How to troubleshoot empty graph, missing RRD files

[nilie]

nilie [http://community.zenoss.org/people/nilie] created the discussion

"How to troubleshoot empty graph, missing RRD files"

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Hello everybody,

I tried to setup monitoring an IP address using the Nagios check_ping plugin in Zenoss core v4.2 but graphs are showing NAN and no RRD has been created.

The data source seems to be correct, at least according to the attached screenshot and I'd like to know what else should I check in order to further troubleshoot this issue.
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[OneLoveAmaru]

OneLoveAmaru [http://community.zenoss.org/people/OneLoveAmaru] created the discussion

"Re: How to troubleshoot empty graph, missing RRD files"

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Did you set up a graph definition in your template?
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[nilie]

nilie [http://community.zenoss.org/people/nilie] created the discussion

"Re: How to troubleshoot empty graph, missing RRD files"

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Yes, for each of the two datapoints. I can see the graphs being created with the correct settings but no values are being shown and the summary indicates NAN. Also as I said in my original post, no RRD files are being created for this datasource. I suspect that either the check_ping command is not being executed at all or the values it returns are not correct which is less likely since I can test the datasource on the real target. Am I missing something else here ?

Thanks for your suggestion.
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[chitambira]

chitambira [http://community.zenoss.org/people/chitambira] created the discussion

"Re: How to troubleshoot empty graph, missing RRD files"

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Did you CREATE the graph points and CHOOSE (or highlight) the corresponnding data_point so that the two are linked? Its possible that you may not have selected a datapoint for the created graph point.
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[nilie]

nilie [http://community.zenoss.org/people/nilie] created the discussion

"Re: How to troubleshoot empty graph, missing RRD files"

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Thank you for your suggestion.

I double checked the graph definitions and the correct datapoints are being set as they should be.
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[rolfs]

rolfs [http://community.zenoss.org/people/rolfs] created the discussion

"Re: How to troubleshoot empty graph, missing RRD files"

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Try to run
zencommand run -v10 -d hostname

then search for check_ping and see what happens
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[nilie]

nilie [http://community.zenoss.org/people/nilie] created the discussion

"Re: How to troubleshoot empty graph, missing RRD files"

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I did as you suggested and here's the relevant part of the log :


2012-08-30 14:02:14,621 DEBUG zen.zencommand: Running $ZENHOME/libexec/check_ping
2012-08-30 14:02:18,720 DEBUG zen.zencommand: Datasource: ipcheck Received exit code: 0 Output:
'PING OK|LOSS=0 RTA=58.49 |rta=58.494999ms;180.000000;300.000000;0.000000 pl=0%;100;100;0\n'
2012-08-30 14:02:18,722 DEBUG zen.zencommand: Process NagiosCheckPing/ipcheck stopped (0), 4.06 seconds elapsed
2012-08-30 14:02:18,722 DEBUG zen.collector.scheduler: Task TRPREBONR01 300 Local changing state from FETCH_DATA to PARSING_DATA
2012-08-30 14:02:18,729 DEBUG zen.collector.scheduler: Task TRPREBONR01 300 Local changing state from PARSING_DATA to STORE_PERF_DATA
2012-08-30 14:02:18,730 DEBUG zen.zencommand: Queued event (total of 1) {'severity': 0, 'component': '', 'performanceData': ['rta=58.494999ms;180.000000;300.000000;0.000000 pl=0%;100;100;0'], 'eventKey': 'ipcheck', 'device': 'TRPREBONR01', 'message': 'PING OK|LOSS=0 RTA=58.49 |rta=58.494999ms;180.000000;300.000000;0.000000 pl=0%;100;100;0\n', 'summary': ['PING OK', 'LOSS=0 RTA=58.49 '], 'eventClass': '/Status/Ping'}
2012-08-30 14:02:18,730 DEBUG zen.collector.scheduler: Task TRPREBONR01 300 Local finished, result: [(<Products.ZenRRD.zencommand.Cmd instance at 0x6234e60>, ParsedResults
  events: [{'component': '',
  'device': 'TRPREBONR01',
  'eventClass': '/Status/Ping',
  'eventKey': 'ipcheck',
  'message': 'PING OK|LOSS=0 RTA=58.49 |rta=58.494999ms;180.000000;300.000000;0.000000 pl=0%;100;100;0\n',
  'performanceData': ['rta=58.494999ms;180.000000;300.000000;0.000000 pl=0%;100;100;0'],
  'severity': 0,
  'summary': ['PING OK', 'LOSS=0 RTA=58.49 ']}]
  values: []})]
2012-08-30 14:02:18,733 DEBUG zen.collector.scheduler: Task TRPREBONR01 300 Local changing state from STORE_PERF_DATA to IDLE
2012-08-30 14:02:18,733 INFO zen.zencommand: 1 devices processed (0 datapoints)
2012-08-30 14:02:18,733 INFO zen.collector.scheduler: Tasks: 2 Successful_Runs: 1 Failed_Runs: 0 Missed_Runs: 0 Queued_Tasks: 0 Running_Tasks: 1
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[rolfs]

rolfs [http://community.zenoss.org/people/rolfs] created the discussion

"Re: How to troubleshoot empty graph, missing RRD files"

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I don't have a upgraded 4.2 version available for testing.
Check that you have defined datapoints: LOSS, rta and pl ?
it says 0 datapoints on your output.

I was expecting (based on how it is in 3.2.0) some lines in the output to tell you that it saves data to a RRD file. How it is in 4.2.0, I'm not familar with yet.
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[nilie]

nilie [http://community.zenoss.org/people/nilie] created the discussion

"Re: How to troubleshoot empty graph, missing RRD files"

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Finally it seems the problem was with parsing of the output of check_ping command. I found this because I quit using the Nagios plugin and went with the Ping datasource instead, keeping the same graph definitions. It works great!

Thank you all for input.
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