collector

package
v0.3.1 Latest Latest
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 Go to latest Published: Jun 21, 2022 License: MIT Imports: 15 Imported by: 0

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Variables

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Functions

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Types

type Exporter 

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

Exporter collects MySQL metrics. It implements prometheus.Collector.

func New 

func New(ctx context.Context, pgoptions []pgdriver.Option, metrics Metrics, scrapers []Scraper) *Exporter

New returns a PostgreSQL exporter for the provided DSN.

func (*Exporter) Collect 

func (e *Exporter) Collect(ch chan<- prometheus.Metric)

Collect implements prometheus.Collector.

func (*Exporter) Describe 

func (e *Exporter) Describe(ch chan<- *prometheus.Desc)

Describe implements prometheus.Collector.

type Metrics 

type Metrics struct {
	TotalScrapes prometheus.Counter
	ScrapeErrors *prometheus.CounterVec
	Error        prometheus.Gauge
	PgSQLUp      prometheus.Gauge
}

Metrics represents exporter metrics which values can be carried between http requests.

func NewMetrics 

func NewMetrics() Metrics

NewMetrics creates new Metrics instance.

type ScrapeActivity 

type ScrapeActivity struct{}

ScrapeActivity scrapes from pg_stat_bgwriter

func (ScrapeActivity) Help 

func (ScrapeActivity) Help() string

Help describes the role of the Scraper

func (ScrapeActivity) Name 

func (ScrapeActivity) Name() string

Name of the Scraper

func (ScrapeActivity) Scrape 

func (ScrapeActivity) Scrape(ctx context.Context, db *bun.DB, ch chan<- prometheus.Metric) error

Scrape collects data from database connection and sends it over channel as prometheus metric.

func (ScrapeActivity) Type 

func (ScrapeActivity) Type() ScrapeType

Type returns the scrape type

func (ScrapeActivity) Version 

func (ScrapeActivity) Version() int

Version returns minimum PostgreSQL version

type ScrapeArchiver 

type ScrapeArchiver struct{}

ScrapeArchiver scrapes from pg_stat_archiver

func (ScrapeArchiver) Help 

func (ScrapeArchiver) Help() string

Help describes the role of the Scraper

func (ScrapeArchiver) Name 

func (ScrapeArchiver) Name() string

Name of the Scraper

func (ScrapeArchiver) Scrape 

func (ScrapeArchiver) Scrape(ctx context.Context, db *bun.DB, ch chan<- prometheus.Metric) error

Scrape collects data from database connection and sends it over channel as prometheus metric.

func (ScrapeArchiver) Type 

func (ScrapeArchiver) Type() ScrapeType

Type returns the scrape type

func (ScrapeArchiver) Version 

func (ScrapeArchiver) Version() int

Version returns minimum PostgreSQL version

type ScrapeBgWriter 

type ScrapeBgWriter struct{}

ScrapeBgWriter scrapes from pg_stat_bgwriter

func (ScrapeBgWriter) Help 

func (ScrapeBgWriter) Help() string

Help describes the role of the Scraper

func (ScrapeBgWriter) Name 

func (ScrapeBgWriter) Name() string

Name of the Scraper

func (ScrapeBgWriter) Scrape 

func (ScrapeBgWriter) Scrape(ctx context.Context, db *bun.DB, ch chan<- prometheus.Metric) error

Scrape collects data from database connection and sends it over channel as prometheus metric.

func (ScrapeBgWriter) Type 

func (ScrapeBgWriter) Type() ScrapeType

Type returns the scrape type

func (ScrapeBgWriter) Version 

func (ScrapeBgWriter) Version() int

Version returns minimum PostgreSQL version

type ScrapeDatabase 

type ScrapeDatabase struct{}

ScrapeDatabase scrapes from pg_stat_database

func (ScrapeDatabase) Help 

func (ScrapeDatabase) Help() string

Help describes the role of the Scraper

func (ScrapeDatabase) Name 

func (ScrapeDatabase) Name() string

Name of the Scraper

func (ScrapeDatabase) Scrape 

func (ScrapeDatabase) Scrape(ctx context.Context, db *bun.DB, ch chan<- prometheus.Metric) error

Scrape collects data from database connection and sends it over channel as prometheus metric.

