Class: ActiveSupport::Cache::RedisCacheStore

Relationships & Source Files
Super Chains via Extension / Inclusion / Inheritance
Class Chain: self, `Store`
Instance Chain: self, `Strategy::LocalCache`, `Store`
Inherits:	ActiveSupport::Cache::Store `::Object` ActiveSupport::Cache::Store ActiveSupport::Cache::RedisCacheStore
Defined in:	activesupport/lib/active_support/cache/redis_cache_store.rb

Overview

Redis Cache Store

Deployment note: Take care to use a dedicated Redis cache rather than pointing this at a persistent Redis server (for example, one used as an Active Job queue). Redis won’t cope well with mixed usage patterns and it won’t expire cache entries by default.

Redis cache server setup guide: redis.io/topics/lru-cache

Supports vanilla Redis, hiredis, and Redis::Distributed.
Supports Memcached-like sharding across Redises with Redis::Distributed.
Fault tolerant. If the Redis server is unavailable, no exceptions are raised. Cache fetches are all misses and writes are dropped.
Local cache. Hot in-memory primary cache within block/middleware scope.
#read_multi and write_multi support for Redis mget/mset. Use Redis::Distributed 4.0.1+ for distributed mget support.
#delete_matched support for Redis KEYS globs.

Constant Summary

DEFAULT_ERROR_HANDLER =
# File 'activesupport/lib/active_support/cache/redis_cache_store.rb', line 45

#=> (method:, returning:, exception:) do
  if logger
    logger.error { "RedisCacheStore: #{method} failed, returned #{returning.inspect}: #{exception.class}: #{exception.message}" }
  end
  ActiveSupport.error_reporter&.report(
    exception,
    severity: :warning,
    source: "redis_cache_store.active_support",
  )
end

DEFAULT_REDIS_OPTIONS =
# File 'activesupport/lib/active_support/cache/redis_cache_store.rb', line 39

{
  connect_timeout:    1,
  read_timeout:       1,
  write_timeout:      1,
}

SCAN_BATCH_SIZE = private

The maximum number of entries to receive per SCAN call.

# File 'activesupport/lib/active_support/cache/redis_cache_store.rb', line 57
```
1000
```

`Store` - Inherited

DEFAULT_POOL_OPTIONS, MAX_KEY_SIZE

Class Attribute Summary

.supports_cache_versioning? ⇒ Boolean readonly

Advertise cache versioning support.

`Store` - Inherited

.logger, .raise_on_invalid_cache_expiration_time

Class Method Summary

.new(error_handler: DEFAULT_ERROR_HANDLER, **redis_options) ⇒ RedisCacheStore constructor

Creates a new Redis cache store.
.build_redis_client(**redis_options) private
.build_redis_distributed_client(urls:, **redis_options) private
.build_redis(redis: nil, url: nil, **redis_options) Internal use only

Factory method to create a new Redis instance.

`Store` - Inherited

.new	Creates a new cache.
.retrieve_pool_options

Instance Attribute Summary

#redis readonly
#supports_expire_nx? ⇒ Boolean readonly private

`Store` - Inherited

#logger,
#namespace	Get the current namespace.
#namespace=	Set the current namespace.
#options, #raise_on_invalid_cache_expiration_time,
#silence?	Alias for Store#silence.

Instance Method Summary

#cleanup(options = nil)

::ActiveSupport::Cache Store API implementation.
#clear(options = nil)

Clear the entire cache on all Redis servers.
#decrement(name, amount = 1, options = nil)

Decrement a cached integer value using the Redis decrby atomic operator.
#delete_matched(matcher, options = nil)

::ActiveSupport::Cache Store API implementation.
#increment(name, amount = 1, options = nil)

Increment a cached integer value using the Redis incrby atomic operator.
#read_multi(*names)

::ActiveSupport::Cache Store API implementation.
#stats

Get info from redis servers.
#change_counter(key, amount, options) private
#delete_entry(key, **options) private

Delete an entry from the cache.
#delete_multi_entries(entries, **_options) private

Deletes multiple entries in the cache.
#deserialize_entry(payload, raw: false) private
#failsafe(method, returning: nil) private
#instance_variables_to_inspect private
#pipeline_entries(entries, &block) private
#read_entry(key, **options) private

Store provider interface: Read an entry from the cache.
#read_multi_entries(names, **options) private
#read_serialized_entry(key, raw: false, **options) private
#serialize_entries(entries, **options) private
#serialize_entry(entry, raw: false, **options) private
#write_entry(key, entry, raw: false, **options) private

