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How to enable graph display for services using the check_icmp plugin after updating OP5 Monitor to 9.13

Problem/Error Copied

• Graphs are not displaying for services using the check_icmp plugin after the OP5 Monitor 9.13 update. This issue also persists for newly created check_icmp services.
• Unable to replicate the graph display issue in a lab environment. I’ve tried using the default template but to no avail. No relevant error messages are logged in /opt/monitor/op5/pnp/perfdata.log. Attached is the error message encountered when accessing the graphs.

• Nov 27 08:31:26 op5 pnp[1200]: ERROR: STDOUT => OK u:0.01 s:0.01 r:0.00 Nov 27 08:31:26 op5 pnp[1197]: ERROR: STDOUT => OK u:0.01 s:0.00 r:0.00 Nov 27 08:31:26 op5 pnp[3301497]: ERROR: STDOUT => OK u:0.01 s:0.01 r:0.00 Nov 27 08:31:26 op5 pnp[1202]: ERROR: STDOUT => OK u:0.01 s:0.01 r:0.00 Nov 27 08:31:26 op5 pnp[1198]: ERROR: STDOUT => OK u:0.01 s:0.01 r:0.00 Nov 27 08:31:26 op5 pnp[3974]: ERROR: STDOUT => OK u:0.01 s:0.01 r:0.00 Nov 27 08:31:26 op5 pnp[3973]: ERROR: STDOUT => OK u:0.01 s:0.01 r:0.00

Troubleshooting procedures Copied

• Please provide the following files.

  /opt/monitor/etc/pnp/npcd.cfg
  /opt/monitor/etc/pnp/process_perfdata.cfg
  

• Back up your /opt/monitor/etc/pnp/process_perfdata.cfg files and edit this line. From: RRD_STORAGE_TYPE = SINGLE To: RRD_STORAGE_TYPE = MULTIPLE From your /opt/monitor/op5/pnp/perfdata/<your_host_with_issue> , you will see files similar to this.

  PING.xml
  PING.rrd
  _HOST_.rrd
  _HOST_.xml
  

  Delete them and restart the following service.

  systemctl restart npcd
  systemctl restart rrdcached
  

  Deleted files will be generated. If the errors are gone, wait for at least 10 minutes and the graph should start to appear.