On Saturday, January 17, 2015 11:09:27 PM Baptiste wrote:
> Hi Benjamin,
> 
> > 1) Logging performance data:
> >         A) How long before the page started putting out data? (implying
> >         that the
> > 
> > server side is done processing, though not necessarily)
> > 
> >         B) How long did the whole cycle take from initial connection to
> >         end of
> > 
> > download?
> 
> Turn on "option httplog", these information are available (read the
> relevant part of the documentation to find where).

I know I'm on the right track when I find that what I'm looking for is already 
in my face. I'd already turned on httplog but missed the Tq, Tw, Tc, Tr, Tt" 
part. Thanks! 

> > 2) Is there a way to anti-DDOS based on a cookie? (Really, we want to
> > filter based on user/login but that isn't actually part of the HTTP
> > session, that's determined by the cookie) W
> 
> You can get inspired by these two articles:
> http://blog.haproxy.com/2012/02/27/use-a-load-balancer-as-a-first-row-of-def
> ense-against-ddos/
> http://blog.haproxy.com/2013/04/26/wordpress-cms-brute-force-protection-wit
> h-haproxy/
> 
> It applies DDOS protection matching IPs. But HAProxy could perform the
> same on a cookie.

Nice, this is pretty much exactly what I was hoping for! 

> > 5) Is there a relatively simple way to get "true HA" with a redundant load
> > balancer? We have two identical machines side-by-side running EL6 and
> > haproxy, one is a disk dd of the other. In the past we used heartbeat
> > with limited success; pacemaker has been very problematic for us. For
> > now, we're managing manually.
> 
> We use keepalived a lot :)

.. as somebody else said. I'll be checking it out. This has been the smoothest 
product roll out I think I've seen in a production environment. 

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