Ensure the following while creating grok patterns:
- Grok pattern name must be less than 50 characters and should not be empty.
- Grok pattern name must not contain special characters.
- Grok pattern must be less than 400 chars and should not be empty. It can include special characters.
Note: If you do not enter a valid grok pattern name or pattern, you will get an error that you must enter a valid one as in the following screen.
Refer to https://grokdebugger.com/ for debugging grok patterns.