Serve stale cached values while recomputing in the background to reduce tail latency.

Don't calculate the cached value twice at the same time. Use a backup of the data if the service is down.

Tag your cache keys smartly, you can expire by tags, count keys per tag and many more. based on Redis

Write-through ActiveRecord model caching that's right on the money

Another Background gem

Users can browse locations by country, city, and state and search locations by string or zip code. Administrators can manage locations and the services they offer.

Invisible image based tracing service with Redis backend

Simple feature flags based on a redis instance, a YAML config file and/or environment variables.

A Canonical URL cache using Redis

Instructure-maintained fork of delayed_job

Instead of making ActiveRecord calls to change a counter field, write them to capacitor. They'll get summarized in a redis hash, with a separate process batch-retrieving and writing to ActiveRecord. Being single-threaded, the writing process avoids row lock collisions, and absorbs traffic spikes by coalescing changes to the same row into one DB write.

Provides an easy way to register senders and receivers on a reliable Redis message queue.

Simple caTissue web application. See the home page for more information.

Associate different cached content with a tag, then expire by tag instead of key

Cashier gem plugin for invalidating cotendo full page cache

Simple structured object cache for ruby apps.

Catches ruby objects and caches them

Celerbrake provides robust, cloud-based exception tracking for any Ruby application. It lets you review errors, tie an error to an individual piece of code, and trace the cause back to recent changes. The Celerbrake dashboard provides easy categorization, searching, and prioritization of exceptions so that when errors occur, your team can quickly determine the root cause. This gem includes integrations with popular libraries and frameworks such as Rails, Sinatra, Resque, Sidekiq, Delayed Job, Shoryuken, ActiveJob and many more. It builds on the celerbrake-ruby notifier. Celerbrake began as a fork of the airbrake gem (https://github.com/airbrake/airbrake). It remains wire-compatible with the Airbrake v3 notice API, but reports to a Celerbrake instance you control rather than a third-party service.

Cloud Foundry auto-reconfiguration for Ruby

Cloud Foundry Runtime Library