sneak f244d9c7e0 Add per-host connection limits for upstream fetching ...

- Add upstream_connections_per_host config option (default: 20)
- Implement per-host semaphores to limit concurrent connections
- Semaphore released when response body is closed
- Prevents overwhelming origin servers with parallel requests

2026-01-08 05:19:20 -08:00

5.2 KiB

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