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List the keys in a given memcached instance running locally
#!/usr/bin/env ruby
require 'net/telnet'
cache_dump_limit = 100
localhost = Net::Telnet::new("Host" => "localhost", "Port" => 11211, "Timeout" => 3)
slab_ids = []
localhost.cmd("String" => "stats items", "Match" => /^END/) do |c|
matches = c.scan(/STAT items:(\d+):/)
slab_ids = matches.flatten.uniq
end
puts
puts "Expires At\t\t\t\tCache Key"
puts '-'* 80
slab_ids.each do |slab_id|
localhost.cmd("String" => "stats cachedump #{slab_id} #{cache_dump_limit}", "Match" => /^END/) do |c|
matches = c.scan(/^ITEM (.+?) \[(\d+) b; (\d+) s\]$/).each do |key_data|
(cache_key, bytes, expires_time) = key_data
humanized_expires_time = Time.at(expires_time.to_i).to_s
puts "[#{humanized_expires_time}]\t#{cache_key}"
end
end
end
puts
localhost.close
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