nagios perl plugin

[szpuni]

Hi All,

I have a small problem with perl plugin for nagios 3.
Problem is with printf function:

elsif ($clients_conn < $opt_w) {

printf("OK: Clients connected: %d | CPU Usage: %d\n", $clients_conn, $cpusage);
exit $ERRORS{"OK"}
}

this is giving me an error from embaded perl of nagios:

**ePN /usr/lib/nagios/plugins/check_fms_1.pl: "Argument "" isn't numeric in sprintf at /usr/lib/nagios3/p1.pl line 81,"

But code work nice if I use it from a shell.
If I delete $cpusage varible and corresponding %d error dissapers.

Do anybody have any idea why this is happening?

 

[max1x]

One of these is causing an issue most likely:

$clients_conn, $cpusage

is it supposed be $cpuusage or $cpusage? Print their values to see if they are fully numeric and if you need to chomp anything.

Are you running strict / warnings?

 

[szpuni]

I'm using strict but not warnings. Strict is needed by nagios anyway.

is you looking for a typo there is none, could be in this post but I was triple checking this.

It might be need for chomp anything like end of line but when I print this value on the screen this value is one digit.
Value is taken from xml file by regular expresion:

my $regex3 = '<cpu_Usage>(\d+)</cpu_Usage>';

so this is giving me digit let say 2.

as I was saying if I run this through shell everything is showing but through nagios I'm getting this error

 

[Annihilannic]

So what do you get it if you print out the value of $cpusage when you don't run it through the shell? If you use something like print "\$cpusage is [$cpusage]\n"; it may be easier to see any unexpected characters around it.

Annihilannic.