prefork

Overview ¶

Command prefork demonstrates fh's OS-process prefork supervisor and doubles as the target binary for prefork_integration_test.go, which drives it with real SIGHUP/SIGTERM signals to prove zero-downtime rolling restarts. Configuration is via environment variables (rather than flags) so the test can control it precisely without argument-parsing overhead:

PREFORK_ADDR    listen address, default ":8091"
PREFORK_WORKERS worker process count, default 2