[Mongrel] Uploading Large (100mb+) files

Rogelio Samour rogelio.samour at gmail.com
Tue Nov 28 14:26:21 EST 2006

I would like to combine what you guys are suggesting. Namely, have a merb
app (mongrel) dealio... be the sole file uploader listener. I understand the
ReWrite rules and ProxyPass magic. However, this poses a new question: how
would I go about downloading these uploaded files? I'm assuming I would want
this mongrel node to also be a file server, correct?

My only experience with setting up mongrel is through mongrel_rails. cremes:
are you saying this upload-only mongrel is it's own setup?  if so,  is there
docs on setting up something like this?

Thanks a lot for your time amigos!


On 11/28/06, cremes.devlist at mac.com <cremes.devlist at mac.com> wrote:
> On Nov 28, 2006, at 11:40 AM, Rogelio J. Samour wrote:
> > I have an Apache 2.2.3 (mod_proxy_balancer) frontend server that does
> > not have mongrel installed. It does proxy requests to several other
> > mongrel-only servers (each running 2 mongrel processes). Each mongrel
> > node has the same rails code-base and it's working perfectly.
> >
> > However, my question is when I add an upload file form... where is it
> > going to physically put that file? I mean since it's hitting either
> > one
> > node or the other, so how does mongrel deal with that? and how or
> > where
> > do I tell it to accept large files (100mb+) ?
> >
> > I have read on having an upload-only mongrel process, but again how
> > will
> > all the other mongrels know to post the file to it or to a specific
> > folder somewhere? Direction on this would be greatly appreciated!
> >
> > Thanks for your help on this. I searched the forum and didn't find
> > anything specifically dealing with this. I have also checked the
> > mongrel
> > docs and most of the setups talk about mongrel_upload_progress plugin
> > and/or the mongrel_cluster setup...(I may have missed something :-/)
> I'm starting work on a way for Mongrel to better handle really large
> file uploads (20+ MB).
> In the meantime, it's still pretty easy to setup a dedicated mongrel
> instance for file uploads.
> Assuming you are using mod_proxy_balancer, you first need to setup an
> exception for it.
> For example, the balancer setup lines look like this:
> ProxyPass / balancer://mongrel_cluster/
> ProxyPassReverse / balancer://mongrel_cluster
> Put an exception line before the first call to ProxyPass like so:
> ProxyPass /uploads ! # proxy will not rewrite if it contains this URI
> Then, further down in your Apache configuration file, put in a
> rewrite rule to send the connection to the mongrel dedicated to uploads:
> RewriteEngine On
> RewriteCond %{REQUEST_URI} ^/uploads.*
> RewriteRule .*             http://example.com:some_port%
> (That RewriteRule is untested but should work.) There are probably
> other ways to skin this particular cat.
> cr
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