Fix Port Exhaustion for High Speed Scraper
Answer
Scenario
A web-scraper systemd service is running on this system, making continuous HTTP requests. The service has started experiencing connection failures - logs show HTTP status 000 errors, indicating connections cannot be established even though the network is functional and remote servers are accessible.
Task
Check the service status and logs to understand the failures, investigate the underlying cause, identify which system resource is exhausted, apply the appropriate kernel configuration change.
Once fix is applied you can test the connection with curl -o /dev/null -s -w "HTTP Status: %{http_code}\n" http://example.com
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