Metric Graylog node for kafka input

Hello,

I want to monitor metric from kafka consumer group.

My understanding is that when i configure syslog kafka input, graylog automaticaly create a consumer group.

So i check in metric provide by graylog node and by filtering with “kafka” keyword.

But i don’t see a specific metric i want : lag from this consumer group.

Someone already have been this problem ?

Thank for reading.

AdrienS