func (ScrapeDatabase) Type 

func (ScrapeDatabase) Type() ScrapeType

Type returns the scrape type

func (ScrapeDatabase) Version 

func (ScrapeDatabase) Version() int

Version returns minimum PostgreSQL version

type ScrapeDatabaseConflicts 

type ScrapeDatabaseConflicts struct{}

ScrapeDatabaseConflicts scrapes from pg_stat_database_conflicts

func (ScrapeDatabaseConflicts) Help 

func (ScrapeDatabaseConflicts) Help() string

Help describes the role of the Scraper

func (ScrapeDatabaseConflicts) Name 

func (ScrapeDatabaseConflicts) Name() string

Name of the Scraper

func (ScrapeDatabaseConflicts) Scrape 

func (ScrapeDatabaseConflicts) Scrape(ctx context.Context, db *bun.DB, ch chan<- prometheus.Metric) error

Scrape collects data from database connection and sends it over channel as prometheus metric.

func (ScrapeDatabaseConflicts) Type 

func (ScrapeDatabaseConflicts) Type() ScrapeType

Type returns the scrape type

func (ScrapeDatabaseConflicts) Version 

func (ScrapeDatabaseConflicts) Version() int

Version returns minimum PostgreSQL version

type ScrapeIOTables 

type ScrapeIOTables struct{}

ScrapeIOTables scrapes from pg_statio_user_tables

func (ScrapeIOTables) Help 

func (ScrapeIOTables) Help() string

Help describes the role of the Scraper

func (ScrapeIOTables) Name 

func (ScrapeIOTables) Name() string

Name of the Scraper

func (ScrapeIOTables) Scrape 

func (ScrapeIOTables) Scrape(ctx context.Context, db *bun.DB, ch chan<- prometheus.Metric) error

Scrape collects data from database connection and sends it over channel as prometheus metric.

func (ScrapeIOTables) Type 

func (ScrapeIOTables) Type() ScrapeType

Type returns the scrape type

func (ScrapeIOTables) Version 

func (ScrapeIOTables) Version() int

Version returns minimum PostgreSQL version

type ScrapeInfo 

type ScrapeInfo struct{}

ScrapeInfo scrapes generic PostgreSQL information

func (ScrapeInfo) Help 

func (ScrapeInfo) Help() string

Help describes the role of the Scraper

func (ScrapeInfo) Name 

func (ScrapeInfo) Name() string

Name of the Scraper

func (ScrapeInfo) Scrape 

func (ScrapeInfo) Scrape(ctx context.Context, db *bun.DB, ch chan<- prometheus.Metric) error

Scrape collects data from database connection and sends it over channel as prometheus metric.

func (ScrapeInfo) Type 

func (ScrapeInfo) Type() ScrapeType

Type returns the scrape type

func (ScrapeInfo) Version 

func (ScrapeInfo) Version() int

Version returns minimum PostgreSQL version

type ScrapeLocks 

type ScrapeLocks struct{}

ScrapeLocks scrapes from pg_locks

func (ScrapeLocks) Help 

func (ScrapeLocks) Help() string

Help describes the role of the Scraper

func (ScrapeLocks) Name 

func (ScrapeLocks) Name() string

Name of the Scraper

func (ScrapeLocks) Scrape 

func (ScrapeLocks) Scrape(ctx context.Context, db *bun.DB, ch chan<- prometheus.Metric) error

Scrape collects data from database connection and sends it over channel as prometheus metric.

func (ScrapeLocks) Type 

func (ScrapeLocks) Type() ScrapeType

Type returns the scrape type

func (ScrapeLocks) Version 

func (ScrapeLocks) Version() int

Version returns minimum PostgreSQL version

type ScrapePreparedXacts 

type ScrapePreparedXacts struct{}

ScrapePreparedXacts scrapes from pg_prepared_xacts

func (ScrapePreparedXacts) Help 

func (ScrapePreparedXacts) Help() string

Help describes the role of the Scraper

func (ScrapePreparedXacts) Name 

func (ScrapePreparedXacts) Name() string

Name of the Scraper

func (ScrapePreparedXacts) Scrape 

func (ScrapePreparedXacts) Scrape(ctx context.Context, db *bun.DB, ch chan<- prometheus.Metric) error

Scrape collects data from database connection and sends it over channel as prometheus metric.

