enabling SPDY

2013-01-15 Thread KT Walrus
I'd like to enable SPDY protocol using nginx. For this to work, do the frontend haproxy load balancers need to operate in tcp mode only? Or, can they use http mode to pass the SPDY requests to nginx?

Re: Backend Server Dynamic Configuration

2013-01-09 Thread KT Walrus
I think you might have misunderstood. By adding new server, I mean to add it as a server in HAProxy configuration. That is, the effect is to add the server line for the new server into the config file. This has nothing to do with launching the server in the cloud. It is the reverse of

Re: Backend Server Dynamic Configuration

2013-01-09 Thread KT Walrus
Willy, Thanks for your thoughts. I see that you have thought about these issues much more than I have. I just wanted to get you some feedback from a potential haproxy user. As for your point that I would need to edit the static configuration file incase of a complete restart of HAProxy, I

Re: Backend Server Dynamic Configuration

2013-01-09 Thread KT Walrus
Zachary, I guess I'll have to spend some time researching puppet (and/or chef). Thanks for the reference. Kevin On Jan 9, 2013, at 6:18 PM, Zachary Stern z...@enternewmedia.com wrote: Case in point for why puppet (and probably also chef) is perfect here. You can manage the config with

Re: dynamic upstream configuration

2013-01-05 Thread KT Walrus
, On Fri, Jan 04, 2013 at 03:44:40PM -0500, KT Walrus wrote: HAProxy also does all this stuff too (more or less). I plan on using HAProxy if NGINX doesn't support everything I need done. I have a preference to use as few software packages as possible so I keep the system as simple

Re: dynamic upstream configuration

2013-01-04 Thread KT Walrus
HAProxy also does all this stuff too (more or less). I plan on using HAProxy if NGINX doesn't support everything I need done. I have a preference to use as few software packages as possible so I keep the system as simple and maintainable as possible. Being able to eliminate HAProxy would be

Re: My Scalable Architecture using HAProxy

2013-01-03 Thread KT Walrus
if this wasn't the case, but I can't think of how to avoid this possibility. If I could, I could probably set MAXCONN to utilize 80% of the backend rather than a more conservative 50%, eventually, saving significant money in scale out. On Jan 3, 2013, at 2:56 AM, KT Walrus ke...@my.walr.us wrote: Thanks

Re: My Scalable Architecture using HAProxy

2013-01-03 Thread KT Walrus
to the surviving DC to minimize user perceived downtime (at DNSMadeEasy, they say that Failover can happen fully in under 5 minutes if TTLs are set low and DNS caching respects TTLs). Kevin On Jan 3, 2013, at 3:45 AM, Baptiste bed...@gmail.com wrote: On Thu, Jan 3, 2013 at 8:56 AM, KT Walrus ke

Re: My Scalable Architecture using HAProxy

2013-01-03 Thread KT Walrus
, KT Walrus ke...@my.walr.us wrote: One more tweak… I think the frontend LBs could be made to distribute the load so that requests go to the backend that has the sessionDB that will be used for the request rather than simple RR (by using cookies). This would keep most requests handled entirely

Re: My Scalable Architecture using HAProxy

2013-01-03 Thread KT Walrus
on the web servers, especially having two MySQL instances on *each* machine that will be serving PHP... Cheers, Pedro. On 3 Jan 2013, at 09:25, KT Walrus ke...@my.walr.us wrote: basically, you need persistence :) Well, I only need persistence to optimize traffic flow so the correct

Re: Cookie Persistence and Backend Recognition of Server Change

2013-01-03 Thread KT Walrus
Nevermind. I solved my problem by having the backend save the sessionDB server id in its SESSION_ID cookie. If the SESSION_ID cookie isn't the same server id as the localhost sessionDB, it knows a change has been made and it will first copy the session data out of the read-only slave

My Scalable Architecture using HAProxy

2013-01-02 Thread KT Walrus
I'm setting up a new website in the next month or two. Even though the traffic won't require a scalable HA website, I'm going to start out as if the website needs to support huge traffic so I can get some experience running such a website. I'd like any feedback on what I am thinking of doing…

Re: My Scalable Architecture using HAProxy

2013-01-02 Thread KT Walrus
can support both DNS Global Traffic Director (east coast and west coast IP Anycast) and DNS Failover (incase one datacenter goes offline). cheers On Thu, Jan 3, 2013 at 12:20 AM, KT Walrus ke...@my.walr.us wrote: I'm setting up a new website in the next month or two. Even though

Re: SPDY support?

2012-05-08 Thread KT Walrus
On May 8, 2012, at 2:01 PM, Willy Tarreau wrote: That's why with the guys from Squid, Varnish and Wingate we presented an concurrent proposal to the IETF one month ago : http://tools.ietf.org/html/draft-tarreau-httpbis-network-friendly-00 I hope that HTTP 2.0 requires