Please, I would like to install an Elasticsearch 8 cluster on 3 servers running on Ubuntu 20.04. I started by installing Elasticsearch8 on the first server:
wget -qO - https://artifacts.elastic.co/GPG-KEY-elasticsearch | sudo apt-key add -
echo "deb https://artifacts.elastic.co/packages/8.x/apt stable main" | sudo tee -a /etc/apt/sources.list.d/elastic-8.x.list
sudo apt update
sudo apt install elasticsearch=8.17.0
I modified the file /etc/elasticsearch/elasticsearch.yml:
cluster.name: my-application
node.name: node-1
path.data: /var/lib/elasticsearch
path.logs: /var/log/elasticsearch
network.host: 45.62.186.106
http.port: 9200
xpack.security.enabled: true
xpack.security.enrollment.enabled: true
# Enable encryption for HTTP API client connections, such as Kibana, Logstash, and Agents
xpack.security.http.ssl:
enabled: true
keystore.path: certs/http.p12
# Enable encryption and mutual authentication between cluster nodes
xpack.security.transport.ssl:
enabled: true
verification_mode: certificate
keystore.path: certs/transport.p12
truststore.path: certs/transport.p12
# Create a new cluster with the current node only
# Additional nodes can still join the cluster later
#cluster.initial_master_nodes: ["vultr"]
# Allow HTTP API connections from anywhere
# Connections are encrypted and require user authentication
#http.host: 0.0.0.0
# Allow other nodes to join the cluster from anywhere
# Connections are encrypted and mutually authenticated
#transport.host: 0.0.0.0
And I launched the first node, once launched I used the command to generate a token:
systemctl daemon-reload
sudo systemctl enable elasticsearch.service
sudo systemctl start elasticsearch.service
sudo /usr/share/elasticsearch/bin/elasticsearch-create-enrollment-token -s node
On the second server I just installed Elasticsearch without modifying anything in the elasticsearch.yml file.
When I wanted to add server 2 node to the cluster using the command:
sudo /usr/share/elasticsearch/bin/elasticsearch --enrollment-token <My_token_get_from_server_One>
But I get this error:
ERROR: Skipping security auto configuration because it appears that the node is not starting up for the first time. The node might already be part of a cluster and this auto setup utility is designed to configure Security for new clusters only., with exit code 80
It's weird, the installation has just been done and it has never been part of a cluster. I then deleted Elasticsearch and purged everything to reinstall Elasticsearch, for this time I modified the Elasticsearch configuration file.
And I restarted the node, trying to add it with the token. I had the same error.
# ---------------------------------- Cluster -----------------------------------
#
# Use a descriptive name for your cluster:
#
cluster.name: my-application
#
# ------------------------------------ Node ------------------------------------
#
# Use a descriptive name for the node:
#
node.name: node-2
#
# Add custom attributes to the node:
#
#node.attr.rack: r1
#
# ----------------------------------- Paths ------------------------------------
#
# Path to directory where to store the data (separate multiple locations by comma):
#
path.data: /var/lib/elasticsearch
#
# Path to log files:
#
path.logs: /var/log/elasticsearch
#
ERROR: Skipping security auto configuration because it appears that the node is not starting up for the first time. The node might already be part of a cluster and this auto setup utility is designed to configure Security for new clusters only., with exit code 80
