Re: [Mongrel] Why Rails + mongrel_cluster + load balancing doesn't work for us and the beginning of a solution
On Mit 20.09.2006 11:18, Paul Butcher wrote: 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. Have you ever use haproxy http://haproxy.1wt.eu/ ?! He have the following feature which can help you: --- http://haproxy.1wt.eu/download/1.2/doc/haproxy-en.txt 3.4) Limiting the number of concurrent sessions on each server weight minconn maxconn --- This tool can also check the availibility of your backends. For ssl you need a ssl-termination SW such as stunnel or delegate or which ever SW you prefer. On the haproxy site you have a patch for stunnel for the x-forwarded-for header, if you need ;-) Regards Alex ___ Mongrel-users mailing list Mongrel-users@rubyforge.org http://rubyforge.org/mailman/listinfo/mongrel-users
[Mongrel] File uploads intermittent upon first form submission
I have Mongrel 0.3.13.4 running Rails 1.1.6 behind Apache 2.2.3 with mod_proxy_balancer, mongrel_cluster 0.2.0 as per the documentation, and mongrel_upload_progress 0.2, on Fedora Core 4. I'm using a cluster of three Mongrels. I have an existing app which allows users to upload files, and I'm migrating it to Mongrel from Lighttpd. Uploading files via multipart forms fails intermittently, using both my existing code and the mongrel_upload_progress example files/upload action. (My existing code doesn't reference anything to do with mongrel_upload_progress at all, so I don't think that's specifically at fault.) When it fails there is apparently no attempt to upload the file - the packets aren't being sent from my laptop and the form just sits there. A second submission of the form will work. Refresh the page, select the same file to upload, and maybe it will work first click, maybe not. Rinse and repeat. Small files less than 100kb seem to work first time, every time. Can anyone suggest an avenue of enquiry to try and work out what the problem might be? Cheers, Mike ___ Mongrel-users mailing list Mongrel-users@rubyforge.org http://rubyforge.org/mailman/listinfo/mongrel-users
[Mongrel] Static files in public
My question is about the static files in the Rails public folder. These files should be served by Apache instead of Mongrel, so do I need to upload these files to Apache's htdoc's or will Apache cache them the first time they are requested from Mongrel... Im not sure how this works? Many thanks. ___ Mongrel-users mailing list Mongrel-users@rubyforge.org http://rubyforge.org/mailman/listinfo/mongrel-users
Re: [Mongrel] How do you use Mongrel?
Well, right now I use mongrel for deploying my live rails apps. Pretty standard I guess. I've currently been using mongrel_cluster, but I would like to eventually use some kind of process monitoring (monit?). I have yet to really look into it though. The book really should cover how to use mongrel with capistrano since it seems to be the standard deployment method. I'm also working on an application that would require to track bandwidth sent out per user (members upload files and get x amount of MB of bandwidth a month). I'm thinking of writing a mongrel handler and doing it like that, but I'm not sure if that's the best way or not. -carl On 9/20/06, Matt Pelletier [EMAIL PROTECTED] wrote: Hey folks, I'm working on the Mongrel book with Zed, and wanted to get some feedback from the core users (this list) about how they use Mongrel. That sounds a bit vague, but I'm interested in hearing things about frustrating problems / workaround, preferred configurations, if you have a particular way you set up / store your config files when developing / deploying an app, for those of you running multiple handlers, if you have had to deal with any subtle issues, if there were any gotchas you encountered along the way from the docs that could be fixed (in the docs) or improved, any tricks you figured out along the way, etc. Any info will be credited properly. Thanks in advance. Matt === Matt Pelletier EastMedia t. 212-967-4239 f. 212-967-4257 m. 917-902-2525 w. www.eastmedia.com ___ Mongrel-users mailing list Mongrel-users@rubyforge.org http://rubyforge.org/mailman/listinfo/mongrel-users ___ Mongrel-users mailing list Mongrel-users@rubyforge.org http://rubyforge.org/mailman/listinfo/mongrel-users
Re: [Mongrel] How do you use Mongrel?
