Question
Nginx server crashing occasionally
- Posted on November 23, 2022
- NginxUbuntu 20.04
Asked by sergeybremenskiy
I have ubuntu server with nginx that crashing from time to time and i cant handle why.
Ubuntu 20.04.4 Nginx version: nginx/1.18.0 (Ubuntu)
My logs:
2022/11/22 22:14:11 [info] 4076541#4076541: Using 32768KiB of shared memory for nchan in /etc/nginx/nginx.conf:102
2022/11/22 22:14:12 [notice] 4076546#4076546: signal process started
2022/11/22 22:14:15 [notice] 4076550#4076550: signal process started
2022/11/22 22:14:18 [notice] 4076553#4076553: signal process started
2022/11/22 22:14:18 [error] 4076553#4076553: open() "/run/nginx.pid" failed (2: No such file or directory)
What should I do to fix this?
My nginx working well now, and after: ‘systemctl start nginx.service’ nginx started without any errors but from practice if i’ll wait some time (it’s may be day or one week) nginx will crash again
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Hi there,
Indeed as Sergio mentioned, it is best to check the
/var/log/syslogfor more information no why the service might be crashing.I’ve seen a similar problem in the past caused by Certbot.
The following lines in the renewal config files at
/etc/letsencrypt/renewal/*with outdated versions of Certbot might cause the problem:What I had to do was to upgrade Cerbot to the latest version:
After that upgrade the
pre_hookandpost_hooklines should no longer be in the renewal config files.Hope that this helps!
Best,
Bobby
Hi @sergeybremenskiy,
It is difficult to find out the problem without more information.
Is there anything relevant in /var/log/syslog?
The official nginx debugging page may be helpful.
It may also be that the process works correctly and that at a specific moment a process reach the memory limit that your Droplet supports and it is crashed, it would be enough to add more memory to your droplet.
Hope that helps you,
Sergio Turpín