Install ES cluster steps
- Install the Java and make sure the
java -versionworked well
rpm -ivh jdk-8u77-linux-x64.rpm
- Create the user on the cluster nodes
groupadd elasticsearch
useradd elasticsearch -g elasticsearch -p passw0rd
passwd elasticsearch
- Create folder for es log and data folder
mkdir -p /data/lib/elasticsearch/data
mkdir -p /data/log/elasticsearch
- Change the owner for es log and data folder
chown -R elasticsearch:elasticsearch /data/lib
chown -R elasticsearch:elasticsearch /data/log
- Change the system limits
vim /etc/security/limits.conf
- Add following code in the limits.conf
* soft nofile 65535
* hard nofile 65535
* soft nproc 65535
* hard nproc 65535
NOTE: If you want to set the specific user, you can change the * to the user
- Install the elasticsearch
rpm -ivh elasticsearch-2.3.5.rpm
- Configure the elasticsearch.yml file
vim /etc/elasticsearch/elasticsearch.yml
- Add following configuration in to the elasticsearch.yml
cluster.name: ockb-es-cluster
node.name: es-node-1
http.port: 9225
network.host: [host1, _local_]
discovery.zen.ping.unicast.hosts: ["host1", "host2", "host2"]
path.data: /data/lib/elasticsearch/data
path.logs: /data/log/elasticsearch
NOTE: node.name should be unique for every cluster node
- Configure the /etc/sysconfig/elasticsearch file
vim /etc/sysconfig/elasticsearch
- Add following configuration in to the /etc/sysconfig/elasticsearch
ES_HOME=/usr/share/elasticsearch
CONF_DIR=/etc/elasticsearch
DATA_DIR=/data/lib/elasticsearch/data
LOG_DIR=/data/log/elasticsearch
PID_DIR=/var/run/elasticsearch
ES_USER=elasticsearch
ES_GROUP=elasticsearch
- Start the elasticsearch cluster
service elasticsearch start
- Check the elasticsearch worked well
curl -XGET 'http://localhost:9225/_cat/health?pretty'
- The default replicas is 1, if you want to change the replicas number you can chagne it through REST API
curl -XPUT 'http://localhost:9225/_settings?pretty' -d '{ "number_of_replicas" : node number - 1 }'
Install elasticsearch plugins
- Here use head plugin as an example
I used elasticsearch 2.3.5 so use following command to install the plugin
/usr/share/elasticsearch/bin install mobz/elasticsearch-head
After installed successfully
Restart the elasticsearch
The access the URL: http://<elasticsearch server>:9225/_plugin/head/
