help needed with nagios alert

"Natva, Arun Kumar" <[email protected]> Fri, 23 Jan 2015 22:47:02 +0000

Newsgroups	gmane.network.nagios.plugins
Message-ID	<3FC9058354F24443821EB365B2CDCC6B1E162FB8__5323.35887332938$1422056890$gmane$org@PWGSMSLIVMBS04.mail.aig.net>

Hi,
I am using nagios for alerting in our hadoop cluster.

When I setup a check_disk alert on all the nodes in the cluster, we are getting emails for all the hosts even though only one of the nodes exceeds the disk space threshold.

I tried multiple things but I am unable to figure out why nagios sends alerts for all hosts instead of just one host. Can you please help

Regards,
Arun.