Again attempted a graylog upgrade. All went well on that front. All three nodes show up in cluster but elasticsearch connectivity seems to still be an issue. Is there some obvious configuration changes I am missing here?
As per documentation I changed as follows.
elasticsearch_discovery_zen_ping_unicast_hosts = IPADDRESS:9300,etc,etc
and added this.
elasticsearch_hosts = http://IPADDRESS:9200,etc,etc
Graylog seems to be running just fine but complains in indices that it can’t display the indexes due to a problem communicating with elasticsearch. It does however report the cluster as green and the correct amount of live shards.