Start ElasticSearch in CentOS 7

Photo by Greg Rakozy on Unsplash

Install ElasticSearch via RPM

• Add repo

sudo rpm --import https://artifacts.elastic.co/GPG-KEY-elasticsearch
cd /etc/yum.repos.d/
sudo vi elasticsearch.repo

• add lines

[elasticsearch]
name=Elasticsearch repository for 7.x packages
baseurl=https://artifacts.elastic.co/packages/7.x/yum
gpgcheck=1
gpgkey=https://artifacts.elastic.co/GPG-KEY-elasticsearch
enabled=0
autorefresh=1
type=rpm-md

• install

sudo yum install --enablerepo=elasticsearch elasticsearch
sudo systemctl start elasticsearch.service
sudo systemctl daemon-reload
sudo systemctl enable elasticsearch.service

• Enable automatic creation of system indicesedit

sudo vi /etc/elasticsearch/elasticsearch.yml

• add lines

action.auto_create_index: .monitoring*,.watches,.triggered_watches,.watcher-history*,.ml*

• check running status

curl http://localhost:9200/
systemctl status elasticsearch.service
journalctl -xe

• bind another IP (default is localhost, 127.0.0.1)

sudo vi /etc/elasticsearch/elasticsearch.yml

• add lines

network.host: 0.0.0.0
network.bind_host: 0.0.0.0
discovery.seed_hosts: ["0.0.0.0"]
cluster.initial_master_nodes: 0.0.0.0