tilecaches = search(:node, "roles:tilecache").sort_by { |n| n[:hostname] }
tilerenders = search(:node, "roles:tile").sort_by { |n| n[:hostname] }
tilecaches = search(:node, "roles:tilecache").sort_by { |n| n[:hostname] }
tilerenders = search(:node, "roles:tile").sort_by { |n| n[:hostname] }