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influxdata / telegraf

Agent for collecting, processing, aggregating, and writing metrics, logs, and other arbitrary data.
https://influxdata.com/telegraf
MIT License
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Reverse DNS Processor should cache failed lookups #9204

Open loganmc10 opened 3 years ago

loganmc10 commented 3 years ago

Feature Request

@ssoroka

Proposal:

Currently, the reverse DNS processor only caches successful lookups. It should also cache failed lookups for a period of time

Current behavior:

Only successful lookups are cached

Desired behavior:

Failed lookups would also be cached so that it doesn't constantly try to lookup the same IP

Use case:

If a device sends a large amount of data to Telegraf, but the IP doesn't resolve using reverse lookup, Telegraf will try to resolve that IP every time a new message comes in. It should remember that it failed and only retry after a defined period of time.

luizribeiro commented 2 years ago

@loganmc10, why was this closed? Was this implemented? I'm interested on this too.

loganmc10 commented 2 years ago

My org just stopped doing DNS resolution in Telegraf, we just rely on the IPs for now, so it wasn't something we needed anymore, but I agree it would be useful. I'll re-open it since I know there are others looking for it