How to let the agent collect the information in access.log? about agent

[oliveromahony]

Hi @chengshuyi, the NGINX config needs the access log information present. If this isn't present the NGINX Agent won't read it.

An example config would be:

    log_format  main  '$remote_addr - $remote_user [$time_local] "$request" '
                      '$status $body_bytes_sent "$http_referer" '
                      '"$http_user_agent" "$http_x_forwarded_for"'
                      '"$upstream_cache_status"';
  
    access_log  /var/log/nginx/access.log  main;

in this case the NGINX Agent would read the log_format mentioned above to collect OSS metrics from NGINX.
If the access_log and log_format directives are present in your configuration, can you post what NGINX config you have and I can see if there is something else we can take a look at being the potential cause?

[chengshuyi]

Thank you very much for your reply. I can collect access.log by adding advanced-metrics to the nginx-agent.conf file.

extensions:
   -advanced-metrics

[oliveromahony]

Ah, we have 2 sets of metrics being collected NGINX and app centric metrics (off by default). What you mentioned comes from the NGINX Plus Metrics Module (this needs to be installed on NGINX Plus and is what I called the app centric metrics). The documentation for that is located here: https://docs.nginx.com/nginx-management-suite/nginx-agent/install-nginx-plus-advanced-metrics/

Let me know if you have any other questions