Restart ES in Linux server

ES does not support direct restart. You can only end the process first and then run the script to restart. The following is the operation process:

1. First find the ES process of the server. You can use the following two commands to search:

ps -aux |grep elasticsearch

ps -ef |grep elasticsearch

The 15870 that follows the command jintaiyang+ is the ES service process pid we need to find.

2. End the ES process kill -9 pid (process number, here is 15870)

kill -9 15870

3. Restart ES ( Note: For security reasons, ES does not allow root startup. Switch to the ES account su jintaiyang first. An error will be reported when starting with the root account )

Switch to the bin directory where ES is located and execute (-d means running in the background)

./elasticsearch -d

4. Check ES startup status

curl 127.0.0.1:9200