Netflow: fatal error: runtime: out of memory about vflow HOT 9 CLOSED

pls give me more info:

• did you compile? Go version? what OS?
• device vendor(s)?
• messaging bus?
• hardware spec? dedicated or shared between other apps
• attach the fatal error details

from vflow.

Hi mehrdad,

1- yes i compile that, go version go1.8.3 linux/amd64 , ubuntu 16.04
2- Cisco netflow9
3- Kafka
4- VM, dedicate, 20 Core vcore + 16GB memory
5- https://pastebin.com/12iEidT8

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@franks231 I tried in my dev box and I couldn't duplicate this issue yet.

• can you check the vflow log file and send me if there is any logging
• can you try without the below configs:
  ipfix-enabled: false
  sflow-enabled: false
  dynamic-workers: false

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@mehrdadrad
i try without this 3 lines but vflow crash again

and this is a vflow sample logs

• unexpected EOF
• can not read the data
• can not read the data
• can not read the data
  [vflow] 2017/10/03 18:13:30 Multiple errors:
• can not read the data
• unexpected EOF
• can not read the data
• can not read the data
• can not read the data
• can not read the data
• can not read the data
  10.234.233.16 unknown netflow template id# 1536
• unexpected EOF
• can not read the data
• can not read the data
• can not read the data
  [vflow] 2017/10/03 18:14:11 Multiple errors:
• can not read the data
• unexpected EOF
• can not read the data
• can not read the data
• can not read the data
  [vflow] 2017/10/03 18:15:47 Multiple errors:
• can not read the data
• unexpected EOF
• can not read the data
• can not read the data
• can not read the data
• unexpected EOF
• can not read the data
• can not read the data
• can not read the data
• can not read the data
• can not read the data

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@franks231 What's Netflow version configured at router? can I have the configuration?

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@mehrdadrad netflow is version 9
I don't have access right now but I send the configuration asap

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Hello All, we have same error, config file:
ipfix-enabled: false
sflow-enabled: false
netflow9-enabled: true
ipfix-workers: 1
sflow-workers: 1
netflow9-workers: 5
netflow9-port: 10000
dynamic-workers: false
send to kafka topic.
Crash about every 5 minutes. Collect correct data in between.

vflow-netflow-log.txt
vflow-netflow-crash.txt

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@jan-zajic what's device vendor name? can you send me your device netflow 9 config?

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@jan-zajic I think it should be fixed based on the recent changes, pls try again and let me know if you still see this issue.

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