Write an entry to the cache.
#write_multi_entries(entries, **options) private

Nonstandard store provider API to write multiple values at once.
#write_serialized_entry(key, payload, raw: false, unless_exist: false, expires_in: nil, race_condition_ttl: nil, pipeline: nil, **options) private

`Strategy::LocalCache` - Included

#local_cache	The current local cache.
#middleware	Middleware class can be inserted as a `::Rack` handler to be local cache for the duration of request.
#new_local_cache	Set a new local cache.
#unset_local_cache	Unset the current local cache.
#with_local_cache	Use a local cache for the duration of block.
#bypass_local_cache, #delete_entry, #local_cache_key, #read_multi_entries, #read_serialized_entry, #use_temporary_local_cache, #write_cache_value, #write_serialized_entry, #cleanup, #clear, #decrement, #delete_matched, #fetch_multi, #increment

`Store` - Inherited

#cleanup	Cleans up the cache by removing expired entries.
#clear	Clears the entire cache.
#decrement	Decrements an integer value in the cache.
#delete	Deletes an entry in the cache.
#delete_matched	Deletes all entries with keys matching the pattern.
#delete_multi	Deletes multiple entries in the cache.
#exist?	Returns `true` if the cache contains an entry for the given key.
#fetch	Fetches data from the cache, using the given key.
#fetch_multi	Fetches data from the cache, using the given keys.
#increment	Increments an integer value in the cache.
#mute	Silences the logger within a block.
#read	Reads data from the cache, using the given key.
#read_counter	Reads a counter that was set by #increment / #decrement.
#read_multi	Reads multiple values at once from the cache.
#silence,
#silence!	Silences the logger.
#write	Writes the value to the cache with the key.
#write_counter	Writes a counter that can then be modified by #increment / #decrement.
#write_multi	`::ActiveSupport::Cache` Storage API to write multiple values at once.
#_instrument, #default_serializer,
#delete_entry	Deletes an entry from the cache implementation.
#delete_multi_entries	Deletes multiples entries in the cache implementation.
#deserialize_entry, #expand_and_namespace_key,
#expanded_key	Expands key to be a consistent string value.
#expanded_version, #get_entry_value, #handle_expired_entry, #handle_invalid_expires_in, #instrument, #instrument_multi,
#key_matcher	Adds the namespace defined in the options to a pattern designed to match keys.
#merged_options	Merges the default options with ones specific to a method call.
#namespace_key	Prefix the key with a namespace string:
#normalize_key	Expands, namespaces and truncates the cache key.
#normalize_options	Normalize aliased options to their canonical form.
#normalize_version,
#read_entry	Reads an entry from the cache implementation.
#read_multi_entries	Reads multiple entries from the cache implementation.
#save_block_result_to_cache, #serialize_entry, #truncate_key, #validate_options,
#write_entry	Writes an entry to the cache implementation.
#write_multi_entries	Writes multiple entries to the cache implementation.
#new_entry

Constructor Details

.new(error_handler: DEFAULT_ERROR_HANDLER, **redis_options) ⇒ `RedisCacheStore`

Creates a new Redis cache store.

There are a few ways to provide the Redis client used by the cache:

The :redis param can be:
- A Redis instance.
- A ConnectionPool instance wrapping a Redis instance.
- A block that returns a Redis instance.
The :url param can be:
- A string used to create a Redis instance.
- An array of strings used to create a Redis::Distributed instance.

If the final Redis instance is not already a ConnectionPool, it will be wrapped in one using Store::DEFAULT_POOL_OPTIONS. These options can be overridden with the :pool param, or the pool can be disabled with :pool: false.

Option  Class       Result
:redis  Object  ->  options[:redis]
:redis  Proc    ->  options[:redis].call
:url    String  ->  Redis.new(url: …)
:url    Array   ->  Redis::Distributed.new([{ url: … }, { url: … }, …])

No namespace is set by default. Provide one if the Redis cache server is shared with other apps: namespace: 'myapp-cache'.

Compression is enabled by default with a 1kB threshold, so cached values larger than 1kB are automatically compressed. Disable by passing compress: false or change the threshold by passing compress_threshold: 4.kilobytes.

No expiry is set on cache entries by default. Redis is expected to be configured with an eviction policy that automatically deletes least-recently or -frequently used keys when it reaches max memory. See redis.io/topics/lru-cache for cache server setup.

Race condition TTL is not set by default. This can be used to avoid “thundering herd” cache writes when hot cache entries are expired. See Store#fetch for more.

