sample cluster_wiki_db wiki-db service cluster_wiki_cache wiki-cache service cluster_wiki_slave_db wiki-slave-db service cluster_wiki_balancer wiki-balancer service cluster_demo_wiki demo-wiki service wiki_db wiki-db local:mysql-98 wiki_db/0 wiki-db/0 ec2-50-19-198-127.compute-1.amazonaws.com wiki_db->wiki_db/0 demo_wiki demo-wiki local:mediawiki-68 demo_wiki->wiki_db db wiki_slave_db wiki-slave-db local:mysql-98 demo_wiki->wiki_slave_db db wiki_cache wiki-cache local:memcached-11 demo_wiki->wiki_cache cache wiki_balancer wiki-balancer local:haproxy-14 demo_wiki->wiki_balancer reverseproxy demo_wiki/0 demo-wiki/0 ec2-50-16-127-225.compute-1.amazonaws.com demo_wiki->demo_wiki/0 demo_wiki/1 demo-wiki/1 ec2-50-16-149-161.compute-1.amazonaws.com demo_wiki->demo_wiki/1 wiki_slave_db->wiki_db master wiki_slave_db/0 wiki-slave-db/0 ec2-50-17-77-63.compute-1.amazonaws.com wiki_slave_db->wiki_slave_db/0 wiki_cache/0 wiki-cache/0 ec2-184-72-144-240.compute-1.amazonaws.com wiki_cache->wiki_cache/0 wiki_cache/1 wiki-cache/1 ec2-75-101-216-57.compute-1.amazonaws.com wiki_cache->wiki_cache/1 wiki_balancer/0 wiki-balancer/0 ec2-174-129-69-54.compute-1.amazonaws.com wiki_balancer->wiki_balancer/0