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#!/usr/bin/env ruby | |
# List all keys stored in memcache. | |
# Credit to Graham King at http://www.darkcoding.net/software/memcached-list-all-keys/ for the original article on how to get the data from memcache in the first place. | |
# Credit to @bkimble for the original script | |
# Blame to @jrumbut for adding content dumping | |
require 'net/telnet' | |
headings = %w(id expires bytes cache_key content) | |
rows = [] | |
localhost = Net::Telnet::new("Host" => "localhost", "Port" => 11211, "Timeout" => 3) | |
matches = localhost.cmd("String" => "stats items", "Match" => /^END/).scan(/STAT items:(\d+):number (\d+)/) | |
slabs = matches.inject([]) { |items, item| items << Hash[*['id','items'].zip(item).flatten]; items } | |
longest_key_len = 0 | |
longest_content_len = 0 | |
slabs.each do |slab| | |
localhost.cmd("String" => "stats cachedump #{slab['id']} #{slab['items']}", "Match" => /^END/) do |c| | |
matches = c.scan(/^ITEM (.+?) \[(\d+) b; (\d+) s\]$/).each do |key_data| | |
cache_key, bytes, expires_time = key_data | |
content = localhost.cmd("String" => "get #{cache_key}", "Match" => /^END/) {|c| c} | |
content = content.ascii_only? ? content : "Not ASCII, whatever it is" #make it a little more pipeline friendly | |
rows << [slab['id'], Time.at(expires_time.to_i), bytes, cache_key, content] | |
longest_content_len = [longest_content_len, content.length].max | |
longest_key_len = [longest_key_len,cache_key.length].max | |
end | |
end | |
end | |
row_format = %Q(|%8s | %28s | %12s | %-#{longest_key_len}s | %-#{longest_content_len}s |) | |
puts row_format%headings | |
rows.each{|row| puts row_format%row} | |
localhost.close |
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