When you’re dealing with memory leaks, it’s super important to find the source quickly because these issues can really mess things up. As your app handles more requests over time, memory keeps piling…

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AT&T Israel

We identified and fixed a memory leak in a Nest.js application running on Kubernetes, which was caused by open handles not being properly closed during proxy requests to Grafana. Using Prometheus and Grafana for monitoring, along with custom modifications to the wtf-node dependency, we pinpointed the issue and adjusted the middleware to prevent the memory leak. Key steps include integrating prom-client with Grafana and using wtf-node to diagnose active handle issues.

Memory Leak Profiling and Pinpointing for Node.js

Dual Role of Nest.js Server in Authorizing Access to Internal Grafana Dashboards

Pinpointing and isolating the memory leak cause