spawner version 1.0.0
by Tim P.
http://codeforpeople.rubyforge.org/spawner
== DESCRIPTION
Spawn multiple child processes from Ruby and re-spawn those processes if
they die.
Spawner works on Mac OS X, Linux, Windows, Solaris, AIX – anywhere that
Ruby can run. It is useful for load testing other applications or just
keeping things alive. The Spawner class allows the number of child
processes to be changed dynamiclly so they can be brought up and down as
needed without restarting the spawner.
There is also a handy command line spawner app that’s really useful for
load testing services – spawn twenty clients and see how things hold
up.
== CHANGES
- 1 major enhancement
- Birthday!
== SYNOPSIS
Start three ‘foo’ processes and re-spawn immediately when one dies.
spawner = Spawner.new( ‘foo’, :spawn => 3 )
spawner.start
Start two ‘bar’ processes, pause for 10 seconds before re-spawning, and
capture output to a file.
spawner = Spawner.new( ‘bar’, :spawn = 2, :pause => 10, :stdout =>
‘stdout.txt’ )
spawner.start
Start 10 ‘baz’ process and kill off one process each minute until none
are left running.
spawner = Spawner.new( ‘baz’, :spawn => 10 )
spawner.start
until (spawner.spawn == 0)
sleep 60
spawner.spawn -= 1
end
== INSTALL:
sudo gem install spawner
Blessings,
TwP