problem with collection data via snmp extend

Hi!


I have the problem that ONMS doesn't collect data provided by snmp extend.

RRD files are created but filled with NaN values instead of real values. The only hint I found is this log: 

2017-08-01 11:52:51,717 INFO [Collectd-Thread-41-of-50] o.o.n.c.p.r.RrdPersistOperationBuilder: updateRRD: updating RRD file /var/lib/opennms/rrd/snmp/fs/IT/rmvm056/YExRateRemain.rrd with values '1501581172:U'

As we discussed on Mattermost the :U should stand for UNKNOWN.

But what does this mean?


Here some information.

The snmpwalk which provides the values I want to collect:

.1.3.6.1.4.1.8072.1.3.2.1.0 = INTEGER: 5
.1.3.6.1.4.1.8072.1.3.2.2.1.2.6.114.101.98.111.111.116 = STRING: /bin/bash
.1.3.6.1.4.1.8072.1.3.2.2.1.2.10.110.116.112.113.95.100.101.108.97.121 = STRING: /usr/local/bin/ntpwatch delay
.1.3.6.1.4.1.8072.1.3.2.2.1.2.11.110.116.112.113.95.106.105.116.116.101.114 = STRING: /usr/local/bin/ntpwatch jitter
.1.3.6.1.4.1.8072.1.3.2.2.1.2.11.110.116.112.113.95.111.102.102.115.101.116 = STRING: /usr/local/bin/ntpwatch offset
.1.3.6.1.4.1.8072.1.3.2.2.1.2.13.89.69.120.82.97.116.101.82.101.109.97.105.110 = STRING: /usr/local/bin/getGithubRateLimitRemaining.sh
.1.3.6.1.4.1.8072.1.3.2.2.1.3.6.114.101.98.111.111.116 = STRING: -c 'if [ -e /var/run/reboot-required ]; then echo \"1\"; else echo \"0\"; fi'
.1.3.6.1.4.1.8072.1.3.2.2.1.3.10.110.116.112.113.95.100.101.108.97.121 = STRING:
.1.3.6.1.4.1.8072.1.3.2.2.1.3.11.110.116.112.113.95.106.105.116.116.101.114 = STRING:
.1.3.6.1.4.1.8072.1.3.2.2.1.3.11.110.116.112.113.95.111.102.102.115.101.116 = STRING:
.1.3.6.1.4.1.8072.1.3.2.2.1.3.13.89.69.120.82.97.116.101.82.101.109.97.105.110 = STRING:
.1.3.6.1.4.1.8072.1.3.2.2.1.4.6.114.101.98.111.111.116 = STRING:
.1.3.6.1.4.1.8072.1.3.2.2.1.4.10.110.116.112.113.95.100.101.108.97.121 = STRING:
.1.3.6.1.4.1.8072.1.3.2.2.1.4.11.110.116.112.113.95.106.105.116.116.101.114 = STRING:
.1.3.6.1.4.1.8072.1.3.2.2.1.4.11.110.116.112.113.95.111.102.102.115.101.116 = STRING:
.1.3.6.1.4.1.8072.1.3.2.2.1.4.13.89.69.120.82.97.116.101.82.101.109.97.105.110 = STRING:
.1.3.6.1.4.1.8072.1.3.2.2.1.5.6.114.101.98.111.111.116 = INTEGER: 5
.1.3.6.1.4.1.8072.1.3.2.2.1.5.10.110.116.112.113.95.100.101.108.97.121 = INTEGER: 5
.1.3.6.1.4.1.8072.1.3.2.2.1.5.11.110.116.112.113.95.106.105.116.116.101.114 = INTEGER: 5
.1.3.6.1.4.1.8072.1.3.2.2.1.5.11.110.116.112.113.95.111.102.102.115.101.116 = INTEGER: 5
.1.3.6.1.4.1.8072.1.3.2.2.1.5.13.89.69.120.82.97.116.101.82.101.109.97.105.110 = INTEGER: 5
.1.3.6.1.4.1.8072.1.3.2.2.1.6.6.114.101.98.111.111.116 = INTEGER: exec(1)
.1.3.6.1.4.1.8072.1.3.2.2.1.6.10.110.116.112.113.95.100.101.108.97.121 = INTEGER: exec(1)
.1.3.6.1.4.1.8072.1.3.2.2.1.6.11.110.116.112.113.95.106.105.116.116.101.114 = INTEGER: exec(1)
.1.3.6.1.4.1.8072.1.3.2.2.1.6.11.110.116.112.113.95.111.102.102.115.101.116 = INTEGER: exec(1)
.1.3.6.1.4.1.8072.1.3.2.2.1.6.13.89.69.120.82.97.116.101.82.101.109.97.105.110 = INTEGER: exec(1)
.1.3.6.1.4.1.8072.1.3.2.2.1.7.6.114.101.98.111.111.116 = INTEGER: run-on-read(1)
.1.3.6.1.4.1.8072.1.3.2.2.1.7.10.110.116.112.113.95.100.101.108.97.121 = INTEGER: run-on-read(1)
.1.3.6.1.4.1.8072.1.3.2.2.1.7.11.110.116.112.113.95.106.105.116.116.101.114 = INTEGER: run-on-read(1)
