SSL Error on ElasticSearch Cluster from kibana

I am setup to cluster OpenDistro Plugin.
In 1-st node , start demo script and setup simple configure on other nodes.

It is Elastic conf.

` ELK-Cluster elk_node1 /elk-data
path.logs: /var/log/elasticsearch
bootstrap.memory_lock: true
#http.port: 9200
node.master: true true
cluster.initial_master_nodes: ["elk_node1", "elk_node2", "elk_node3"]
discovery.seed_hosts: ["", "","",]
discovery.zen.minimum_master_nodes: 2`

  On my kibana conf:

server.port: 5601 "" "Kibana"
elasticsearch.hosts: ["" , "", "" ]
elasticsearch.ssl.certificateAuthorities: ["/etc/kibana/root-ca.pem"]  #this cert from elk-cluster
elasticsearch.ssl.verificationMode: certificate
monitoring.ui.enabled: true false
elasticsearch.username: admin
elasticsearch.password: admin
elasticsearch.requestHeadersWhitelist: ["securitytenant","Authorization"]
opendistro_security.multitenancy.enabled: true
opendistro_security.multitenancy.tenants.preferred: ["Private", "Global"]
opendistro_security.readonly_mode.roles: ["kibana_read_only"]

When I start kibana,

Unable to revive connection
No living connection

io.netty.handler.ssl.NotSslRecordException: not an SSL/TLS record:

@kaktotaklol what version of odfe are you running? The below values seem incorrect if you are using a default set up:

elasticsearch.username: admin
elasticsearch.password: admin 

should be:

elasticsearch.username: kibanaserver
elasticsearch.password: kibanaserver