confusing redis stuff

gistfile1.txt

# Retrieve all nodes' local hostnames and set the master_ip
# based on a match to *this* node's local hostname.
#
# I don't know why this is even necessary.
redis_nodes = all_provider_local_hostnames(node[:redis][:service_name]) 

master_ip = ""
myhostname = node[:cloud][:local_hostname] rescue node[:fqdn]
found = 0
redis_sorted_nodes = redis_nodes.sort
redis_sorted_nodes.length.times do |j|
  if found == 1 then
    master_ip = redis_sorted_nodes[j]
    break
  end

  if redis_sorted_nodes[j] == myhostname then
    found = 1
  end
end

if master_ip == "" then
  master_ip = redis_sorted_nodes[0]
end