load balancer

This tag is associated with 2 posts

How Blocking-Lock Brownouts Can Escalate from Row-Level to Complete System Outages

Posted by Jeremy ⋅ January 19, 2026 ⋅ Leave a comment

This article is a shortened version. For the full writeup, go to https://github.com/ardentperf/pg-idle-test/tree/main/conn_exhaustion This test suite demonstrates a failure mode when application bugs which poison connection pools collide with PgBouncers that are missing peer config and positioned behind a load balancer. PgBouncer’s peering feature (added with v1.19 in 2023) should be configured if multiple PgBouncers are being used … Continue reading →

Testing loadBalancerSourceRanges with CloudNativePG on Azure Kubernetes

Posted by Jeremy ⋅ March 14, 2025 ⋅ Leave a comment

This option didn’t seem super widely documented from my initial searches online; it should be able to basically enforce layer 4 ingress/firewall rules at the individual service level. This is a quick test to check if it works. Steps were generated with ChatGPT, and mostly worked. It missed Azure provider registration, but I figure that … Continue reading →