Category Archives: performance

HAProxy, high mysql request rate and TCP source port exhaustion

Synopsys At Exceliance, 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 issues. … Continue reading

Posted in HAProxy, optimization, performance | Tagged , , , , | 1 Comment

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 Exceliance memo. It’s a must have document when you have to analyze … Continue reading

Posted in HAProxy, layer7, performance | Tagged , , , , , , | 2 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 Exceliance worked hard on it (mainly David Du Colombier and … Continue reading

Posted in HAProxy, optimization, performance | Tagged , , , | 6 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

Posted in Aloha, benchmark, optimization, performance | Tagged , , , | Leave a comment