Episode 37 dives into a boring-yet-catastrophic Linux failure: file descriptor limits. Lucas walks through the exact moment a Node.js microservice hit the default 1024 soft limit, stalled a payment pipeline, and cost a fintech startup six figures in a single afternoon. Luna brings data on why ulimit defaults haven't changed in 30 years despite modern workloads. They explore kernel internals, the tension between security and throughput, and practical fixes (systemd limits, containerized overrides, BPF monitoring). A concrete look at a silent killer engineers ignore until PagerDuty lights up.

#Linux #FileDescriptors #Production #ServerOps #SystemAdministration #NodeJS #Performance #Ulimit #Systemd #BPF #Fintech #Startup #Containers #Kernel #Reliability #Technology #FexingoBusiness #BusinessPodcast

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