I'm working on the Mongrel book with Zed, and wanted to get some feedback from the core users (this list) about how they use Mongrel. That sounds a bit vague, but I'm interested in hearing things about frustrating problems / workaround, preferred configurations, if you have a particular way you set up / store your config files when developing / deploying an app, for those of you running multiple handlers, if you have had to deal with any subtle issues, if there were any gotchas you encountered along the way from the docs that could be fixed (in the docs) or improved, any tricks you figured out along the way, etc. Any info will be credited properly. The only issue we've had is related to memcache connections not closing when you do a cluster:restart. See: http://rubyforge.org/tracker/index.php?func=detailaid=5268group_id=1306atid=5145 Zed said this is a rails problem and I believe him. I imagine if I spent some time looking at it some more I'd figure out how to close the memcache connections within rails, but at the time we simply made the decision to hard restart mongrel (and apache) when necessary. Reason I mention this is the docs I was able to find about setting up memcache for use as fragment/session caching don't mention this as an issue, and it bit us... Actually I guess there is one other issue we've noticed... on a heavily hit server, restarting just mongrel, apache seems to take a little while to find it again. So we restart apache after restarting mongrel. Super minor issues all things considered :-) We were restarting lighttpd/fastcgi via cron, hourly... -philip ___ Mongrel-users mailing list Mongrel-users@rubyforge.org http://rubyforge.org/mailman/listinfo/mongrel-users
Re: [Mongrel] Static files in public
Hi! Take a look at this document: http://mongrel.rubyforge.org/docs/ apache.html You should leave the static files in the public folder of your application, and configure Apache to use rewriting (see section Configuring Apache2). Regards, Hendrik Am 21.09.2006 um 16:27 schrieb Kris Leech: My question is about the static files in the Rails public folder. These files should be served by Apache instead of Mongrel, so do I need to upload these files to Apache's htdoc's or will Apache cache them the first time they are requested from Mongrel... Im not sure how this works? Many thanks. ___ Mongrel-users mailing list Mongrel-users@rubyforge.org http://rubyforge.org/mailman/listinfo/mongrel-users ___ Mongrel-users mailing list Mongrel-users@rubyforge.org http://rubyforge.org/mailman/listinfo/mongrel-users
Re: [Mongrel] How do you use Mongrel?
Hey,We use the following elements for our deployment:1. A hardware load balancer with two servers as backends, each running:2. One lighttpd instance, routed to a pound acting as a load balancer, each with: 3. Two mongrel instances.4. A monit process on each server monitoring pound, lighty mongrel.5. A separate database server with monit running on that too.In addition, adding Capistrano's cap stop and start_mongrel_cluster magic scripts to the way we deploy. Mongrel's been amazing.VishOn 9/21/06, Carl Lerche [EMAIL PROTECTED] wrote: Well, right now I use mongrel for deploying my live rails apps. Prettystandard I guess. I've currently been using mongrel_cluster, but Iwould like to eventually use some kind of process monitoring (monit?).I have yet to really look into it though. The book really should cover how to use mongrel with capistrano since it seems to be the standarddeployment method. I'm also working on an application that wouldrequire to track bandwidth sent out per user (members upload files and get x amount of MB of bandwidth a month). I'm thinking of writing amongrel handler and doing it like that, but I'm not sure if that's thebest way or not.-carlOn 9/20/06, Matt Pelletier [EMAIL PROTECTED] wrote: Hey folks, I'm working on the Mongrel book with Zed, and wanted to get some feedback from the core users (this list) about how they use Mongrel. That sounds a bit vague, but I'm interested in hearing things about frustrating problems / workaround, preferred configurations, if you have a particular way you set up / store your config files when developing / deploying an app, for those of you running multiple handlers, if you have had to deal with any subtle issues, if there were any gotchas you encountered along the way from the docs that could be fixed (in the docs) or improved, any tricks you figured out along the way, etc. Any info will be credited properly. Thanks in advance. Matt === Matt Pelletier EastMedia t. 212-967-4239 f. 212-967-4257 m. 917-902-2525 w. www.eastmedia.com ___ Mongrel-users mailing list Mongrel-users@rubyforge.org http://rubyforge.org/mailman/listinfo/mongrel-users___Mongrel-users mailing list Mongrel-users@rubyforge.orghttp://rubyforge.org/mailman/listinfo/mongrel-users ___ Mongrel-users mailing list Mongrel-users@rubyforge.org http://rubyforge.org/mailman/listinfo/mongrel-users
Re: [Mongrel] How do you use Mongrel?
