chef

https://github.com/opscode/chef

Ruby

A systems integration framework, built to bring the benefits of configuration management to your entire infrastructure.

Chef::ChefFS::Parallelizer::ParallelEnumerable#initialize

options:
:ordered [true|false] - whether the output should stay in the same order
  as the input (even though it may not actually be processed in that
  order). Default: true
:stop_on_exception [true|false] - if true, when an exception occurs in either
  input or output, we wait for any outstanding processing to complete,
  but will not process any new inputs. Default: false
:main_thread_processing [true|false] - whether the main thread pulling
  on each() is allowed to process inputs. Default: true
  NOTE: If you set this to false, parallelizer.kill will stop each()
  in its tracks, so you need to know for sure that won't happen.

Source | Google | Stack overflow

Edit

git clone [email protected]:opscode/chef.git

cd chef

open lib/chef/chef_fs/parallelizer/parallel_enumerable.rb

Contribute

# Make a new branch

git checkout -b -your-name--update-docs-Chef--ChefFS--Parallelizer--ParallelEnumerable-initialize-for-pr

# Commit to git

git add lib/chef/chef_fs/parallelizer/parallel_enumerable.rbgit commit -m "better docs for Chef::ChefFS::Parallelizer::ParallelEnumerable#initialize"

# Open pull request

gem install hub # on a mac you can `brew install hub`

hub fork

git push <your name> -your-name--update-docs-Chef--ChefFS--Parallelizer--ParallelEnumerable-initialize-for-pr

hub pull-request

# Celebrate!