--port=(port|host:port|port=fd|host:port=fd)¶

TCP port to listen to (if omitted, will not bind to any ports)

If host is not specified, then the program will bind to the default address of IPv4 ("0.0.0.0"). Square brackets should be used to specify an IPv6 address (e.g. --port=[::1]:8080)

If fd is specified, then start_server allocates the socket at the given number.

The command binds to UDP ports if the port numbers are prefixed by "u" (e.g., --port=u443).

--path=path¶

path at where to listen using unix socket (optional)

--dir=path¶

working directory, start_server do chdir to before exec (optional)

--interval=seconds¶

minimum interval to respawn the server program (default: 1)

--signal-on-hup=SIGNAL¶

name of the signal to be sent to the server process when start_server receives a SIGHUP (default: SIGTERM). If you use this option, be sure to also use "--signal-on-term" below.

--signal-on-term=SIGNAL¶

name of the signal to be sent to the server process when start_server receives a SIGTERM (default: SIGTERM)

--pid-file=filename¶

if set, writes the process id of the start_server process to the file

--status-file=filename¶

if set, writes the status of the server process(es) to the file

--envdir=ENVDIR¶

directory that contains environment variables to the server processes and superdaemon. It is inspired by "envdir" in "daemontools". This can be overwritten by environment variable "ENVDIR".

--log-file=file¶

--log-file="| cmd args..."¶

if set, redirects STDOUT and STDERR to given file or command

--daemonize¶

deamonizes the server (by doing fork,setsid,fork). Must be used together with "--log-file".

--enable-auto-restart¶

enables automatic restart by time. This can be overwritten by environment variable "ENABLE_AUTO_RESTART".

--auto-restart-interval=seconds¶

automatic restart interval (default 360). It is used with "--enable-auto-restart" option. This can be overwritten by environment variable "AUTO_RESTART_INTERVAL".

--kill-old-delay=seconds¶

time to suspend to send a signal to the old worker. The default value is 5 when "--enable-auto-restart" is set, 0 otherwise. This can be overwritten by environment variable "KILL_OLD_DELAY".

--backlog=size¶

specifies a listen backlog parameter, whose default is SOMAXCONN (usually 128 on Linux). While SOMAXCONN is enough for most loads, large backlog is required for heavy loads.

--restart¶

this is a wrapper command that reads the pid of the start_server process from --pid-file, sends SIGHUP to the process and waits until the server(s) of the older generation(s) die by monitoring the contents of the --status-file

--stop¶

this is a wrapper command that reads the pid of the start_server process from --pid-file, sends SIGTERM to the process.

--help¶

prints this help

--version¶

prints the version number