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PMDANGINX(1) General Commands Manual PMDANGINX(1)


pmdanginx - nginx performance metrics domain agent (PMDA)


pmdanginx is a Performance Metrics Domain Agent (PMDA) which exports performance metrics from nginx(8) - an HTTP and reverse proxy server, a mail proxy server, and a generic TCP proxy server.


This PMDA requires that the nginx stub_status module is active and available at http://localhost/nginx_status.

In order to enable this module, the "server" section of the nginx.conf configuration file should contain the following.

location /nginx_status {

stub_status on;
access_log off;
allow ::1;
deny all; }

Instrumentation availability can be verified using these commands (compile-time then run-time checks):

# nginx -V 2>&1 | grep -o with-http_stub_status_module
# curl http://localhost/nginx_status

Install the nginx PMDA by using the Install script as root:

# cd $PCP_PMDAS_DIR/nginx
# ./Install

To uninstall, the following must be done as root:

# cd $PCP_PMDAS_DIR/nginx
# ./Remove

pmdanginx is launched by pmcd(1) and should never be executed directly. The Install and Remove scripts notify pmcd(1) when the agent is installed or removed.


optional configuration file for pmdanginx
installation script for the pmdanginx agent
undo installation script for the pmdanginx agent
default log file for error messages from pmdanginx


Environment variables with the prefix PCP_ are used to parameterize the file and directory names used by PCP. On each installation, the file /etc/pcp.conf contains the local values for these variables. The $PCP_CONF variable may be used to specify an alternative configuration file, as described in pcp.conf(5).


PCPIntro(1), pmcd(1) and nginx(8).

PCP Performance Co-Pilot