[Catalyst] Progress bar

Fred Moyer fred at redhotpenguin.com
Wed Oct 24 18:06:59 GMT 2012

On Wed, Oct 24, 2012 at 9:59 AM, Bill Moseley <moseley at hank.org> wrote:
> On Wed, Oct 24, 2012 at 5:44 AM, Lorn <lorn at lornlab.org> wrote:
>> I'm not following the thread but, did you guys know about
>> http://wiki.nginx.org/HttpUploadProgressModule. ?
> PerlBal (as in this old post:
> http://lists.danga.com/pipermail/perlbal/2005-November/000138.html ) can do
> this as well.

I can vouch for the scalability of the Perlbal upload tracker. I used
it on taperfriendlymusic.org in front of a slashcode based mod_perl
app in 2006, and one box was able to handle 50 megabits of uploads
with around 10% cpu usage.

> I wonder about the topology.   We used to run with Perlbal (and heartbeat
> and IP failover) in front of a pool of web servers.   We now run with
> hardware load balancers in front of a pool of web servers.
> The load balancer does make it easy to adjust the pool -- as well as
> gracefully handle a web server dropping out of the pool.   I don't want to
> add yet another set of servers for an extra proxy layer.
> So, I'm currently thinking of running Nginx on each web server. (Keep-alive
> between the load balancer and Nginx, and no keep-alive between Nginx and
> Catalyst with maybe Starman.)
> Anyone see why this might be a bad (or good) approach?
> --
> Bill Moseley
> moseley at hank.org
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