.1.3.6.1.4.1.8072.1.3.2.2.1.7.11.110.116.112.113.95.111.102.102.115.101.116 = INTEGER: run-on-read(1)
.1.3.6.1.4.1.8072.1.3.2.2.1.7.13.89.69.120.82.97.116.101.82.101.109.97.105.110 = INTEGER: run-on-read(1)
.1.3.6.1.4.1.8072.1.3.2.2.1.20.6.114.101.98.111.111.116 = INTEGER: permanent(4)
.1.3.6.1.4.1.8072.1.3.2.2.1.20.10.110.116.112.113.95.100.101.108.97.121 = INTEGER: permanent(4)
.1.3.6.1.4.1.8072.1.3.2.2.1.20.11.110.116.112.113.95.106.105.116.116.101.114 = INTEGER: permanent(4)
.1.3.6.1.4.1.8072.1.3.2.2.1.20.11.110.116.112.113.95.111.102.102.115.101.116 = INTEGER: permanent(4)
.1.3.6.1.4.1.8072.1.3.2.2.1.20.13.89.69.120.82.97.116.101.82.101.109.97.105.110 = INTEGER: permanent(4)
.1.3.6.1.4.1.8072.1.3.2.2.1.21.6.114.101.98.111.111.116 = INTEGER: active(1)
.1.3.6.1.4.1.8072.1.3.2.2.1.21.10.110.116.112.113.95.100.101.108.97.121 = INTEGER: active(1)
.1.3.6.1.4.1.8072.1.3.2.2.1.21.11.110.116.112.113.95.106.105.116.116.101.114 = INTEGER: active(1)
.1.3.6.1.4.1.8072.1.3.2.2.1.21.11.110.116.112.113.95.111.102.102.115.101.116 = INTEGER: active(1)
.1.3.6.1.4.1.8072.1.3.2.2.1.21.13.89.69.120.82.97.116.101.82.101.109.97.105.110 = INTEGER: active(1)
.1.3.6.1.4.1.8072.1.3.2.3.1.1.6.114.101.98.111.111.116 = STRING: 0
.1.3.6.1.4.1.8072.1.3.2.3.1.1.10.110.116.112.113.95.100.101.108.97.121 = STRING: 3681
.1.3.6.1.4.1.8072.1.3.2.3.1.1.11.110.116.112.113.95.106.105.116.116.101.114 = STRING: 1886
.1.3.6.1.4.1.8072.1.3.2.3.1.1.11.110.116.112.113.95.111.102.102.115.101.116 = STRING: 908
.1.3.6.1.4.1.8072.1.3.2.3.1.1.13.89.69.120.82.97.116.101.82.101.109.97.105.110 = STRING: 4687
.1.3.6.1.4.1.8072.1.3.2.3.1.2.6.114.101.98.111.111.116 = STRING: 0
.1.3.6.1.4.1.8072.1.3.2.3.1.2.10.110.116.112.113.95.100.101.108.97.121 = STRING: 3681
.1.3.6.1.4.1.8072.1.3.2.3.1.2.11.110.116.112.113.95.106.105.116.116.101.114 = STRING: 1886
.1.3.6.1.4.1.8072.1.3.2.3.1.2.11.110.116.112.113.95.111.102.102.115.101.116 = STRING: 908
.1.3.6.1.4.1.8072.1.3.2.3.1.2.13.89.69.120.82.97.116.101.82.101.109.97.105.110 = STRING: 4687
.1.3.6.1.4.1.8072.1.3.2.3.1.3.6.114.101.98.111.111.116 = INTEGER: 1
.1.3.6.1.4.1.8072.1.3.2.3.1.3.10.110.116.112.113.95.100.101.108.97.121 = INTEGER: 1
.1.3.6.1.4.1.8072.1.3.2.3.1.3.11.110.116.112.113.95.106.105.116.116.101.114 = INTEGER: 1
.1.3.6.1.4.1.8072.1.3.2.3.1.3.11.110.116.112.113.95.111.102.102.115.101.116 = INTEGER: 1
.1.3.6.1.4.1.8072.1.3.2.3.1.3.13.89.69.120.82.97.116.101.82.101.109.97.105.110 = INTEGER: 1
.1.3.6.1.4.1.8072.1.3.2.3.1.4.6.114.101.98.111.111.116 = INTEGER: 0
.1.3.6.1.4.1.8072.1.3.2.3.1.4.10.110.116.112.113.95.100.101.108.97.121 = INTEGER: 0
.1.3.6.1.4.1.8072.1.3.2.3.1.4.11.110.116.112.113.95.106.105.116.116.101.114 = INTEGER: 0
.1.3.6.1.4.1.8072.1.3.2.3.1.4.11.110.116.112.113.95.111.102.102.115.101.116 = INTEGER: 0
.1.3.6.1.4.1.8072.1.3.2.3.1.4.13.89.69.120.82.97.116.101.82.101.109.97.105.110 = INTEGER: 0
.1.3.6.1.4.1.8072.1.3.2.4.1.2.6.114.101.98.111.111.116.1 = STRING: 0
.1.3.6.1.4.1.8072.1.3.2.4.1.2.10.110.116.112.113.95.100.101.108.97.121.1 = STRING: 3681
.1.3.6.1.4.1.8072.1.3.2.4.1.2.11.110.116.112.113.95.106.105.116.116.101.114.1 = STRING: 1886
.1.3.6.1.4.1.8072.1.3.2.4.1.2.11.110.116.112.113.95.111.102.102.115.101.116.1 = STRING: 908
.1.3.6.1.4.1.8072.1.3.2.4.1.2.13.89.69.120.82.97.116.101.82.101.109.97.105.110.1 = STRING: 4687


