collector

package

v0.11.0 Latest Latest Go to latest Published: Jul 28, 2022 License: Apache-2.0 Imports: 12 Imported by: 1

Documentation ¶

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var ErrNoData = errors.New("collector returned no data")

ErrNoData indicates the collector found no data to collect, but had no other error.

func IsNoDataError(err error) bool

type Collector interface {
	Update(ctx context.Context, server *server, ch chan<- prometheus.Metric) error
}

func NewPGDatabaseCollector(logger log.Logger) (Collector, error)

func NewPGStatBGWriterCollector(logger log.Logger) (Collector, error)

type Option func(*PostgresCollector) error

type PGDatabaseCollector struct {
	// contains filtered or unexported fields
}

func (PGDatabaseCollector) Update(ctx context.Context, server *server, ch chan<- prometheus.Metric) error

type PGStatBGWriterCollector struct {
}

func (PGStatBGWriterCollector) Update(ctx context.Context, server *server, ch chan<- prometheus.Metric) error

type PostgresCollector struct {
	Collectors map[string]Collector
	// contains filtered or unexported fields
}

PostgresCollector implements the prometheus.Collector interface.

func NewPostgresCollector(logger log.Logger, dsns []string, filters []string, options ...Option) (*PostgresCollector, error)

NewPostgresCollector creates a new PostgresCollector.

func (p PostgresCollector) Collect(ch chan<- prometheus.Metric)

Collect implements the prometheus.Collector interface.

func (p PostgresCollector) Describe(ch chan<- *prometheus.Desc)

Describe implements the prometheus.Collector interface.