Setting skip_nil: true will not cache nil results:

cache.fetch('foo') { nil }
cache.fetch('bar', skip_nil: true) { nil }
cache.exist?('foo') # => true
cache.exist?('bar') # => false

[ GitHub ]

# File 'activesupport/lib/active_support/cache/redis_cache_store.rb', line 156


def initialize(error_handler: DEFAULT_ERROR_HANDLER, **redis_options)
  universal_options = redis_options.extract!(*UNIVERSAL_OPTIONS)
  redis = redis_options[:redis]

  already_pool = redis.instance_of?(::ConnectionPool) ||
                 (redis.respond_to?(:wrapped_pool) && redis.wrapped_pool.instance_of?(::ConnectionPool))

  if !already_pool && pool_options = self.class.send(:retrieve_pool_options, redis_options)
    @redis = ::ConnectionPool.new(**pool_options) { self.class.build_redis(**redis_options) }
  else
    @redis = self.class.build_redis(**redis_options)
  end

  @error_handler = error_handler

  super(universal_options)
end

Class Attribute Details

.supports_cache_versioning? ⇒ `Boolean` (readonly)

Advertise cache versioning support.

[ GitHub ]

# File 'activesupport/lib/active_support/cache/redis_cache_store.rb', line 61


def self.supports_cache_versioning?
  true
end

Class Method Details

.build_redis(redis: nil, url: nil, **redis_options)

This method is for internal use only.

Factory method to create a new Redis instance.

Handles four options: :redis block, :redis instance, single :url string, and multiple :url strings.

Option  Class       Result
:redis  Proc    ->  options[:redis].call
:redis  Object  ->  options[:redis]
:url    String  ->  Redis.new(url: …)
:url    Array   ->  Redis::Distributed.new([{ url: … }, { url: … }, …])

[ GitHub ]

# File 'activesupport/lib/active_support/cache/redis_cache_store.rb', line 79


def build_redis(redis: nil, url: nil, **redis_options) # :nodoc:
  urls = Array(url)

  if redis.is_a?(Proc)
    redis.call
  elsif redis
    redis
  elsif urls.size > 1
    build_redis_distributed_client(urls: urls, **redis_options)
  elsif urls.empty?
    build_redis_client(**redis_options)
  else
    build_redis_client(url: urls.first, **redis_options)
  end
end

.build_redis_client(**redis_options) (private)

[ GitHub ]

# File 'activesupport/lib/active_support/cache/redis_cache_store.rb', line 102


def build_redis_client(**redis_options)
  ::Redis.new(DEFAULT_REDIS_OPTIONS.merge(redis_options))
end

.build_redis_distributed_client(urls:, **redis_options) (private)

[ GitHub ]

# File 'activesupport/lib/active_support/cache/redis_cache_store.rb', line 96


def build_redis_distributed_client(urls:, **redis_options)
  ::Redis::Distributed.new([], DEFAULT_REDIS_OPTIONS.merge(redis_options)).tap do |dist|
    urls.each { |u| dist.add_node url: u }
  end
end

Instance Attribute Details

#redis (readonly)

[ GitHub ]

# File 'activesupport/lib/active_support/cache/redis_cache_store.rb', line 107


attr_reader :redis

#supports_expire_nx? ⇒ `Boolean` (readonly, private)

[ GitHub ]

# File 'activesupport/lib/active_support/cache/redis_cache_store.rb', line 486


def supports_expire_nx?
  return @supports_expire_nx if defined?(@supports_expire_nx)

  redis_versions = redis.then { |c| Array.wrap(c.info("server")).pluck("redis_version") }
  @supports_expire_nx = redis_versions.all? { |v| Gem::Version.new(v) >= Gem::Version.new("7.0.0") }
end

Instance Method Details

#change_counter(key, amount, options) (private)

[ GitHub ]

# File 'activesupport/lib/active_support/cache/redis_cache_store.rb', line 459


def change_counter(key, amount, options)
  redis.then do |c|
    c = c.node_for(key) if c.is_a?(Redis::Distributed)

    expires_in = options[:expires_in]

    if expires_in
      if supports_expire_nx?
        count, _ = c.pipelined do |pipeline|
          pipeline.incrby(key, amount)
          pipeline.call(:expire, key, expires_in.to_i, "NX")
        end
      else
        count, ttl = c.pipelined do |pipeline|
          pipeline.incrby(key, amount)
          pipeline.ttl(key)
        end
        c.expire(key, expires_in.to_i) if ttl < 0
      end
    else
      count = c.incrby(key, amount)
    end

    count
  end
end

#cleanup(options = nil)

::ActiveSupport::Cache Store API implementation.

