CreateMetricsReader instantiates a new Reader.

CreateMetricsWriter instantiates a MetricsWriter.

NewCollector creates a new collector for retrieving sql activity from the internal CRDB tables.

ReadConfig reads yaml configuration from a file.

TranslateHistogram translates the HDR Histogram into a Log10 linear histogram.

BucketConfig defines the config parameters for each histogram bucket * Bins: the number of linear buckets for each log10 bucket * Startns: The lower range in nanoseconds.

Collector queries the database to collect custom metrics.

Config has the configuration for the metrics-exporter * Bucket: Log10 Bucket Configuration * Port: Port that the export is listening to * Tls: optional Tls configuration * Url: CockroachDB Prometheus endpoint.

Custom provides the configuration to retrieve custom metrics.

MetricsReader reads the metrics from a CockroachDB endpoint (/_status/var).

MetricsWriter write metrics, after transforming them based on the configuration supplied.

TLSClientContext is the context for TLS connections.

TLSConfig Configuration * Ca: CA certificate file location * Certificate: X.509 certificate for the server * Host: Host name associated with X.509 certificate.