1. Environmental preparation
1.1 Use a virtual machine to install centos, as shown below
For installing centos in a virtual machine, please refer to: Installing CentOS7 in VirtualBox (Mac version)
1.2 Turn off the firewall in centos
## 查看防火墙状态
firewall-cmd --state
## 停止firewall
systemctl stop firewalld.service
## 禁止firewall开机启动
systemctl disable firewalld.service
1.3 Install jdk1.8
Installation package version: jdk-8u231-linux-x64.tar.gz The
specific installation process can refer to: Install jdk on Centos server
2. Installation of ElasticSearch
ElasticSearch安装包版本说明：elasticsearch-6.3.0.tar.gz
2.1 Create che user
groupadd -g 5000 che
useradd -g che -u 5000 che
2.2 Create the /data directory and assign permissions to the che user
chown -R che:che /data
2.3 Copy the installation package of ElasticSearch to the /data directory and unzip it
tar -zxvf elasticsearch-6.3.0.tar.gz
chown -R che:che /data/elasticsearch-6.3.0
3. Preparation of ElasticSearch
3.1 Modify /etc/security/limits.conf, add the following content:
* soft nproc 4096
* hard nproc 4096
* soft nofile 65536
* hard nofile 65536
3.2 Modify the /etc/sysctl.conf file to add vm.max_map_count=262144, and execute sysctl -p
3.3 ElasticSearch configuration file, /data/elasticsearch-6.3.0/config/elasticsearch.yml
bootstrap.memory_lock: false
bootstrap.system_call_filter: false
network.host: 0.0.0.0
http.port: 9200
path.data: /opt/data/elasticsearch
path.logs: /opt/logs/elasticsearch
Note: Remember to create the /opt/data/elasticsearch/, /opt/logs/elasticsearch directories, and grant permissions to the che user
chown -R che:che /opt/data/elasticsearch/
chown -R che:che /opt/logs/elasticsearch/
3.4 Start ElasticSearch service
As shown in the figure below, switch to
and enter http://192.168.1.102:9002 in the browser to access, as shown in the figure below