Removes expired entries. Handled natively by Redis least-recently-/ least-frequently-used expiry, so manual cleanup is not supported.

[ GitHub ]

# File 'activesupport/lib/active_support/cache/redis_cache_store.rb', line 300


def cleanup(options = nil)
  super
end

#clear(options = nil)

Clear the entire cache on all Redis servers. Safe to use on shared servers if the cache is namespaced.

Failsafe: Raises errors.

[ GitHub ]

# File 'activesupport/lib/active_support/cache/redis_cache_store.rb', line 308


def clear(options = nil)
  failsafe :clear do
    if namespace = merged_options(options)[:namespace]
      delete_matched "*", namespace: namespace
    else
      redis.then { |c| c.flushdb }
    end
  end
end

#decrement(name, amount = 1, options = nil)

Decrement a cached integer value using the Redis decrby atomic operator. Returns the updated value.

If the key is unset or has expired, it will be set to -amount:

cache.decrement("foo") # => -1

To set a specific value, call #write passing raw: true:

cache.write("baz", 5, raw: true)
cache.decrement("baz") # => 4

Decrementing a non-numeric value, or a value written without raw: true, will fail and return nil.

To read the value later, call #read_counter:

cache.decrement("baz") # => 3
cache.read_counter("baz") # 3

Failsafe: Raises errors.

[ GitHub ]

# File 'activesupport/lib/active_support/cache/redis_cache_store.rb', line 285


def decrement(name, amount = 1, options = nil)
  options = merged_options(options)
  key = normalize_key(name, options)

  instrument :decrement, key, amount: amount do
    failsafe :decrement do
      change_counter(key, -amount, options)
    end
  end
end

#delete_entry(key, **options) (private)

Delete an entry from the cache.

[ GitHub ]

# File 'activesupport/lib/active_support/cache/redis_cache_store.rb', line 407


def delete_entry(key, **options)
  failsafe :delete_entry, returning: false do
    redis.then { |c| c.unlink(key) == 1 }
  end
end

#delete_matched(matcher, options = nil)

::ActiveSupport::Cache Store API implementation.

Supports Redis KEYS glob patterns:

h?llo matches hello, hallo and hxllo
h*llo matches hllo and heeeello
h[ae]llo matches hello and hallo, but not hillo
h[^e]llo matches hallo, hbllo, ... but not hello
h[a-b]llo matches hallo and hbllo

Use \ to escape special characters if you want to match them verbatim.

See redis.io/commands/KEYS for more.

Failsafe: Raises errors.

[ GitHub ]

# File 'activesupport/lib/active_support/cache/redis_cache_store.rb', line 209


def delete_matched(matcher, options = nil)
  unless String === matcher
    raise ArgumentError, "Only Redis glob strings are supported: #{matcher.inspect}"
  end
  pattern = namespace_key(matcher, options)

  instrument :delete_matched, pattern do
    redis.then do |c|
      cursor = "0"
      # Fetch keys in batches using SCAN to avoid blocking the Redis server.
      nodes = c.respond_to?(:nodes) ? c.nodes : [c]

      nodes.each do |node|
        begin
          cursor, keys = node.scan(cursor, match: pattern, count: SCAN_BATCH_SIZE)
          node.unlink(*keys) unless keys.empty?
        end until cursor == "0"
      end
    end
  end
end

#delete_multi_entries(entries, **_options) (private)

Deletes multiple entries in the cache. Returns the number of entries deleted.

[ GitHub ]

# File 'activesupport/lib/active_support/cache/redis_cache_store.rb', line 414


def delete_multi_entries(entries, **_options)
  return 0 if entries.empty?

  failsafe :delete_multi_entries, returning: 0 do
    redis.then { |c| c.unlink(*entries) }
  end
end

#deserialize_entry(payload, raw: false) (private)

[ GitHub ]

# File 'activesupport/lib/active_support/cache/redis_cache_store.rb', line 437


def deserialize_entry(payload, raw: false, **)
  if raw && !payload.nil?
    Entry.new(payload)
  else
    super(payload)
  end
end

#failsafe(method, returning: nil) (private)

[ GitHub ]

# File 'activesupport/lib/active_support/cache/redis_cache_store.rb', line 493


def failsafe(method, returning: nil)
  yield
rescue ::Redis::BaseError, ConnectionPool::Error, ConnectionPool::TimeoutError => error
  @error_handler&.call(method: method, exception: error, returning: returning)
  returning
end

#increment(name, amount = 1, options = nil)

Increment a cached integer value using the Redis incrby atomic operator. Returns the updated value.