The oid to collect is .1.3.6.1.4.1.8072.1.3.2.3.1.2.13.89.69.120.82.97.116.101.82.101.109.97.105.110 (value = 4687)


So the datacollection config looks like:

<?xml version="1.0"?>
<datacollection-group name="Github">
 <group name="github" ifType="ignore"> 
   <mibObj oid=".1.3.6.1.4.1.8072.1.3.2.2.1.2.13.89.69.120.82.97.116.101.82.101.109.97.105" instance="110" alias="YExRateRemain" type="octetstring" />
  </group>
<systemDef name="Github">
  <sysoidMask>.1.3.6.1.4.1.8072.</sysoidMask>
  <collect>
    <includeGroup>github</includeGroup>
  </collect>
</systemDef>
</datacollection-group>


datacollection-config.xml has an "Github" entry.


Because this datacollection works fine https://github.com/opennms-config-modules/ntp/blob/master/datacollection/netsnmp-ntp.xml I tried to adapt it for my case. But mine doesn't work... :-/


I already tried a lot:

* changed type to octetstring, integer

* iType all and ignore

* ONMS v20.0.1 and 19.0.1

* Tried other sysDef and group names

* also tried to collect 

.1.3.6.1.4.1.8072.1.3.2.4.1.2.13.89.69.120.82.97.116.101.82.101.109.97.105.110.1 = STRING: 4687

with

   <mibObj oid=".1.3.6.1.4.1.8072.1.3.2.2.1.2.13.89.69.120.82.97.116.101.82.101.109.97.105.101" instance="1" alias="YExRateRemain" type="octetstring" />

but in this case no RRD file was created.


Thanks for feedback!

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