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Mojolicious-1.48
River stage four • 987 direct dependents • 1105 total dependents
/ Mojo::Server::Hypnotoad

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 async io HTTP 1.1 and WebSocket server built around the very well tested and reliable Mojo::Server::Daemon with IPv6, TLS, Bonjour, epoll, kqueue and hot deployment support that just works.

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

% hypnotoad myapp.pl

Optional modules IO::KQueue, IO::Epoll, 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 => 5

Time in seconds before a worker without a heartbeat will be stopped, defaults to 2.

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 5.

listen

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

List of ports and files to listen on, defaults to http://*:8080.

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 MOJO_REVERSE_PROXY.

upgrade_timeout

upgrade_timeout => 15

Time in seconds a zero downtime software upgrade may take before being aborted, defaults to 30.

user

user => 'sri'

User name 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.