If the key is unset or has expired, it will be set to amount:

cache.increment("foo") # => 1
cache.increment("bar", 100) # => 100

To set a specific value, call #write passing raw: true:

cache.write("baz", 5, raw: true)
cache.increment("baz") # => 6

Incrementing a non-numeric value, or a value written without raw: true, will fail and return nil.

To read the value later, call #read_counter:

cache.increment("baz") # => 7
cache.read_counter("baz") # 7

Failsafe: Raises errors.

[ GitHub ]

# File 'activesupport/lib/active_support/cache/redis_cache_store.rb', line 253


def increment(name, amount = 1, options = nil)
  options = merged_options(options)
  key = normalize_key(name, options)

  instrument :increment, key, amount: amount do
    failsafe :increment do
      change_counter(key, amount, options)
    end
  end
end

#instance_variables_to_inspect (private)

[ GitHub ]

# File 'activesupport/lib/active_support/cache/redis_cache_store.rb', line 324


def instance_variables_to_inspect
  [:@options, :@redis].freeze
end

#pipeline_entries(entries, &block) (private)

[ GitHub ]

# File 'activesupport/lib/active_support/cache/redis_cache_store.rb', line 328


def pipeline_entries(entries, &block)
  redis.then { |c|
    if c.is_a?(Redis::Distributed)
      entries.group_by { |k, _v| c.node_for(k) }.each do |node, sub_entries|
        node.pipelined { |pipe| yield(pipe, sub_entries) }
      end
    else
      c.pipelined { |pipe| yield(pipe, entries) }
    end
  }
end

#read_entry(key, **options) (private)

Store provider interface: Read an entry from the cache.

[ GitHub ]

# File 'activesupport/lib/active_support/cache/redis_cache_store.rb', line 342


def read_entry(key, **options)
  deserialize_entry(read_serialized_entry(key, **options), **options)
end

#read_multi(*names)

::ActiveSupport::Cache Store API implementation.

Read multiple values at once. Returns a hash of requested keys -> fetched values.

[ GitHub ]

# File 'activesupport/lib/active_support/cache/redis_cache_store.rb', line 180


def read_multi(*names)
  return {} if names.empty?

  options = names.extract_options!
  options = merged_options(options)
  keys    = names.map { |name| normalize_key(name, options) }

  instrument_multi(:read_multi, keys, options) do |payload|
    read_multi_entries(names, **options).tap do |results|
      payload[:hits] = results.keys.map { |name| normalize_key(name, options) }
    end
  end
end

#read_multi_entries(names, **options) (private)

[ GitHub ]

# File 'activesupport/lib/active_support/cache/redis_cache_store.rb', line 352


def read_multi_entries(names, **options)
  options = merged_options(options)
  return {} if names == []
  raw = options&.fetch(:raw, false)

  keys = names.map { |name| normalize_key(name, options) }

  values = failsafe(:read_multi_entries, returning: {}) do
    redis.then { |c| c.mget(*keys) }
  end

  names.zip(values).each_with_object({}) do |(name, value), results|
    if value
      entry = deserialize_entry(value, raw: raw)
      unless entry.nil? || entry.expired? || entry.mismatched?(normalize_version(name, options))
        begin
          results[name] = entry.value
        rescue DeserializationError
        end
      end
    end
  end
end

#read_serialized_entry(key, raw: false, **options) (private)

[ GitHub ]

# File 'activesupport/lib/active_support/cache/redis_cache_store.rb', line 346


def read_serialized_entry(key, raw: false, **options)
  failsafe :read_entry do
    redis.then { |c| c.get(key) }
  end
end

#serialize_entries(entries, **options) (private)

[ GitHub ]

# File 'activesupport/lib/active_support/cache/redis_cache_store.rb', line 453


def serialize_entries(entries, **options)
  entries.transform_values do |entry|
    serialize_entry(entry, **options)
  end
end

#serialize_entry(entry, raw: false, **options) (private)

[ GitHub ]

# File 'activesupport/lib/active_support/cache/redis_cache_store.rb', line 445


def serialize_entry(entry, raw: false, **options)
  if raw
    entry.value.to_s
  else
    super(entry, raw: raw, **options)
  end
end

#stats

Get info from redis servers.

