httpchk failures

2015-04-13 Thread Benjamin Smith
We have 5 Apache servers behind haproxy and we're trying to enable use the httpchk option along with some performance monitoring. For some reason, haproxy keeps thinking that 3/5 apache servers are down even though it's obvious that haproxy is both asking the questions and the servers are

Re: tcp reset errors

2015-04-13 Thread Steve
Willy Tarreau w at 1wt.eu writes: Hi Franky, On Thu, Sep 11, 2014 at 01:08:09PM +0200, Franky Van Liedekerke wrote: On Thu, Sep 11, 2014 at 11:40 AM, Franky Van Liedekerke liedekef@... wrote: After doing tcpdump on both servers (no ldap errors anywhere in the ldap logs), I see

Re: Achieving Zero Downtime Restarts at Yelp

2015-04-13 Thread David Birdsong
Wow, this is a really informative blog post. Thanks for sharing! I'm curious, did you weight the costs of simply converting your proxies to run on one of the BSD's? As I understand it, their implementation of SO_REUSEPORT would mean zero downtime reloads just work as hoped-for/expected. On Mon,

Re: Achieving Zero Downtime Restarts at Yelp

2015-04-13 Thread Nicolas Grilly
Thanks for sharing this. This is a great and useful article!

Re: Achieving Zero Downtime Restarts at Yelp

2015-04-13 Thread Joseph Lynch
Hi David, On Mon, Apr 13, 2015 at 12:53 PM, David Birdsong david.birds...@gmail.com wrote: I'm curious, did you weight the costs of simply converting your proxies to run on one of the BSD's? As I understand it, their implementation of SO_REUSEPORT would mean zero downtime reloads just work as

Re: HA proxy - Need infromation

2015-04-13 Thread Igor Cicimov
On Tue, Apr 14, 2015 at 12:55 AM, Thibault Labrut thibault.lab...@enioka.com wrote: Hello, I currently installing HAProxy with keepalived to one of my clients. To facilitate the administration of this tool, I would like to know if you can advise me of administration web gui for HA proxy.

Achieving Zero Downtime Restarts at Yelp

2015-04-13 Thread Joseph Lynch
Hello, I published an article today on Yelp's engineering blog ( http://engineeringblog.yelp.com/2015/04/true-zero-downtime-haproxy-reloads.html) that shows a technique we use for low latency, zero downtime restarts of HAProxy. This solves the when I restart HAProxy some of my clients get RSTs

HAProxy 1.4.18 performance issue

2015-04-13 Thread Michał Ślizak
Hi, I'm experiencing latency problems while running HAProxy 1.4.18. Our backend servers reply to HAProxy almost instantly (~4ms), but some of those replies are sent to the clients more than 100ms later. We have approx. 50k sessions opened at any time, with a HTTP request coming in approximately

Re: HAProxy 1.4.18 performance issue

2015-04-13 Thread Michał Ślizak
On Mon, Apr 13, 2015 at 6:09 PM, Lukas Tribus luky...@hotmail.com wrote: On Mon, Apr 13, 2015 at 4:58 PM, Lukas Tribus luky...@hotmail.commailto:luky...@hotmail.com wrote: Hi, I'm experiencing latency problems while running HAProxy 1.4.18. Our backend servers reply to HAProxy almost

RE: HAProxy 1.4.18 performance issue

2015-04-13 Thread Lukas Tribus
On Mon, Apr 13, 2015 at 4:58 PM, Lukas Tribus  luky...@hotmail.commailto:luky...@hotmail.com wrote:  Hi,    I'm experiencing latency problems while running HAProxy 1.4.18.    Our backend servers reply to HAProxy almost instantly (~4ms), but some  of those replies are sent to the clients more

HA proxy - Need infromation

2015-04-13 Thread Thibault Labrut
Hello, I currently installing HAProxy with keepalived to one of my clients. To facilitate the administration of this tool, I would like to know if you can advise me of administration web gui for HA proxy. Thank you for your help. Best regards, -- Thibault Labrut enioka 24 galerie Saint-Marc

RE: HAProxy 1.4.18 performance issue

2015-04-13 Thread Lukas Tribus
Hi,    I'm experiencing latency problems while running HAProxy 1.4.18.    Our backend servers reply to HAProxy almost instantly (~4ms), but some  of those replies are sent to the clients more than 100ms later.    We have approx. 50k sessions opened at any time, with a HTTP request  coming in

Re: HAProxy 1.4.18 performance issue

2015-04-13 Thread Michał Ślizak
On Mon, Apr 13, 2015 at 4:58 PM, Lukas Tribus luky...@hotmail.com wrote: Hi, I'm experiencing latency problems while running HAProxy 1.4.18. Our backend servers reply to HAProxy almost instantly (~4ms), but some of those replies are sent to the clients more than 100ms later. We