Werner Flamme [07.09.2009 11:06]: > Jim Avery [07.09.2009 10:03]: >> 2009/9/5 Werner Flamme <[email protected]>: >>> Hi, >>> >>> I want to check a cluster consisting of 2 nodes. The task is simple: >>> show how many nodes are up (respective down, there are two nodes). >>> >>> The command definition is: >>> >>> $USER1$/check_cluster2 -h -l $HOSTALIAS$ -w 1 -c 2 -d $ARG1$ >>> >>> So, the host alias of the cluster will be the label, the plugin should >>> give a "warning" when 1 node is down, and should cry "critical" when >>> both nodes are down. >>> >>> That's what I thought this command would do. >>> >>> And that's what I read in the mean time: >>> >>> CLUSTER OK: FW-Cluster: 1 up, 1 down, 0 unreachable >>> >>> Sorry? Why is "1 down" not seen as warning? What do I do wrong? >>> >>> TIA >>> Werner >> >> I'm not familiar with check_cluster2, but came across a similar >> situation when using check_cluster for a host check recently. When I >> run check_cluster --help, it tells me :- >> >> See: >> http://nagiosplug.sourceforge.net/developer-guidelines.html#THRESHOLDFORMAT >> for THRESHOLD format and examples. >> >> I found I had to use "-w 0 -c 1" to make the plugin behave how I >> wanted (warn if one host is down and critical if two are down). > > Good graciuos ;-) - it never occured to me when reading > > -w, --warning=THRESHOLD > Specifies the range of hosts or services in cluster that must be in > a non-OK state in order to return a WARNING status level > > that a THRESHOLD of zero hosts means 1 host. But this really seems to > work, since when both nodes were down (yesterday afternoon and this > morning), the status finally changed to WARNING. > > All right, I changed -w 1 -c 2 to -w 0 -c 1. I still wonder how we > managed to get the alarms on the other clusters weeks ago :-( > >> Also, if you're using this as a host check (not a service check) note >> that if the host check returns a warning state, Nagios will usually >> interpret this to mean that the host is 'UP'. See >> http://nagios.sourceforge.net/docs/3_0/hostchecks.html for an >> explanation of how plugin results are interpreted for host checks in >> Nagios. > > Thanks - lucklily we use a test that only returns OK and CRITICAL. > > Thanks for the hint - I think one of the nodes might fall down any > minute now, I will tell if this works ;-)
OK, the node was up longer than expected ;-) - but it worked with -w 0 -c 1: one node down causes WARNING state! Thank you very much! Regards Werner ------------------------------------------------------------------------------ Let Crystal Reports handle the reporting - Free Crystal Reports 2008 30-Day trial. Simplify your report design, integration and deployment - and focus on what you do best, core application coding. Discover what's new with Crystal Reports now. http://p.sf.net/sfu/bobj-july _______________________________________________ Nagios-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/nagios-users ::: Please include Nagios version, plugin version (-v) and OS when reporting any issue. ::: Messages without supporting info will risk being sent to /dev/null
