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Documentation Grafana Agent Flow mode Reference Components reference prometheus.exporter.redis

prometheus.exporter.redis

The prometheus.exporter.redis component embeds redis_exporter for collecting metrics from a Redis database.

Usage

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prometheus.exporter.redis "LABEL" {
    redis_addr = REDIS_ADDRESS
}

Arguments

The following arguments can be used to configure the exporter’s behavior. Omitted fields take their default values.

If redis_password_file is defined, it will take precedence over redis_password.

When check_key_groups is not set, no key groups are made.

The check_key_groups_batch_size argument name reflects key groups for backwards compatibility, but applies to both key and key groups.

The script_path argument may also be specified as a comma-separated string of paths, though it is encouraged to use script_paths when using multiple Lua scripts.

Any leftover key groups beyond max_distinct_key_groups are aggregated in the ‘overflow’ bucket.

The is_cluster argument must be set to true when connecting to a Redis cluster and using either of the check_keys and check_single_keys arguments.

Note that setting export_client_port increases the cardinality of all Redis metrics.

Exported fields

The following fields are exported and can be referenced by other components.

For example, the targets can either be passed to a discovery.relabel component to rewrite the targets’ label sets, or to a prometheus.scrape component that collects the exposed metrics.

The exported targets will use the configured in-memory traffic address specified by the run command.

Component health

prometheus.exporter.redis is only reported as unhealthy if given an invalid configuration. In those cases, exported fields retain their last healthy values.

Debug information

prometheus.exporter.redis does not expose any component-specific debug information.

Debug metrics

prometheus.exporter.redis does not expose any component-specific debug metrics.

Example

This example uses a prometheus.scrape component to collect metrics from prometheus.exporter.redis:

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prometheus.exporter.redis "example" {
  redis_addr = "localhost:6379"
}

// Configure a prometheus.scrape component to collect Redis metrics.
prometheus.scrape "demo" {
  targets    = prometheus.exporter.redis.example.targets
  forward_to = [prometheus.remote_write.demo.receiver]
}

prometheus.remote_write "demo" {
  endpoint {
    url = PROMETHEUS_REMOTE_WRITE_URL

    basic_auth {
      username = USERNAME
      password = PASSWORD
    }
  }
}

Replace the following:

• PROMETHEUS_REMOTE_WRITE_URL: The URL of the Prometheus remote_write-compatible server to send metrics to.
• USERNAME: The username to use for authentication to the remote_write API.
• PASSWORD: The password to use for authentication to the remote_write API.