SNMP - Translating Numeric OIDs

[Foggy2]

Bug report

Relevant telegraf.conf:

[[inputs.snmp]]
   agents = ["x.x.x.x"]
   version = 2
   community = "public"
   interval = "15s"
   name = "test"
   [[inputs.snmp.field]]
     name = "hostname"
     oid = ".1.3.6.1.2.1.1.5.0"
     is_tag = true
   [[inputs.snmp.table]]
     name = "cisco_ap"
     inherit_tags = ["hostname"]
   [[inputs.snmp.table.field]]
	 name = "cLApName"
	 oid = ".1.3.6.1.4.1.9.9.513.1.1.1.1.5"
	 is_tag = true
   [[inputs.snmp.table.field]]
	 name = "cLApLocation"
	 oid = ".1.3.6.1.4.1.9.9.513.1.1.1.1.49"
	 is_tag = true
   [[inputs.snmp.table.field]]
	 name = "cLApAssociatedClientCount"
	 oid = ".1.3.6.1.4.1.9.9.513.1.1.1.1.54"
	 
	 [[inputs.snmp.table]]
     name = "cisco_apInterface"
     inherit_tags = ["hostname"]
   [[inputs.snmp.table.field]]
	 name = "cLApDot11RadioMACAddress"
	 oid = ".1.3.6.1.4.1.9.9.513.1.2.3.1.1"
	 is_tag = true
	 conversion = "hwaddr"
   [[inputs.snmp.table.field]]
	 name = "cLApDot11IfType"
	 oid = ".1.3.6.1.4.1.9.9.513.1.2.1.1.2"
	 is_tag = true
   [[inputs.snmp.table.field]]
	 name = "cLApDot11IfAdminStatus"
	 oid = ".1.3.6.1.4.1.9.9.513.1.2.1.1.14"
   [[inputs.snmp.table.field]]
	 name = "clExtApDot11RadioStatsRxByteCount"
	 oid = ".1.3.6.1.4.1.9.9.9998.1.1.3.2.1.4"

# Interfaces (IF-mib)
[[inputs.snmp]]
  agents = ["x.x.x.x"]
  version = 2
  community = "public"
  interval = "15s"
  name = "interfaceStats"
  [[inputs.snmp.field]]
    name = "hostname"
    oid = ".1.3.6.1.2.1.1.5.0"
    is_tag = true
  [[inputs.snmp.table]]
    name = "interfaceStats"
    inherit_tags = ["hostname"]
  [inputs.snmp.tagdrop]
    ifAlias = [""]
  [[inputs.snmp.table.field]]
	name = "ifAlias"
	oid = ".1.3.6.1.2.1.31.1.1.1.18"
	is_tag = true
  [[inputs.snmp.table.field]]
	name = "ifName"
	oid = ".1.3.6.1.2.1.31.1.1.1.1"
	is_tag = true
  [[inputs.snmp.table.field]]
	name = "ifType"
	oid = ".1.3.6.1.2.1.2.2.1.3"
  [[inputs.snmp.table.field]]
	name = "ifAdminStatus"
	oid = ".1.3.6.1.2.1.2.2.1.7"
  [[inputs.snmp.table.field]]
	name = "ifOperStatus"
	oid = ".1.3.6.1.2.1.2.2.1.8"
  [[inputs.snmp.table.field]]
	name = "ifHighSpeed"
	oid = ".1.3.6.1.2.1.31.1.1.1.15"
  [[inputs.snmp.table.field]]
	name = "ifLastChange"
	oid = ".1.3.6.1.2.1.2.2.1.9"
  [[inputs.snmp.table.field]]
	name = "ifHCInOctets"
	oid = ".1.3.6.1.2.1.31.1.1.1.6"
  [[inputs.snmp.table.field]]
	name = "ifHCOutOctets"
	oid = ".1.3.6.1.2.1.31.1.1.1.10"
  [[inputs.snmp.table.field]]
	name = "ifHCInUcastPkts"
	oid = ".1.3.6.1.2.1.31.1.1.1.7"
  [[inputs.snmp.table.field]]
	name = "ifHCOutUcastPkts"
	oid = ".1.3.6.1.2.1.31.1.1.1.11"
  [[inputs.snmp.table.field]]
    name = "ifInErrors"
	oid = ".1.3.6.1.2.1.2.2.1.14"
  [[inputs.snmp.table.field]]
	name = "ifOutErrors"
	oid = ".1.3.6.1.2.1.2.2.1.20"
  [[inputs.snmp.table.field]]
    name = "ifInDiscards"
	oid = ".1.3.6.1.2.1.2.2.1.13"
  [[inputs.snmp.table.field]]
	name = "ifOutDiscards"
	oid = ".1.3.6.1.2.1.2.2.1.19"
  [[inputs.snmp.table.field]]
    name = "ifInUnknownProtos"
	oid = ".1.3.6.1.2.1.2.2.1.15"
  [[inputs.snmp.table.field]]
	name = "ifHCInMulticastPkts"
	oid = ".1.3.6.1.2.1.31.1.1.1.8"
  [[inputs.snmp.table.field]]
	name = "ifHCOutMulticastkts"
	oid = ".1.3.6.1.2.1.31.1.1.1.12"
  [[inputs.snmp.table.field]]
	name = "ifHCInBroadcastPkts"
	oid = ".1.3.6.1.2.1.31.1.1.1.9"
  [[inputs.snmp.table.field]]
	name = "ifHCOutBroadcastPkts"
	oid = ".1.3.6.1.2.1.31.1.1.1.13"

System info:

Telegraf 1.1.0~rc1 on both Windows 7 x64 and Centos 7 x64 - Both systems had identical behavior

Steps to reproduce:

1. ... Query SNMP with version 1.1.0~rc1
2. ...

Expected behavior:

The numeric OIDs are already in the correct format and do not require translating.

Actual behavior:

The below is output to the console indicating that SNMP is attempting to translate the numeric OIDs.
2016/11/07 20:27:56 I! Using config file: C:\Program Files\Telegraf\telegraf.conf 2016/11/07 20:27:56 I! Starting Telegraf (version 1.1.0~rc1) 2016/11/07 20:27:56 I! Loaded outputs: influxdb 2016/11/07 20:27:56 I! Loaded inputs: inputs.snmp 2016/11/07 20:27:56 I! Tags enabled: host=MBN00155D482B06 2016/11/07 20:27:56 I! Agent Config: Interval:10s, Quiet:false, Hostname:"MBN00155D482B06", Flush Interval:10s 2016/11/07 20:28:00 E! ERROR in input [inputs.snmp]: translating .1.3.6.1.4.1.9.9.513.1.1.1.1.5: exec: "snmptranslate": executable file not found in %PATH%

Additional info:

Have tried a known working config from version 1.0.1 and the same behavior is exhibited.
Edit: included the known working config as that queries common interface data from the standard if-MIB.

[phemmer]

Yeah, this is a bug. I think this may be a regression, as I could have sworn I made the snmptranslate command not get called if all the required info was provided.
Will take a look and get this fixed.