Dalli KeysMatch
This gem add to the Dalli::Client methods to list/filter/delete keys using regexp or string patterns.
Memcached binary protocol does not implement stats cachedump command. This package is using telnet as workaround. It may not be performatic in an environment with high data volume. So It's not recommend using it in production. Useful for debugging or in background jobs.
Installation
Add this line to your application's Gemfile:
gem 'dalli-keys-match'And then execute:
$ bundle
Or install it yourself as:
$ gem install dalli-keys-match
Usage
require 'dalli/keys_match'
> client = Dalli::Client.new('localhost:11211')
> client.set('dalli-keys-match-1' , 1)
> client.set('dalli-keys-match-2' , 2)
> client.keys(/dalli-keys-match-\d/)
=> ["dalli-keys-match-2", "dalli-keys-match-1"]
> client.keys('dalli-keys-match-')
=> ["dalli-keys-match-2", "dalli-keys-match-1"]
> client.delete_matched(/dalli-keys-match-1/)
=> 1
> client.keys(/dalli-keys-match-\d/)
=> ["dalli-keys-match-2"]
Gem also handles namespaces. Keys are normalized and filters are always optimized to only look into the namespace
> dc1 = Dalli::Client.new('localhost:11211')
> dc2 = Dalli::Client.new('localhost:11211', namespace: 'marcosgz')
> dc1.set('zimmermann', 'last-name')
> dc2.set('zimmermann', 'last-name')
> dc1.keys(/zimmermann/)
=> ["zimmermann", "marcosgz:zimmermann"]
> dc2.keys(/zimmermann/)
=> ["zimmermann"]
> dc2.keys_with_namespace(/zimmermann/)
=> ["marcosgz:zimmermann"]
> dc2.delete_matched(/^zimmermann/)
=> 1
> dc1.keys(/zimmermann/)
=> ["zimmermann"]
Optional Configuration
Dalli::KeysMatch.config.telnet(
'Timeout' => 30,
'Prompt' => /(^END$)/,
)
Contributing
Bug reports and pull requests are welcome on GitHub at https://github.com/marcosgz/dalli-keys-match.