HAProxy Community Edition is a free, open source reverse-proxy offering high availability, load balancing, and proxying for TCP and HTTP-based applications. It is presented as suited for very high traffic web sites.
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Kemp LoadMaster
Score 8.9 out of 10
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LoadMaster from Kemp Technologies in New York is an application delivery controller.
It prevents a single server failure from being a downtime event by adding redundancy to every layer of your architecture. A load balancer facilitates redundancy for the backend layer (web/app servers), but for a true high availability setup, you need to have redundant load balancers as well. So it is well suited for all production related servers and less suited for individual servers that do not require redundancy.
Loadmaster is very powerful and flexible load balancer. Variety of options allows to create a complex network of rules and routes. During our website rollout Loadmaster allowed us to run multiple generations of the website simultaneously and seamlessly by doing the content switching on the fly. Powerful API allows easy integration into any development lifecycle.
My understanding is a lack of support for UDP traffic
One mistake in the haproxy.cfg prevents the entire thing from starting rather than only affecting the part of the config file that may have a typo of some other syntax problem.
Complexity. You really need. highly skilled IT team to manage this device. This is not a solution or appliance for SME's - medium or large enterprises only!
Bugs, during 2015-2016 we suffered from a. number of bugs that caused downtime that would not have occurred without the Kemp LM. This is especially annoying given that it was purchased to reduce downtime! During 2017 stability improved.
Costs. This is a high cost solution with high ongoing support fees. Not for those who are very cost conscious
It is very easy to use. I was able to find a lot of documents for it on the internet. Very good community support. There are lots of examples available to try. We mostly use a command-line user interface to interact with it. The CLI is also super easy to use and very easy to interact with
Kemp makes it very easy to setup, configure and manage the LoadMaster without needing a lot of help from their engineers. The interface is very easy to understand and intuitive to use. We like how it is not complicated - I can easily have one of my techs login and they can figure out how to setup/configure virtual services for load balancing without needing a manual or tech support.
We haven't used customer support. We mostly used the community version. We build a multi-node HAProxy cluster with HA to the proxy itself using opensource plugins available. With the support available on the internet and the documents available we don't need to use much customer support.
Support has been easy to deal with; I have only need[ed] to contact them a few times during setup. Once its been in place and operational, we have not need[ed] to mess with the system [which] is a huge advantage. I like system[s] that do not break and require constant attention in a production environment.
We chose HA Proxy because it is cheaper than a hardware balancer, it is an open-source solution with a large community behind it and with constant updates. It also allows custom scripts according to needs.HA Proxy is a solution used in many internet sites like GitHub, Reddit, Twitter, and Tuenti.
The Kemp LoadMaster outshined both of our other evaluated products, mainly in speed of setup, features available, and overall cost of ownership. In the case of the Azure LB it wasn't going to work well for our on Premise servers. The Barracuda was unreliable and difficult to bring online with our needed applications. With the ability to import pre-configured templates into the Kemp load balancer, we were able to have it running within the first day of ownership.
Significantly lower investment vs competitors. In the case of F5s we have Virtual Editions so we're paying for the hardware to run it on top of the several thousand dollar licenses that are required for each pair and we currently have a pair of F5s per client so there's a huge potential for cost savings there.
Requires our network engineers to learn a new skill or our Systems engineers to take on the responsibility of managing the load balancers. It's not a huge difference either way, but it does impact the way we have done business in the past.
We used Kemp LoadMaster for many projects. For a lot of customers, load balancers were too expensive or too complicated before we introduced Kemp products.
It's not a overly complicated product, so we were able to train many engineers on it and have them get a certification.
