# File lib/active_support/vendor/memcache-client-1.5.1/memcache.rb, line 540 def get_server_for_key(key) raise ArgumentError, "illegal character in key #{key.inspect}" if key =~ /\s/ raise ArgumentError, "key too long #{key.inspect}" if key.length > 250 raise MemCacheError, "No servers available" if @servers.empty? return @servers.first if @servers.length == 1 hkey = hash_for key 20.times do |try| server = @buckets[hkey % @buckets.nitems] return server if server.alive? hkey += hash_for "#{try}#{key}" end raise MemCacheError, "No servers available" end