NAME

Mojo::Server::Hypnotoad - ALL GLORY TO THE HYPNOTOAD!

SYNOPSIS

  use Mojo::Server::Hypnotoad;

  my $toad = Mojo::Server::Hypnotoad->new;
  $toad->run('./myapp.pl', './hypnotoad.conf');

DESCRIPTION

Mojo::Server::Hypnotoad is a full featured UNIX optimized preforking non-blocking I/O HTTP 1.1 and WebSocket server built around the very well tested and reliable Mojo::Server::Daemon with IPv6, TLS, Bonjour, libev and hot deployment support that just works.

To start applications with it you can use the hypnotoad script.

  $ hypnotoad myapp.pl
  Server available at http://127.0.0.1:8080.

You can run the exact same command again for automatic hot deployment.

  $ hypnotoad myapp.pl
  Starting hot deployment for Hypnotoad server 31841.

For Mojolicious and Mojolicious::Lite applications it will default to production mode.

Optional modules EV, IO::Socket::IP, IO::Socket::SSL and Net::Rendezvous::Publish are supported transparently and used if installed.

See Mojolicious::Guides::Cookbook for deployment recipes.

SIGNALS

You can control hypnotoad at runtime with signals.

Manager

INT, TERM

Shutdown server immediately.

QUIT

Shutdown server gracefully.

TTIN

Increase worker pool by one.

TTOU

Decrease worker pool by one.

USR2

Attempt zero downtime software upgrade (hot deployment) without losing any incoming connections.

  Manager (old)
  |- Worker [1]
  |- Worker [2]
  |- Worker [3]
  |- Worker [4]
  `- Manager
     |- Worker [1]
     |- Worker [2]
     |- Worker [3]
     `- Worker [4]

The new manager will automatically send a QUIT signal to the old manager and take over serving requests after starting up successfully.

Worker

INT, TERM

Stop worker immediately.

QUIT

Stop worker gracefully.

CONFIGURATION

Hypnotoad configuration files are normal Perl scripts returning a hash.

  # hypnotoad.conf
  {listen => ['http://*:3000', 'http://*:4000'], workers => 10};

The following parameters are currently available:

accepts

  accepts => 100

Maximum number of connections a worker is allowed to accept before stopping gracefully, defaults to 1000. Setting the value to 0 will allow workers to accept new connections infinitely.

backlog

  backlog => 128

Listen backlog size, defaults to SOMAXCONN.

clients

  clients => 100

Maximum number of parallel client connections per worker process, defaults to 1000.

graceful_timeout

  graceful_timeout => 15

Time in seconds a graceful worker stop may take before being forced, defaults to 30.

group

  group => 'staff'

Group name for worker processes.

heartbeat_interval

  heartbeat_interval => 3

Heartbeat interval in seconds, defaults to 5.

heartbeat_timeout

  heartbeat_timeout => 2

Time in seconds before a worker without a heartbeat will be stopped, defaults to 5.

keep_alive_requests

  keep_alive_requests => 50

Number of keep alive requests per connection, defaults to 25.

keep_alive_timeout

  keep_alive_timeout => 10

Maximum amount of time in seconds a connection can be inactive before being dropped, defaults to 15.

listen

  listen => ['http://*:80']

List of one or more locations to listen on, defaults to http://*:8080. See also "listen" in Mojo::Server::Daemon for more examples.

lock_file

  lock_file => '/tmp/hypnotoad.lock'

Full path to accept mutex lock file, defaults to a random temporary file.

pid_file

  pid_file => '/var/run/hypnotoad.pid'

Full path to PID file, defaults to hypnotoad.pid in the same directory as the application.

proxy

  proxy => 1

Activate reverse proxy support, defaults to the value of the MOJO_REVERSE_PROXY environment variable.

upgrade_timeout

  upgrade_timeout => 30

Time in seconds a zero downtime software upgrade may take before being aborted, defaults to 60.

user

  user => 'sri'

Username for worker processes.

websocket_timeout

  websocket_timeout => 150

Maximum amount of time in seconds a WebSocket connection can be inactive before being dropped, defaults to 300.

workers

  workers => 10

Number of worker processes, defaults to 4. A good rule of thumb is two worker processes per cpu core.

METHODS

Mojo::Server::Hypnotoad inherits all methods from Mojo::Base and implements the following new ones.

run

  $toad->run('script/myapp', 'hypnotoad.conf');

Start server.

DEBUGGING

You can set the HYPNOTOAD_DEBUG environment variable to get some advanced diagnostics information printed to STDERR.

  HYPNOTOAD_DEBUG=1

SEE ALSO

Mojolicious, Mojolicious::Guides, http://mojolicio.us.

cpanm Mojolicious

perl -MCPAN -e shell
install Mojolicious