check_nginx_status.pl

CHECK_NGINX_STATUS ================== Nagios check checking the nginx_status page report from nginx. Tracking Active connections processes, request per second, connections per seconds, Connections status. Nginx Monitor for Nagios version 0.10 GPL licence, (c)2012 Leroy Regis Known Bugs: =========== You may need to adapt the nagios libraries path on the script (currently /usr/local/nagios/libexec), line 18 of the script. It as been reported on different places such as /usr/local/libexec/nagios or /usr/share/nagios/libexec. Graphing Results ================ This check is compatible with performance data analysis for passive monitoring (RRD based graphs). So the script output is available for graph tools. @maethor made a PNP4Nagios template available in this Gist: * https://gist.github.com/maethor/8714514 Script Documentation: ===================== Usage: ./check_nginx_status.pl -H [-p ] [-s servername] [-t ] [-w -c ] [-V] [-d] [-u ] [-U user -P pass -r realm] -h, --help print this help message -H, --hostname=HOST name or IP address of host to check -p, --port=PORT Http port -u, --url=URL Specific URL to use, instead of the default "http:///nginx_status" -s, --servername=SERVERNAME ServerName, (host header of HTTP request) use it if you specified an IP in -H to match the good Virtualhost in your target -S, --ssl Wether we should use HTTPS instead of HTTP -U, --user=user Username for basic auth -P, --pass=PASS Password for basic auth -r, --realm=REALM Realm for basic auth -d, --debug Debug mode (show http request response) -m, --maxreach=MAX Number of max processes reached (since last check) that should trigger an alert -t, --timeout=INTEGER timeout in seconds (Default: 15) -w, --warn=ACTIVE_CONN,REQ_PER_SEC,CONN_PER_SEC number of active connections, ReqPerSec or ConnPerSec that will cause a WARNING -1 for no warning -c, --critical=ACTIVE_CONN,REQ_PER_SEC,CONN_PER_SEC number of active connections, ReqPerSec or ConnPerSec that will cause a CRITICAL -1 for no CRITICAL -V, --version prints version number Note : 3 items can be managed on this check, this is why -w and -c parameters are using 3 values thresolds - ACTIVE_CONN: Number of all opened connections, including connections to backends - REQ_PER_SEC: Average number of request per second between this check and the previous one - CONN_PER_SEC: Average number of connections per second between this check and the previous one Examples: This one will generate WARNING and CRITICIAL alerts if you reach 10 000 or 20 000 active connection; or 100 or 200 request per second; or 200 or 300 connections per second check_nginx_status.pl -H 10.0.0.10 -u /foo/nginx_status -s mydomain.example.com -t 8 -w 10000,100,200 -c 20000,200,300 this will generate WARNING and CRITICAL alerts only on the number of active connections (with low numbers for nginx) check_nginx_status.pl -H 10.0.0.10 -s mydomain.example.com -t 8 -w 10,-1,-1 -c 20,-1,-1 theses two equivalents will not generate any alert (if the nginx_status page is reachable) but could be used for graphics check_nginx_status.pl -H 10.0.0.10 -s mydomain.example.com -w -1,-1,-1 -c -1,-1,-1 check_nginx_status.pl -H 10.0.0.10 -s mydomain.example.com Licence: GNU GPL v3

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