I'm trying to install graph-2.3.1.zip into our elasticsearch-2.2.0 installation. I'm following the instructions at https://www.elastic.co/guide/en/graph/current/installing-graph.html, installing from a zip file and I'm getting the error:
CONF_FILE setting is no longer supported. elasticsearch.yml must be placed in the config directory and cannot be renamed.
From this post, CONF_FILE setting is no longer supported, I see that I should comment out the CONF_FILE line in /etc/sysconfig/elasticsearch. I did that on all three nodes of my elasticsearch cluster, restarted the cluster and ran the install again but got the same error. What am I doing wrong?