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Man Pages


Manual Reference Pages  -  START_SERVER (1)

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NAME

start_server - a superdaemon for hot-deploying server programs

CONTENTS

SYNOPSIS



  start_server [options] -- server-prog server-arg1 server-arg2 ...

  # start Plack using Starlet listening at TCP port 8000
  start_server --port=8000 -- plackup -s Starlet --max-workers=100 index.psgi



DESCRIPTION

This script is a frontend of Server::Starter. For more information please refer to the documentation of the module.

OPTIONS

    --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.

    --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. It is intended for use with 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

AUTHOR

Kazuho Oku

SEE ALSO

Server::Starter

LICENSE

This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself.
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perl v5.20.3 START_SERVER (1) 2016-03-17

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