Monitor file size through nagios

[Andreas Ericsson]

asam30 at gmail.com wrote:
> Hi,
> 
> I am aware of monitoring disk space using nagios (disk partitions -->
> check_disk). Now, I have a situation that I would like to monitor size of an
> individual file through nagios. Ex,
> 
> /var/log/custom-snmpd.log -- > this file will grow very fast and i would
> like to monitor if the size of this file crosses 1.5 G
> 
> Is there anyway we can do this?
> 

int main(int argc, char **argv)
{
	int i;
	for (i = 1; i < argc; i++) {
		struct stat st;
		const char *path = argv[i];
		if (stat(path, &st) < 0)
			die("Failed to stat %s: %s", path, strerror(errno));
		if (st.st_size > 1500 * 1024 * 1024)
			critical("Filesize (%d) > %d", st.st_size, 1500 * 1024 * 1024);
	}
	ok("No file is larger than %d", 1500 * 1024 * 1024);
}

Writing the various helpers is left as an exercise to the reader.

-- 
Andreas Ericsson                   andreas.ericsson at op5.se
OP5 AB                             www.op5.se
Tel: +46 8-230225                  Fax: +46 8-230231

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