Project | Resque::UniqueInQueue |
---|---|
gem name | resque-unique_in_queue |
license | |
download rank | |
version | |
dependencies | |
continuous integration | |
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homepage | on Github.com, on Railsbling.com |
documentation | on RDoc.info |
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Resque::UniqueInQueue is a resque plugin to add unique jobs to resque.
It is a re-write of resque_solo, which is a fork of resque-loner.
It requires resque 1.25 and works with ruby 2.0 and later.
It removes the dependency on Resque::Helpers
, which is deprecated for resque 2.0.
Add the gem to your Gemfile:
gem 'resque-unique_in_queue'
resque-unique_in_queue
utilizes one class instance variables that can be set
in your Jobs, in addition to the standard @queue
. Here it is, with its
default values:
@unique_in_queue_key_base = 'r-uiq'.freeze
The last one, in normal circumstances, shouldn't be set as different per class, or uniqueness cleanup becomes more difficult.
It should be set only once, globally:
Resque::UniqueInQueue.configuration.unique_in_queue_key_base = 'my-custom'
class UpdateCat
include Resque::Plugins::UniqueInQueue
@queue = :cats
def self.perform(cat_id)
# do something
end
end
If you attempt to queue a unique job multiple times, it is ignored:
Resque.enqueue UpdateCat, 1
=> true
Resque.enqueue UpdateCat, 1
=> nil
Resque.enqueue UpdateCat, 1
=> nil
Resque.size :cats
=> 1
Resque.enqueued? UpdateCat, 1
=> true
Resque.enqueued_in? :dogs, UpdateCat, 1
=> false
Preventing jobs with matching signatures from being queued, and they never get dequeued because there is no actual corresponding job to dequeue.
How to deal?
Option: Rampage
# Delete *all* queued jobs in the queue, and
# delete *all* unqueness keys for the queue.
Redis.remove_queue('queue_name')
Option: Butterfly
# Delete *no* queued jobs at all, and
# delete *all* unqueness keys for the queue (might then allow duplicates).
Resque::UniqueInQueue::Queue.cleanup('queue_name')
Bug reports and pull requests are welcome on GitHub at https://github.com/pboling/resque-unique_in_queue. This project is intended to be a safe, welcoming space for collaboration, and contributors are expected to adhere to the Contributor Covenant code of conduct.
- Fork it
- Create your feature branch (
git checkout -b my-new-feature
) - Commit your changes (
git commit -am 'Added some feature'
) - Push to the branch (
git push origin my-new-feature
) - Create new Pull Request
Everyone interacting in the Resque::Plugins::UniqueInQueue project’s codebases, issue trackers, chat rooms and mailing lists is expected to follow the code of conduct.
This library aims to adhere to Semantic Versioning 2.0.0. Violations of this scheme should be reported as bugs. Specifically, if a minor or patch version is released that breaks backward compatibility, a new version should be immediately released that restores compatibility. Breaking changes to the public API will only be introduced with new major versions.
As a result of this policy, you can (and should) specify a dependency on this gem using the Pessimistic Version Constraint with two digits of precision.
For example:
spec.add_dependency 'resque-unique_in_queue', '~> 1.0'
- Copyright (c) 2012 Jonathan R. Wallace
- Copyright (c) 2017 - 2018 Peter H. Boling of Rails Bling