Support Questions

Find answers, ask questions, and share your expertise

Nifi ExtractGrok Processor

avatar
New Contributor

I've been slowly ramping up with Nifi, and am trying to find some information on the ExtractGrok processor. I can't seem to find any actual examples anywhere on it's use and everything I'm trying is failing.

Specifically, I can't figure out exactly what to provide for the grok Expression vs the grok Pattern file; they would seem to be the kind of thing you'd provide one or the other but it wants both.

I'm simply trying to pull a few fields out of a log message (and there may be better ways to do it long term) but I'm really curious about how to make this processor work.

Does anyone have a real example of it's use I could reference?

1 ACCEPTED SOLUTION

avatar
Master Guru

There is also a GrokReader for record processors, and the additional details docs of that has the default pattern's it uses.

See the end of this page:

https://nifi.apache.org/docs/nifi-docs/components/org.apache.nifi/nifi-record-serialization-services...

View solution in original post

1 REPLY 1

avatar
Master Guru

There is also a GrokReader for record processors, and the additional details docs of that has the default pattern's it uses.

See the end of this page:

https://nifi.apache.org/docs/nifi-docs/components/org.apache.nifi/nifi-record-serialization-services...