When talking to customers, sometimes I get the question: How should PostgreSQL installations deal with huge pages and large memory allocations? In particular, experienced Oracle DBA’s are interested in the details behind PostgreSQL and Huge Pages on Linux, so I’ll try to explain it in a bit more detail in the following blog post. What […]

Patroni is a cluster manager used to customize and automate deployment and maintenance of PostgreSQL HA (High Availability) clusters. It uses distributed configuration stores like etcd, Consul, ZooKeeper or Kubernetes for maximum accessibility. In this tutorial, we will be using a single local etcd instance and two local Patroni instances on a single host instead […]

(This article and the extension pg_cgroups was written for cgroups v1. The extension won’t work with cgroups v2, but the rest is still useful information.) In another blog post, I described how Linux control groups work and how they are useful for PostgreSQL. Here I will present my little PostgreSQL plugin pg_cgroups which makes this […]

Are you running PostgreSQL databases or plan to do so? Have you thought about disaster recovery? What happens if your database crashes or – more likely – the (virtual) server it runs on stops working? The best option is probably a copy of your database, that is able to take over operations, as soon as […]