On 9/20/06, Matt Pelletier [EMAIL PROTECTED] wrote: I'm working on the Mongrel book with Zed, and wanted to get some feedback from the core users (this list) about how they use Mongrel. That sounds a bit vague, but I'm interested in hearing things about frustrating problems / workaround, preferred configurations, if you have a particular way you set up / store your config files when developing / deploying an app, for those of you running multiple handlers, if you have had to deal with any subtle issues, if there were any gotchas you encountered along the way from the docs that could be fixed (in the docs) or improved, any tricks you figured out along the way, etc. Any info will be credited properly. I have just recently (in the last two weeks) put working Mongrel support into IOWA, and I as well as some users are already using it as a deployment platform for sites and apps even though I've not done a new production release with the support, yet. I am also using the trie classifier library in one of the dispatchers that I am bundling with IOWA (dispatchers in IOWA are modular, so one can pick from a few in the distribtution, or just plug in something custom to do what one needs). Performance is comparable to using apache2 with the mod_ruby handler for communication, and is close to fcgi performance, but configuration and testing is much simpler, so it is a definite win for me. Kirk Haines ___ Mongrel-users mailing list Mongrel-users@rubyforge.org http://rubyforge.org/mailman/listinfo/mongrel-users
Re: [Mongrel] Static files in public
On 9/21/06, Kris Leech [EMAIL PROTECTED] wrote: My question is about the static files in the Rails public folder. These files should be served by Apache instead of Mongrel, so do I need to upload these files to Apache's htdoc's or will Apache cache them the first time they are requested from Mongrel... Im not sure how this works? Many Please search through the mailing list. Someone explained nicely, how rewrite rules that you probably copied from mongrel page...searches for the existence of a fileit it finds the requested file...well apache serves it..otherwise it assumes, a dynamic request and forwards it to mongrel. -- There was only one Road; that it was like a great river: its springs were at every doorstep, and every path was its tributary. ___ Mongrel-users mailing list Mongrel-users@rubyforge.org http://rubyforge.org/mailman/listinfo/mongrel-users
Re: [Mongrel] Why Rails + mongrel_cluster + load balancing doesn'twork for us and the beginning of a solution
Have you ever use haproxy http://haproxy.1wt.eu/ ?! In a word, no :-) He have the following feature which can help you: Thanks - sounds interesting. We'll give it a go! -- paul.butcher-msgCount++ Snetterton, Castle Combe, Cadwell Park... Who says I have a one track mind? MSN: [EMAIL PROTECTED] AIM: paulrabutcher Skype: paulrabutcher LinkedIn: https://www.linkedin.com/in/paulbutcher ___ Mongrel-users mailing list Mongrel-users@rubyforge.org http://rubyforge.org/mailman/listinfo/mongrel-users
Re: [Mongrel] Spinning mongrels and SIGUSR1
On Wed, 2006-09-20 at 19:22 -0700, Zed Shaw wrote: On Wed, 2006-09-20 at 18:26 -0400, Ian C. Blenke wrote: First off: Our clusters are LVS balanced Apache 2.2.3 + mod_proxy_balancer + gem mongrel 0.3.13.3 / mongrel_cluster 0.2 + memcached / gem memcache_client + gem rails 1.1.6 on debian boxen, and a pgcluster backend. On 2 of our deployed clusters, we are getting the spinning mongrel problem. As the clusters are very low volume right now, it takes days to collect a spinner, making it difficult to debug what the problem might be. From what I've been following on the list, the appropriate next debugging step is to send a SIGUSR1 signal to the spinning mongrel to get it to spit out what it thinks it is currently running. USR2 is the debugging signal. You actually want to turn it on a few minutes after they start, and it's safe to turn on in production (not much of a performance hit). I'm such an idiot. It is USR1. You've got the 0.3.13.3 version of mongrel, so you need to upgrade if you want to get the USR1 debugging. Sorry. Zed ___ Mongrel-users mailing list Mongrel-users@rubyforge.org http://rubyforge.org/mailman/listinfo/mongrel-users
[Mongrel] Sync and Mutex compatible?
With Mongrel using Sync, are there any potential problems with actions that start threads and use Mutex? Steve ___ Mongrel-users mailing list Mongrel-users@rubyforge.org http://rubyforge.org/mailman/listinfo/mongrel-users
Re: [Mongrel] thank you
On Thu Sep 21, 2006 at 07:52:05AM -0700, Carl Lerche wrote: You know, I'm going to add to this. I love mongrel. Simple, easy to use, flexible, etc... You're doing an amazing job with it :) mongrel is so easy to use, i dont even know im using it. actually removed all traces of webrick from /usr/lib/ruby and uninstalled lighttpd just to make sure. i'm not positive, but im prettty sure mongrel is my seeing eye dog when camping in the yard, fetching tent poles and scaring away indians with his ugly mug... So thanks! ___ Mongrel-users mailing list Mongrel-users@rubyforge.org http://rubyforge.org/mailman/listinfo/mongrel-users ___ Mongrel-users mailing list Mongrel-users@rubyforge.org http://rubyforge.org/mailman/listinfo/mongrel-users
