Nagios Support Forum

I'm trying to set a correct critical threshold level for the check_mysql_query plugin. The table will show a 0 when good and 1 or higher when critical.

I can't find a working critical threshold value that will alarm. On my test system when I run the query I correctly get a "1". When I run the query using the plugin I get "1.000000".

This is what I have on the host without the critical threshold:

command[check_mysql_query]=/usr/lib64/nagios/plugins/check_mysql_query -H localhost -u username -p password -d demo -q "query"

command[check_mysql_query]=/usr/lib64/nagios/plugins/check_mysql_query -H localhost -u username -p password -d demo -q "query"

Where and how are you defining your warning and critical thresholds in this command? Or for use with it "i.e arguments."

I tried these:

command[check_mysql_query]=/usr/lib64/nagios/plugins/check_mysql_query -H localhost -u username -p password -d demo -q "query" -w 1:1 -c 1:1

command[check_mysql_query]=/usr/lib64/nagios/plugins/check_mysql_query -H localhost -u username -p password -d demo -q "query" -c 1:9999

But these won't kick off the critical alarm. If I do "-c 2:9999", it will go critical; however the query most of the time will be 0 (good) or 1 (bad).

Have you just tried using ~:0? Considering that 1 is bad and 0 is good, doing greater than 0 should match, if 1 go critical.

That worked! Thanks so much!

Excellent!