JAVA
sudo apt-get update
sudo apt-get install -y python-software-properties software-properties-common apt-transport-https
sudo add-apt-repository ppa:webupd8team/java -y
sudo apt-get update
sudo apt-get install -y oracle-java8-installer
java -version
wget -qO - https://artifacts.elastic.co/GPG-KEY-elasticsearch
sudo apt-key add echo "deb https://artifacts.elastic.co/packages/5.x/apt stable main"
sudo tee -a /etc/apt/sources.list.d/elastic-5.x.list
sudo apt-get update
sudo apt-get install -y elasticsearch
vim /etc/elasticsearch/elasticsearch.yml
`bootstrap.memory_lock: true
network.host: localhost
http.port: 9200`
vim /usr/lib/systemd/system/elasticsearch.service
`LimitMEMLOCK=infinity`
vim /etc/default/elasticsearch
`MAX_LOCKED_MEMORY=unlimited
sudo systemctl daemon-reload
sudo systemctl enable elasticsearch
sudo systemctl start elasticsearch
TEST
curl -XGET 'localhost:9200/?pretty'