mapping table on snmp plugin use only first number to match

[Truji]

I'm using the mapping_table but looks like that is matching only with the first number of ifIndex value.
All instances are the same if the ifIndex value starts with the same number.

Example:

ifIndex,host=testing.lan,instance=dsc ifIndex=542i 1459782103301846509
ifIndex,host=testing.lan,instance=dsc ifIndex=5i 1459782103304193032
ifIndex,host=testing.lan,instance=dsc ifIndex=521i 1459782103313242647

Only ifIndex=5 is true: IF-MIB::ifDescr.5 = STRING: dsc

ifIndex,host=testing.lan,instance=lo0 ifIndex=607i 1459782408362813308
ifIndex,host=testing.lan,instance=lo0 ifIndex=6i 1459782408380025023
ifIndex,host=testing.lan,instance=lo0 ifIndex=604i 1459782408381047861

Only ifIndex=6 is true: IF-MIB::ifDescr.6 = STRING: lo0

[titilambert]

Hello !
Could you give me your configuration ?
Thanks !

[Truji]

Yes, sorry.

[[outputs.influxdb]]

[[inputs.snmp]] 
  snmptranslate_file = "/etc/telegraf/oids.txt"
  [[inputs.snmp.host]]
    address = "testing.lan:161"
    community = "public" # default public
    version = 2 # default 2
    timeout = 2.0 # default 2.0
    retries = 2 # default 2
    [[inputs.snmp.host.table]]
      name = "iftable1"
      include_instances = []
  [[inputs.snmp.table]]
    name = "iftable1"
    mapping_table =".1.3.6.1.2.1.2.2.1.2"
    sub_tables=[".1.3.6.1.2.1.2.2.1.1"]

[titilambert]

Thanks !
Could you run a snmpwalk on .1.3.6.1.2.1.2.2.1.1 and .1.3.6.1.2.1.2.2.1.2 ?

[Truji]

Attached, we have a few interfaces.

1.3.6.1.2.1.2.2.1.1.txt
1.3.6.1.2.1.2.2.1.2.txt

[Truji]

Hi, I looked again this and I can't see a pattern about. The problem is tagging the output, because if I use the include_instance the plugin filter correctly.

And is not happening every time, as you can see here:

root@evee:# telegraf -config /etc/telegraf/telegraf.conf -test | grep 563i
ifIndex,host=testing.lan,instance=dsc ifIndex=563i 1459802458842428140
root@evee:# telegraf -config /etc/telegraf/telegraf.conf -test | grep 563i
ifIndex,host=testing.lan,instance=pe-0/1/10 ifIndex=563i 1459802460241818426

[titilambert]

This seems related to #1043

[sparrc]

this is now available in 1.0 RC 1 with the new SNMP plugin, please see here to download the latest version: https://github.com/influxdata/telegraf#linux-deb-and-rpm-packages, and the changelog for details on the new SNMP plugin.