Prometheus Remote Storage

Prometheus can be configured to read from and write to remote storage, in addition to its local time series database. This is intended to support long-term storage of monitoring data. This article is published by MetricFire.com — try out our Hosted Prometheus on our 14-day free trial.

Remote read

When configured, Prometheus storage queries (e.g. via the HTTP API) are sent to both local and remote storage, and results are merged.

Note that to maintain reliability in the face of remote storage issues, alerting and recording rule evaluation use only the local TSDB.

Configuration

You configure the remote storage read path in the remote_read section of the Prometheus configuration file.

At its simplest, you will just specify the read endpoint URL for your remote storage, plus an authentication method. You can use either HTTP basic or bearer token authentication …

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