I have a healthy ES cluster running on ec2. I'm tyring to connect Graylog server to the cluster using unicast, but Graylog receives an empty reponse from the unicast host. Using curl, I can reproduce the empty response.
The result of curl 10.10.198.233:9200/_cluster/health?pretty=true
is
"cluster_name" : "graylog-graylog-elasticsearch-scratch-Scratch-client-0otqGLpa",
"status" : "green",
"timed_out" : false,
"number_of_nodes" : 3,
"number_of_data_nodes" : 3,
"active_primary_shards" : 1,
"active_shards" : 2,
"relocating_shards" : 0,
"initializing_shards" : 0,
"unassigned_shards" : 0,
"number_of_pending_tasks" : 0
}
The result of curl 10.10.198.233:9300
gives curl: (52) Empty reply from server
This is causing Graylog server to fail at startup. How do I fix the empty response given by the Elasticsearch node?
