Herd – A Go sidecar to stop stateful processes Puppeteer/LLMs from OOM
Hey HN. I'm an engineering student at Waterloo building stateful AI agents, and I kept hitting the same wall: whenever my Python scripts crashed or dropped a connection, the underlying Puppeteer or Ollama processes would just sit there orphaned, eating RAM until the node OOM-killed itself. Standard load balancers break sticky sessions, and passive HTTP timeouts are too slow for cleanup. I couldn't find a good local process pool that actually cleaned up dead stateful sessions reliably, so I built Herd in Go. It uses a persistent stream (gRPC/Unix sockets) strictly as a dead-man's switch.…
Herd – A Go sidecar to stop stateful processes Puppeteer/LLMs from OOM launched on March 25, 2026 with 6 votes, #1,631 of 23,380 launches that month and more than 75% of that year's launches.
What it does
In the maker’s words, at launch
Hey HN. I'm an engineering student at Waterloo building stateful AI agents, and I kept hitting the same wall: whenever my Python scripts crashed or dropped a connection, the underlying Puppeteer or Ollama processes would just sit there orphaned, eating RAM until the node OOM-killed itself. Standard load balancers…
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