How to configure ElasticSearch to restart after crash

Question

Using the apt-get package for ElasticSearh, how can I configure the service to restart itself automatically after crashing on Ubuntu?

score 27 · Answer 1 · answered Apr 09 '18 at 17:56

Restart on failure option is missing in the default service of elasticsearch.

So, We can add Restart=always option in the service.

Edit elasticsearch service unit file using the command sudo systemctl edit elasticsearch.service. This command will create a file /etc/systemd/system/elasticsearch.service.d/override.conf.
Now, add the following lines in the unit file.
```
[Service]
Restart=always
```
Save the file and refresh the unit file using command sudo systemctl daemon-reload
Can check the changes using command sudo systemctl cat elasticsearch.service.

We can use Restart= always, on-abnormal, on-success, on-failure, etc based on the requirement. Reference.

Editing unit file - Reference

First of all run `$ sudo -i` to avoid permission errors – Tahir Yasin Aug 11 '21 at 10:36 — Tahir Yasin, Aug 11 '21 at 10:36

score 2 · Answer 2 · answered Sep 07 '21 at 16:08

Auto restart elasticsearch services in 7.14.1:

Go to:

nano /usr/lib/systemd/system/elasticsearch.service

The location of the service file is changed in 7.14.1

Then add this line to the service file:

[Service]

Restart=always

After that save the file and restart the elasticsearch service.

Now you are good to go. (After this there won't be any crash)

score 1 · Answer 3 · edited Jun 04 '20 at 12:55

1

Write a #!/bin/sh script as follows:

if ps -ef | grep -v grep | grep elastic ; then
         exit 0
else
    /etc/init.d/elasticsearch start >> /var/run/elasticsearch.pid &
    exit 0
fi

edited Jun 04 '20 at 12:55

maesk

answered Oct 15 '14 at 14:00

ecaleohs

It didn't add in my new lines. - insert a break after "then", "exit 0", "else", "..znc.pid & "exit 0". last line is fi. – ecaleohs Oct 15 '14 at 14:01

3 Answers3