Plack::Loader::Delayed - Delay the loading of .psgi until the first run
plackup -s Starlet -L Delayed myapp.psgi
This loader delays the compilation of specified PSGI application until the first request time. This prevents bad things from happening with preforking web servers like Starlet, when your application manipulates resources such as sockets or database connections in the master startup process and then shared by children.
You can combine this loader with
-M command line option, like:
plackup -s Starlet -MCatalyst -L Delayed myapp.psgi
loads the module Catalyst in the master process for the better process management with copy-on-write, however the application
myapp.psgi is loaded per children.
Web server developers can make use of
psgi_app_builder attribute callback set in Plack::Handler, to load the application earlier than the first request time.