RRDTool exits with errors -> ERROR: can't make a graph without contents

[Mathew Walker]

I recently ran into a similar testing Nagios/NagVis/PnP4Nagios.

To throw it out there... you are using an older version of PNP as they're beyond 0.6 now.

I was trying to add a new service and testing.  I had been tweaking the check's command line options to find the write output I wanted.  Once the check worked how I wanted, I noticed I was getting an error on the graph.  Since this was a new check, I deleted the existing RRD files that had been created and let new ones get created.  That corrected the issue.  I assume the RRD file was initially created with incorrect parameters as I was changing the check during my initial testing.

-- 
Mat W.

Date: Thu, 28 Jul 2011 17:18:58 +0530
From: Navdeep.Sidhu at tatatel.co.in
To: nagios-users at lists.sourceforge.net
Subject: [Nagios-users] RRDTool exits with errors -> ERROR: can't make a	graph without contents



Hi I'm using Nagios 2.8 with RRD tool version 1.0.50 & PNP version 0.3installed. Nagios is running on RHEL-4. I'm facing an issue in RRD Tool. Recently I have configured this toolfor Cisco devices (under serviceextinfo.cfg file) so that memory & CPUutilization should be available in graphs however I'm getting followingerror when trying to view the graphs. RRDTool exits with errors -> ERROR: can't make a graph without contents.  This tool is working fine with Intel platform servers & displaying thegraphs however not working in Cisco devices. I’m pasting excerpt of my host configuration & serviceextinfo file to provide clear picture. In fact, in Nagios web console, I’m able to see Memory & CPU utilization of Cisco devices however unable to view the graphs. I’m using check_snmp_mem.pl plugin to capture Memory utilization of Cisco devices. Let me know if any other info required from me.   Excerpts of host Configuration File define command{        command_name    process-service-perfdata        command_line    /usr/bin/perl /usr/local/nagios/libexec/process_perfdata.pl        } Excerpts of Serviceextinfo File define serviceextinfo{              host_name                            L3-Switch              service_description               MEM              action_url                /nagios/pnp/index.php?host=$HOSTNAME$&srv=$SERVICEDESC$              } I would really appreciate your help in this regard. RegardsNavdeep  
 
 
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