es installation (Linux)
1. Official website download
https://www.elastic.co/downloads/elasticsearch
2. After downloading, unzip to Linux directory such as (/ usr / local)
3. Modify the core configuration file elasticearch.yml
Be sure to configure node.name or you will get an error
The corresponding cluster name also needs to be changed. Note that the name is the same as the node name above
In order to access the Internet
4. Add users
es does not allow the root user to start,
useradd esuser
chown -R esuser:esuser /usr/local/elasticsearch-7.4.2
your esuser
whoami
5. Modify Linux file descriptor limits and other information
Add at the end of /etc/security/limits.conf
* soft nofile 65536
* hard nofile 131072
* soft nproc 2048
* hard nproc 4096
Added by default in /etc/sysctl.conf
sysctl -p refresh
Prevent errors
6. Start es
Access your virtual machine ip + port number 9200, the following is OK
problem
-
jps command is missing
There is a problem with Java installation or source is not executed after configuring environment variables
reference
1. The notes of the teacher of the course of the Mu class network architect
2.https://blog.csdn.net/happyzxs/article/details/89156068
