Has anyone gotten Elasticsearch to work on Red Hat Linux 7 with firewalld enabled? I always get time out errors with multicast or unicast enabled. Everything works fine when firewalld is disabled (not long term solution). I have opened ports 9200 and 9300-9400 for UDP in firewalld.
I first posted this under Logstash ( MasterNotDiscoveredException with RHEL 7 Firewall on LS 1.4.2 & ES 1.2.1 ) but when "curl 220.127.116.11:9200" failed, they blamed the network.