Category Archives: performance

Web application name to backend mapping in HAProxy

Synopsis Let’s take a web application platform where many HTTP Host header points to. Of course, this platform hosts many backends and HAProxy is used to perform content switching based on the Host header to route HTTP traffic to each … Continue reading

Posted in Aloha, architecture, HAPEE, HAProxy, layer7, optimization, performance | Tagged , , , , , , , , | Leave a comment

HAProxy, high mysql request rate and TCP source port exhaustion

Synopsys At HAProxy Technologies, we do provide professional services around HAPRoxy: this includes HAProxy itself, of course, but as well the underlying OS tuning, advice and recommendation about the architecture and sometimes we can also help customers troubleshooting application layer … Continue reading

Posted in HAProxy, optimization, performance | Tagged , , , , | 3 Comments

HAProxy log customization

Synopsis One of the strength of HAProxy is its logging system. It is very verbose and provides many information. HAProxy HTTP log line is briefly explained in an HAProxy Technologies memo. It’s a must have document when you have to … Continue reading

Posted in HAProxy, layer7, performance | Tagged , , , , , , | 3 Comments

HAProxy and gzip compression

Synopsis Compression is a Technic to reduce object size to reduce delivery delay for objects over HTTP protocol. Until now, HAProxy did not include such feature. But the guys at HAProxy Technologies worked hard on it (mainly David Du Colombier … Continue reading

Posted in HAProxy, optimization, performance | Tagged , , , | 9 Comments

Application Delivery Controller and ecommerce websites

Synopsis Today, almost any ecommerce website uses a load-balancer or an application delivery controller in front of it, in order to improve its availability and reliability. In today’s article, I’ll explain how we can take advantage of ADCs’ layer 7 … Continue reading

Posted in Aloha, architecture, HAProxy, layer7, performance | Tagged , , , , , | 1 Comment

Quand le marketing dépense des sous qui ne vont pas à l’innovation

Pas facile le load-balancing ! J’ai d’ordinaire un très grand respect pour nos concurrents, que je qualifie plutôt de confrères et qu’il m’est même déjà arrivé d’aider en privé pour au moins deux d’entre eux. Etant à l’origine du répartiteur … Continue reading

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HAProxy, Varnish and the single hostname website

As explained in a previous article, HAProxy and Varnish are two great OpenSource software which aim to improve performance, resilience and scalability of web applications. We saw also that these two softwares are not competitors. Instead of that, they can … Continue reading

Posted in Aloha, architecture, HAProxy, performance | Tagged , , , , , , , , , , | 32 Comments