graph/rrd issues with 8.7b

[Andrew80k]

Running RH EL3.

I have a custom script that outputs a single value. I used the HowTo to create the Data Input Method, etc and the graph is created and data is gathered it appears properly. The cacti.log file shows the correct value being acquired by the poller:

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01/08/2009 07:05:03 PM - POLLER: Poller[0] CACTI2RRD: /usr/bin/rrdtool update /var/www/html/cacti/rra/sfpa-mot-03_concurrent_calls_36.rrd --template concurrent_calls 1231448702:4

The value of 4 is the correct returned value, but the value in the rrd file is something different:

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<!-- 2009-01-08 19:05:00 BRST / 1231448700 --> <row><v> 0.0000000000e+00 </v></row>

Can anyone offer any insight as to why this is occurring and how I go about fixing it?

TIA.

[gandalf]

Please see 2nd link of my sig for debugging
Reinhard

[Andrew80k]

Please see 2nd link of my sig for debugging
Reinhard

Been there, done that. Still not right.

[gandalf]

To be honest, this answer does not provide more useful information to go on. E.g. results from your steps would be appreciated
Reinhard

[Andrew80k]

To be honest, this answer does not provide more useful information to go on. E.g. results from your steps would be appreciated
Reinhard

Sorry, I'm a little frustrated.

It seems like the rrdtool is applying a scaling factor of some sort. Even though I still get zero's and NaN's. What do I need to give you to help you help me? It seems like the number given to the rrdtool from the poller is correct, but the number inside the .rrd file is not correct. Here is the "info" from the file. Maybe that will be useful.

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filename = "sfpa-mot-03_concurrent_calls_36.rrd"
rrd_version = "0001"
step = 300
last_update = 1231519502
ds[concurrent_calls].type = "COUNTER"
ds[concurrent_calls].minimal_heartbeat = 600
ds[concurrent_calls].min = 0.0000000000e+00
ds[concurrent_calls].max = 1.0000000000e+02
ds[concurrent_calls].last_ds = "8"
ds[concurrent_calls].value = 3.3333333333e-02
ds[concurrent_calls].unknown_sec = 0
rra[0].cf = "AVERAGE"
rra[0].rows = 500
rra[0].pdp_per_row = 1
rra[0].xff = 5.0000000000e-01
rra[0].cdp_prep[0].value = NaN
rra[0].cdp_prep[0].unknown_datapoints = 0
rra[1].cf = "AVERAGE"
rra[1].rows = 600
rra[1].pdp_per_row = 1
rra[1].xff = 5.0000000000e-01
rra[1].cdp_prep[0].value = NaN
rra[1].cdp_prep[0].unknown_datapoints = 0
rra[2].cf = "AVERAGE"
rra[2].rows = 700
rra[2].pdp_per_row = 6
rra[2].xff = 5.0000000000e-01
rra[2].cdp_prep[0].value = 2.6666666667e-02
rra[2].cdp_prep[0].unknown_datapoints = 1
rra[3].cf = "AVERAGE"
rra[3].rows = 775
rra[3].pdp_per_row = 24
rra[3].xff = 5.0000000000e-01
rra[3].cdp_prep[0].value = 5.6655666298e-02
rra[3].cdp_prep[0].unknown_datapoints = 1
rra[4].cf = "AVERAGE"
rra[4].rows = 797
rra[4].pdp_per_row = 288
rra[4].xff = 5.0000000000e-01
rra[4].cdp_prep[0].value = 5.8007907693e-01
rra[4].cdp_prep[0].unknown_datapoints = 10
rra[5].cf = "MAX"
rra[5].rows = 500
rra[5].pdp_per_row = 1
rra[5].xff = 5.0000000000e-01
rra[5].cdp_prep[0].value = NaN
rra[5].cdp_prep[0].unknown_datapoints = 0
rra[6].cf = "MAX"
rra[6].rows = 600
rra[6].pdp_per_row = 1
rra[6].xff = 5.0000000000e-01
rra[6].cdp_prep[0].value = NaN
rra[6].cdp_prep[0].unknown_datapoints = 0
rra[7].cf = "MAX"
rra[7].rows = 700
rra[7].pdp_per_row = 6
rra[7].xff = 5.0000000000e-01
rra[7].cdp_prep[0].value = 1.6666666667e-02
rra[7].cdp_prep[0].unknown_datapoints = 1
rra[8].cf = "MAX"
rra[8].rows = 775
rra[8].pdp_per_row = 24
rra[8].xff = 5.0000000000e-01
rra[8].cdp_prep[0].value = 1.6666666667e-02
rra[8].cdp_prep[0].unknown_datapoints = 1
rra[9].cf = "MAX"
rra[9].rows = 797
rra[9].pdp_per_row = 288
rra[9].xff = 5.0000000000e-01
rra[9].cdp_prep[0].value = 2.3333333333e-02
rra[9].cdp_prep[0].unknown_datapoints = 10

Thanks.

[Andrew80k]

I think I finally figured it out myself.

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ds[concurrent_calls].type = "COUNTER" 

type should have been GAUGE. Not sure why, but I'm sure if I read more of the docs on rrdtool, I'll find out.

[gandalf]

Good hit!
Please read e.g. 1st link of my sig for some intro.
And, one caveat: Your rrdtool settings for that file are wrong. You shouldn't have selected the first rra entry when creating the data template.
I assume you're collecting data every 5 min?
Reinhard