disable local storage with Prometheus 2

[Florin Andrei]

Is there a way to completely disable local storage with Prometheus 2?

There used to be an option --storage.local.engine, and the value none used to disable local storage, but with v2 I get this:

Error parsing commandline arguments: unknown long flag '--storage.local.engine'

prometheus: error: unknown long flag '--storage.local.engine'

I use remote read/write with InfluxDB and writing locally is a waste of resources.

[Julien Pivotto]

Hello,

It is not possible to disable local storage with prometheus 2.
Even remote write now tails the local storage, IIRC.

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[Florin Andrei]

What are some ways to minimize the impact of local storage - in terms of both disk space and disk I/O?

I'm thinking to reduce --storage.tsdb.retention.time - what would be a safe low value? 2h?

Keep the local storage in /dev/shm?

[Brian Candler]

If you want a completely dumb scraper that doesn't store anything locally, VictoriaMetrics just released vmagent which does exactly that:

https://github.com/VictoriaMetrics/VictoriaMetrics/blob/master/app/vmagent/README.md