Patroni 1.0 was released in 2016, i.e ~10 years ago. https://github.com/patroni/patroni. - Source: Hacker News / 3 months ago

PG's internal wal-level replication? Primary to a read-replica, and then switch the read to become the primary. You'll have a bit of downtime while you stop connections on the original server, switch the new server to primary, and update your app config to connect to the new server. I believe that's a pretty standard way to provide "HA" postgres. (We use Patroni for our HA setup) - Source: Hacker News / over 1 year ago

Do you need HA, or do you want to minimize downtime? At work we have something like an "error budget", were we accept downtime but try to minimize it. As such we have two nodes with one floating ip and a shared disk. The switch over takes as long as stopping the database on the first node, starting up the database on the second one and switching over the ip. Stuff like kernel updates takes us <1 minute of... - Source: Hacker News / almost 2 years ago

> I think etcd is basically a k8s only project now I hate etcd with the best of them, but etcd is used in a lot more places than just kubernetes: https://github.com/apache/apisix/blob/master/docs/en/latest/FAQ.md#why-does-apache-apisix-use-etcd-for-the-configuration-center, https://github.com/zalando/patroni#patroni-a-template-for-postgresql-ha-with-zookeeper-etcd-or-consul (this one shows up on HN quite a... - Source: Hacker News / over 2 years ago

We have been using stolon + consul for years without issue in our swarm environments. It may also be possible with patroni. Source: about 3 years ago

At StackGres [1] we find Timescale to be one of the most used extensions. Timescale is quite a successful project! StackGres is actually the first solution recommended by Timescale for self-hosting with Kubernetes operators [2]. So if you are into Kubernetes (or if not, consider it, using something like K3s [3] is quite straightforward and lightweight on resources), this is probably a great option to self-host... - Source: Hacker News / 3 months ago

* Latency. Yes, yes, yes, they add "microseconds" vs "milliseconds for queries", and that's true, but just part of the story. There's an extra hop. There's two extra sets of TCP layers being traversed. If the hop is local (say a sidecar, as we do in StackGres) it adds complexity in its deployment and management (something we solved by automation, but was an extra problem to solve) and consumes resources. If it's a... - Source: Hacker News / 7 months ago

This is conceptually similar to what we did for Postgres extensions at the StackGres [1] project. I gave a talk at a Kubecon about it [2]. However, this scheme is not perfect. Some Kubernetes security solutions enforce immutable containers, and once the agent pulls any additional file into the container, it will be flagged. It's also harder to reason about the security of the image (think CVEs, etc), given that... - Source: Hacker News / about 1 year ago

I applaud the decision to use AGPL-3.0. For me, it's a license that provides forward guarantees to the Community: no proprietary forks can happen, so any fork will be an OSS fork from which the upstream project may benefit too, which benefits all users. That's the reason we chose this license for StackGres [1], another project in the Postgres space. [1]: https://stackgres.io. - Source: Hacker News / over 2 years ago

This is good and interesting recipe to get Keycloak and Postgres on Kubernetes. There is an important improvement, though: the Postgres deployed here is not production ready (high availability, backups, monitoring, etc). We run Keycloak on StackGres [1] which gives us production-ready Postgres setup (disclaimer: it's dogfooding). Happy to share the YAML manifests used to deploy Keycloak with StackGres. Maybe we... - Source: Hacker News / over 3 years ago