0
votes
2answers
64 views

how to recover from a failed web server or reverse proxy

I have the following setup in my datacenter. Global LB --> HA proxy (2 instances on different servers via VRRP, performs HTTPS termination, acts as reverse proxy) ---> Nginx(2 instances on different ...
3
votes
1answer
540 views

Redis sentinel + HAProxy failover

I am looking to implement a HA redis implementation using Master-Slave redis servers. The web servers will connect to these through an HAProxy instance installed on each box. The situation is easy ...
1
vote
1answer
488 views

Configuring HAProxy with memcache with failover

I'm configuring a new set of servers for an existing Wordpress site, and it's been requested that memcache be available and made more resilient. The idea proposed is to have HAProxy send requests to ...
0
votes
1answer
121 views

What's the best way to run HAProxy backup as another HAProxy server and avoid cyclical issues

I have several geographical regions for my service deployment, say Region1, Region2, and Region3. Each region has a failover haproxy instance. Each haproxy is configured with several backend servers ...
3
votes
3answers
258 views

Haproxy on server failure event

I've got a setup with one HAproxy server (frontend) and multiple web-servers (backend). Is it possible to configure HAproxy so that a script is executed when a web-server gets down?
2
votes
3answers
1k views

DNS failover across multiple datacenters?

I've got a site that is starting to get a lot of traffic and just the other day, we had a network outage at the datacenter where our loadbalancer (haproxy) is hosted at. This worried me as despite all ...
0
votes
1answer
1k views

Loadbalancing JBoss with haproxy AND mod_jk

I've been tasked to explore ways of building a very fail-resistant configuration for a professional application developed for JBoss. I have a somewhat fixed hardware configuration (servers have ...
6
votes
1answer
3k views

Pacemaker Active/Active haproxy load balancing

I am using Haproxy to load balance replicated mysql master servers. I am also using Heartbeat and Pacemaker for Active/Active ip failover with two virtual ips on the two load balancers for web server ...
0
votes
1answer
347 views

Solid failover for IIS and ASP.NET MVC?

Our team is currently planning our next big project which looks to be an exciting one! We our product will be an ASP.NET MVC site which can either be deployed on a customers own server or they can ...
0
votes
2answers
1k views

haproxy failover with process monitoring?

I know some people are using keepalived and heartbeat for active/standby but what action is taken if the haproxy process were to die? What would be nice is if the virtual IP would switch servers if ...
4
votes
2answers
8k views

How to setup HAProxy with failover?

I understand that, to get failover on an HAProxy load balancing setup, you need two machines running HAproxy (and route it to several webserver instances). But in this case, say abcd.com, how do we ...
1
vote
3answers
4k views

Is it possible to make redundancy on HAProxy server?

I am going to use HAProxy as a load balancer that will balance requests on 3 application servers. But what if balancer server (HAProxy) fails at some point? I was thinking of cloning the first ...
2
votes
1answer
833 views

HAproxy + failover on same nodes as apache?

We're currently using HAproxy to load balance our image and application servers, but we haven't setup failover. We currently just have haproxy on one of the image boxes which then routes the requests ...
11
votes
2answers
7k views

LVS vs HAProxy, which should I choose?

I am looking for a solution to load balancing and failover strategy, mainly for big web applications. We have many services to be balanced, such as web, MySQL, and many other HTTP or TCP based ...
5
votes
3answers
2k views

High Availability for SSL Web Site

One of our web server clusters serves a moderate number of busy e-commerce applications. At present, each site lives on a specific web server and has a hot-spare copy mirrored to another web server ...