collector

package

v0.12.0-rc.0 Latest Latest Go to latest Published: Aug 29, 2022 License: Apache-2.0 Imports: 11 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, db *sql.DB, 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, db *sql.DB, ch chan<- prometheus.Metric) error

type PGStatBGWriterCollector struct {
}

func (PGStatBGWriterCollector) Update(ctx context.Context, db *sql.DB, 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, dsn 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.

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

func NewProbeCollector(logger log.Logger, registry *prometheus.Registry, dsn string) (*ProbeCollector, error)

func (pc *ProbeCollector) Collect(ch chan<- prometheus.Metric)

func (pc *ProbeCollector) Describe(ch chan<- *prometheus.Desc)