I am getting warnings in the logstash logs that it cant export to elasticsearch. This is probably an issue with a template, but I don't know where to start troubleshooting or which application the problem is actually with. The warning is regarding GeoIP postal codes, and what look like canadian postal codes it fails to parse.
The output does include a postal_code mapping. I dont need postal codes, can that be removed or do I need to change the type? Either way, how can I modify this?
If you don't want the field at all, then use mutate+remove field.
If you want to remove it from the template, then you are better off fixing the underlying issue, which is a bit more involved.
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