/ 
Mojolicious-2.96
River stage four • 995 direct dependents • 1115 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');

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. Individual features can also be disabled with the MOJO_NO_BONJOUR, MOJO_NO_IPV6 and MOJO_NO_TLS environment variables.

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

SIGNALS

Mojo::Server::Hypnotoad can be controlled at runtime with the following 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 (new)
   |- 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.

SETTINGS

Mojo::Server::Hypnotoad can be configured with the following settings, see "Hypnotoad" in Mojolicious::Guides::Cookbook for examples.

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 indefinitely.

backlog

backlog => 128

Listen backlog size, defaults to SOMAXCONN.

clients

clients => 100

Maximum number of parallel client connections per worker process, defaults to 1000. Note that depending on how much your application may block, you might want to decrease this value and increase workers instead for better performance.

graceful_timeout

graceful_timeout => 15

Maximum amount of 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

Maximum amount of time in seconds before a worker without a heartbeat will be stopped, defaults to 20.

inactivity_timeout

inactivity_timeout => 10

Maximum amount of time in seconds a connection can be inactive before getting closed, defaults to 15. Setting the value to 0 will allow connections to be inactive indefinitely.

keep_alive_requests

keep_alive_requests => 50

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

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 of accept mutex lock file prefix, to which the process id will be appended, defaults to a random temporary path.

lock_timeout

lock_timeout => 1

Maximum amount of time in seconds a worker may block when waiting for the accept mutex, defaults to 0.5.

pid_file

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

Full path to process id file, defaults to hypnotoad.pid in the same directory as the application. Note that this value can only be changed after the server has been stopped.

proxy

proxy => 1

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

upgrade_timeout

upgrade_timeout => 30

Maximum amount of time in seconds a zero downtime software upgrade may take before getting canceled, defaults to 60.

user

user => 'sri'

Username for worker processes.

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');

Run server for application.

SEE ALSO

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