Cache Failover Gem

Installation

Gemfile

  gem 'cache_failover'

You will need at least 2 cache stores for failover capability.

  gem 'solid_cache' #  optional, but you will need at least 2 cache stores
  gem 'redis' # optional, but you will need at least 2 cache stores
  gem 'hiredis' # optional, only for redis
  gem 'dalli' # optional, but you will need at least 2 cache stores (WIP)
  gem 'cache_failover'

Configuration

Configure your cache_store normally, but use CacheFailover::Store with one argument, an array of hashes with the keys store and options in the order you would like to failover. Example is shown below:

config.cache_store = CacheFailover::Store.new(
  [
    {
      store: ActiveSupport::Cache::MemCacheStore.new(CONFIG[:MEMCACHED_SERVERS], {}),
      options: {}
    },
    {
      store: ActiveSupport::Cache::RedisCacheStore.new(
        url: CONFIG[:REDIS_URL],
        password: CONFIG[:REDIS_PASSWORD],
      ),
      options: {}
    },
    {
      store: SolidCache::Store.new(),
      options: {
        expiry_method: :job
      }
    }
  ]
)

WIP

• Memory Cache Support
• File Cache support
• More options
• Tests