Error in Plesk: “worker_rlimit_nofile” directive is duplicate

Symptoms

• The following error is shown in Plesk:

  PLESK_ERROR: New configuration files for the Apache web server were not created due to the errors in configuration templates: nginx: [emerg] “worker_rlimit_nofile” directive is duplicate in /etc/nginx/ulimit.global_params:1 nginx: configuration file /etc/nginx/nginx.conf test failed

  or

  PLESK_ERROR: New configuration files for the Apache web server were not created due to the errors in configuration templates: nginx: [emerg] “gzip” directive is duplicate in /etc/nginx/conf.d/nginx.conf:2 nginx: configuration file /etc/nginx/nginx.conf test failed

• It might not be possible to enable nginx support with the error:

  # /usr/local/psa/admin/bin/nginxmng -e
  nginx: [emerg] “worker_rlimit_nofile” directive is duplicate in /etc/nginx/ulimit.global_params:1

• The nginx configuration test fails:

  # nginx -t
  nginx: [emerg] “worker_rlimit_nofile” directive is duplicate in /etc/nginx/nginx.conf:45
  nginx: configuration file /etc/nginx/nginx.conf test failed

• The Nginx directive defined in the error message (I.E.: worker_rlimit_nofile or gzip), is defined in the following configuration files:

  # grep -r worker_rlimit_nofile /etc/nginx/ | grep -v “#”
  /etc/nginx/nginx.conf:worker_rlimit_nofile 20480;
  /etc/nginx/ulimit.global_params:worker_rlimit_nofile 65536;

Cause

The
Nginx directive returned in the error/s message is defined twice

Resolution

1. Connect to the server using SSH .

2. Open the file from the error message in text editor and comment the duplicated directive with “#”:

   # cat /etc/nginx/nginx.conf
   #worker_rlimit_nofile 20480;

   Note: In the example above the directive is worker_rlimit_nofile

3. If Nginx was not working, re-enable it with the commands:

   # /usr/local/psa/admin/bin/nginxmng -d
   # /usr/local/psa/admin/bin/nginxmng -e

   If it was already working, just reload it as follows:

   # service nginx reload