[ GitHub ]

# File 'activesupport/lib/active_support/cache/redis_cache_store.rb', line 319


def stats
  redis.then { |c| c.info }
end

#write_entry(key, entry, raw: false, **options) (private)

Write an entry to the cache.

Requires Redis 2.6.12+ for extended SET options.

[ GitHub ]

# File 'activesupport/lib/active_support/cache/redis_cache_store.rb', line 379


def write_entry(key, entry, raw: false, **options)
  write_serialized_entry(key, serialize_entry(entry, raw: raw, **options), raw: raw, **options)
end

#write_multi_entries(entries, **options) (private)

Nonstandard store provider API to write multiple values at once.

[ GitHub ]

# File 'activesupport/lib/active_support/cache/redis_cache_store.rb', line 423


def write_multi_entries(entries, **options)
  return if entries.empty?

  failsafe :write_multi_entries do
    pipeline_entries(entries) do |pipeline, sharded_entries|
      options = options.dup
      options[:pipeline] = pipeline
      sharded_entries.each do |key, entry|
        write_entry key, entry, **options
      end
    end
  end
end

#write_serialized_entry(key, payload, raw: false, unless_exist: false, expires_in: nil, race_condition_ttl: nil, pipeline: nil, **options) (private)

[ GitHub ]

# File 'activesupport/lib/active_support/cache/redis_cache_store.rb', line 383


def write_serialized_entry(key, payload, raw: false, unless_exist: false, expires_in: nil, race_condition_ttl: nil, pipeline: nil, **options)
  # If race condition TTL is in use, ensure that cache entries
  # stick around a bit longer after they would have expired
  # so we can purposefully serve stale entries.
  if race_condition_ttl && expires_in && expires_in > 0 && !raw
    expires_in += 5.minutes
  end

  modifiers = {}
  if unless_exist || expires_in
    modifiers[:nx] = unless_exist
    modifiers[:px] = (1000 * expires_in.to_f).ceil if expires_in
  end

  if pipeline
    pipeline.set(key, payload, **modifiers)
  else
    failsafe :write_entry, returning: nil do
      redis.then { |c| !!c.set(key, payload, **modifiers) }
    end
  end
end

Class: ActiveSupport::Cache::RedisCacheStore

Overview

Redis Cache Store

Constant Summary

Store - Inherited

Class Attribute Summary

Store - Inherited

Class Method Summary

Store - Inherited

Instance Attribute Summary

Store - Inherited

Instance Method Summary

Strategy::LocalCache - Included

Store - Inherited

Constructor Details

.new(error_handler: DEFAULT_ERROR_HANDLER, **redis_options) ⇒ RedisCacheStore

Class Attribute Details

.supports_cache_versioning? ⇒ Boolean (readonly)

Class Method Details

.build_redis(redis: nil, url: nil, **redis_options)

.build_redis_client(**redis_options) (private)

.build_redis_distributed_client(urls:, **redis_options) (private)

Instance Attribute Details

#redis (readonly)

#supports_expire_nx? ⇒ Boolean (readonly, private)

Instance Method Details

#change_counter(key, amount, options) (private)

#cleanup(options = nil)

#clear(options = nil)

#decrement(name, amount = 1, options = nil)

#delete_entry(key, **options) (private)

#delete_matched(matcher, options = nil)

#delete_multi_entries(entries, **_options) (private)

#deserialize_entry(payload, raw: false) (private)

#failsafe(method, returning: nil) (private)

#increment(name, amount = 1, options = nil)

#instance_variables_to_inspect (private)

#pipeline_entries(entries, &block) (private)

#read_entry(key, **options) (private)

#read_multi(*names)

#read_multi_entries(names, **options) (private)

#read_serialized_entry(key, raw: false, **options) (private)

#serialize_entries(entries, **options) (private)

#serialize_entry(entry, raw: false, **options) (private)

#stats

#write_entry(key, entry, raw: false, **options) (private)

#write_multi_entries(entries, **options) (private)

#write_serialized_entry(key, payload, raw: false, unless_exist: false, expires_in: nil, race_condition_ttl: nil, pipeline: nil, **options) (private)

`Store` - Inherited

`Store` - Inherited

`Store` - Inherited

`Store` - Inherited

`Strategy::LocalCache` - Included

`Store` - Inherited

.new(error_handler: DEFAULT_ERROR_HANDLER, **redis_options) ⇒ `RedisCacheStore`

.supports_cache_versioning? ⇒ `Boolean` (readonly)

#supports_expire_nx? ⇒ `Boolean` (readonly, private)