am only running one cluster.

This small patch extends configure_socket_options to support FreeBSD''s accf_http(9), which defers accept() until there''s a full HTTP request to read. Seems to work fine on 6.1-STABLE. DragonflyBSD should work too provided the /freebsd/ line is modified to match it. accf_http(9): http://www.freebsd.org/cgi/man.cgi?query=accf_http&sektion=9 -- Thomas

I''m setting up a new server in anticipation of switching from lighttpd+fcgi. My application isn''t completely imported yet, so I don''t expect it to work. For instance right now when pulling up my app from localhost I get my Ruby/Rails MySQL error message. But when I pull it up from a remote computer I get a proxy error from Apache: ====================== Proxy Error

Hi mongrel users! I just posted a bad-ass capistrano file that automates *everything* for setting up an apache2+mod_proxy_balancer and mongrel+mongrel_cluster -- including apache2 setups. It''s based off Coda Hale''s guide and all Bradley''s work at fluxura and RailsMachine (thanks Coda and Bradley!). It''s, well, bad-ass, if I must say so myself. My favorite

I started the mongrel_cluster and tried to use the RewriteRule to forward the requests to proxy_balancer just as the http://mongrel.rubyforge.org/docs/apache.html said. When I visited my site from a remote computer, I always got the error messages "Forbidden, You don''t have permission to access / on this server." Finally, I added the "Allow from all" property (in the

Hello all. I too found out that I sometimes have some action that can take up to 10 seconds in my rails application. I''ve read all arguments Zed made about polling/and inbox strategies, and I think I just can''t work around my feeling that a "wrong" request that takes up too much time should be able to lock subsequent requests in mongrels queue. That''s what

Our Mephisto install kills Mongrels and causes Apache to pound the CPU. This started when we moved to Apache+mod_proxy_balancer+Mongrel. Here''s what we know: The following things are working OK, except when used in the combination listed above: mongrel, mongrel_rails, MySQL, Apache, mod_proxy_balancer. We believe these are all OK because we moved five other Rails apps to this

Hi, I''ve got an app which will only be dealing with a few requests a minute for most of the time, then will shoot up to a continuous 20 req/s for an hour at a time. We''ll potentially be running a lot of instances of this app on the same server. Is there any way to have additional instances of Mongrel be started when the existing instance(s) stopping being able to handle

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I am not sure what i am doing wrong here, but no matter what i try i get no output from mongrel_config: $ mongrel_rails configtool $ telnet localhost 3001 Trying 127.0.0.1... Connected to localhost. Escape character is ''^]''. GET /config/ HTTP/1.1 HTTP/1.1 200 OK Connection: close Date: Tue, 19 Dec 2006 05:33:16 GMT Content-Type: text/html Content-Length: 0 Connection closed by