Telegraf log showing "Error in plugin: metric parse error: expected field at"

Telegraf
1

The python script will print the following line protocol output

NPM_Port,Network=n1,Name=port1,Device_Category=Firewall,Tstatus=Up status=“Up”,inUtil=0.0000,outUtil=0.0000,number=3i,type=“Ethernet”,speed=10000000000.0000,mtu=1500i,InBandwidth=10000000000.0000,OutBandwidth=10000000000.0000,outBps=263.9062,inBps=505.8402,bps=769.7463,outPps=0.7633,inPps=0.8366,inPktSize=76.0000,outPktSize=43.0000,outUcastPps=0.0100,outMcastPps=0.7533,inUcastPps=0.0067,inMcastPps=0.8300 1671528569000000000

Using influx -import -path=datarrr.txt -precision=ns to import manually has no issues.

However using telegraf exe plugin to run the script will result in the following error
Error in plugin: metric parse error: expected field at

Checked the telegraf log,
the auto generated output by telegraf seem to be the following
NPM_Port,Network=n1,Name=port1,Device_Category=Firewall,Tstatus=Up status=\ “Up”,mtu=1500i,InBandwidth=2000000000.0000,OutBandwidth=2000000000.0000,outBps=2050.1516,inBps=2107.7522,bps=4157.9040,outPps=2.0667,inPps=2.1867,inPktSize=120.0000,outPktSize=124.0000,outUcastPps=2.0667,outMcastPps=0.0000,inUcastPps=2.1200,inMcastPps=0.0667 1671527674000000000

Seem like \ is causing the issues.
status= \ “Up”

How do I resolve this? Do I need to change the telegraf settings?
I have tried changing the data_format from “influx” to “value” but to no avail.

2

Hello @khaleef,
Yes my guess is that your python script is inserting a space. Can you check your python script to see if that’s the case? Maybe using print (string.isspace())?
Thank you.

3

Hi thanks for replying,

The telegraf complained output is status=backslash"Up"
i cant seem to post \ without the space in forum as such i added the space in between the status=\space"Up". the actually telegraf complained output is without the space.

I will try checking using the function isspace()

Background info: no metric error using telegraf 1.5 however 1.6…1.24 onwards complained of this metric issue

Updates:
Found that the double quote and the telegraf parser having issues

4

Seem like string field value “” will get converted to

backslash" in telegraf and influxdb will complain of metric issues.

anyone have a solution for this?