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Tag - tips

Tackling cache invalidation

It's a well-known fact that there are two difficult problems in computer science: naming things cache invalidation off by one error In this post, we're going to talk about the first one, cache invalidation. Not a long time ago, we got a support request from one of our client's developers with the following issue: We deployed a new version of...

Puppet – nearly a decade long friendship

Puppet – nearly a decade long friendship

Puppet is an open-core configuration management tool that significantly simplifies infrastructure management, especially when sysadmins have to deal with a large number of servers. Essentially, with its declarative language, Puppet allows sysadmins to describe the desired system state in high-level terms - e.g. users, installed packages, enabled services, configuration files, etc. Puppet then compares desired with...

forklift with boxes

Webshop migration

If you decided it’s time to invest in a new and improved infrastructure, you’re probably wondering how to do a webshop migration without knocking it offline. To help you with this process, we’ve described how we prepare for the webshop migration, what steps do we take to ensure everything goes smoothly and how we...

monitoring PHP

Monitoring PHP applications

When considering PHP applications monitoring, it’s essential to monitor not only the application itself but the services on which the application depends, as well as the infrastructure hosting the application. Detecting performance bottlenecks and debugging problems can otherwise be very tricky, and unexpected downtime may occur. Infrastructure monitoring Our advanced monitoring system is partially based on...