func (ScrapePreparedXacts) Type 

func (ScrapePreparedXacts) Type() ScrapeType

Type returns the scrape type

func (ScrapePreparedXacts) Version 

func (ScrapePreparedXacts) Version() int

Version returns minimum PostgreSQL version

type ScrapeReplication 

type ScrapeReplication struct{}

ScrapeReplication scrapes from pg_stat_replication

func (ScrapeReplication) Help 

func (ScrapeReplication) Help() string

Help describes the role of the Scraper

func (ScrapeReplication) Name 

func (ScrapeReplication) Name() string

Name of the Scraper

func (ScrapeReplication) Scrape 

func (ScrapeReplication) Scrape(ctx context.Context, db *bun.DB, ch chan<- prometheus.Metric) error

Scrape collects data from database connection and sends it over channel as prometheus metric.

func (ScrapeReplication) Type 

func (ScrapeReplication) Type() ScrapeType

Type returns the scrape type

func (ScrapeReplication) Version 

func (ScrapeReplication) Version() int

Version returns minimum PostgreSQL version

type ScrapeReplicationSlots 

type ScrapeReplicationSlots struct{}

ScrapeReplicationSlots scrapes from pg_stat_replication_slots

func (ScrapeReplicationSlots) Help 

func (ScrapeReplicationSlots) Help() string

Help describes the role of the Scraper

func (ScrapeReplicationSlots) Name 

func (ScrapeReplicationSlots) Name() string

Name of the Scraper

func (ScrapeReplicationSlots) Scrape 

func (ScrapeReplicationSlots) Scrape(ctx context.Context, db *bun.DB, ch chan<- prometheus.Metric) error

Scrape collects data from database connection and sends it over channel as prometheus metric.

func (ScrapeReplicationSlots) Type 

func (ScrapeReplicationSlots) Type() ScrapeType

Type returns the scrape type

func (ScrapeReplicationSlots) Version 

func (ScrapeReplicationSlots) Version() int

Version returns minimum PostgreSQL version

type ScrapeSettings 

type ScrapeSettings struct{}

ScrapeSettings scrapes from pg_settings

func (ScrapeSettings) Help 

func (ScrapeSettings) Help() string

Help describes the role of the Scraper

func (ScrapeSettings) Name 

func (ScrapeSettings) Name() string

Name of the Scraper

func (ScrapeSettings) Scrape 

func (ScrapeSettings) Scrape(ctx context.Context, db *bun.DB, ch chan<- prometheus.Metric) error

Scrape collects data from database connection and sends it over channel as prometheus metric.

func (ScrapeSettings) Type 

func (ScrapeSettings) Type() ScrapeType

Type returns the scrape type

func (ScrapeSettings) Version 

func (ScrapeSettings) Version() int

Version returns minimum PostgreSQL version

type ScrapeStatements 

type ScrapeStatements struct{}

ScrapeStatements scrapes from pg_stat_statements

func (ScrapeStatements) Help 

func (ScrapeStatements) Help() string

Help describes the role of the Scraper

func (ScrapeStatements) Name 

func (ScrapeStatements) Name() string

Name of the Scraper

func (ScrapeStatements) Scrape 

func (ScrapeStatements) Scrape(ctx context.Context, db *bun.DB, ch chan<- prometheus.Metric) error

Scrape collects data from database connection and sends it over channel as prometheus metric.

func (ScrapeStatements) Type 

func (ScrapeStatements) Type() ScrapeType

Type returns the scrape type

func (ScrapeStatements) Version 

func (ScrapeStatements) Version() int

Version returns minimum PostgreSQL version

type ScrapeTXID 

type ScrapeTXID struct{}

ScrapeTXID scrapes from txid_current()

func (ScrapeTXID) Help 

func (ScrapeTXID) Help() string

Help describes the role of the Scraper

func (ScrapeTXID) Name 

func (ScrapeTXID) Name() string

Name of the Scraper

func (ScrapeTXID) Scrape 

func (ScrapeTXID) Scrape(ctx context.Context, db *bun.DB, ch chan<- prometheus.Metric) error

Scrape collects data from database connection and sends it over channel as prometheus metric.

func (ScrapeTXID) Type 

func (ScrapeTXID) Type() ScrapeType

Type returns the scrape type

func (ScrapeTXID) Version 

func (ScrapeTXID) Version() int

Version returns minimum PostgreSQL version

type ScrapeTables 

type ScrapeTables struct{}

ScrapeTables scrapes from pg_stat_user_tables

func (ScrapeTables) Help 

func (ScrapeTables) Help() string

Help describes the role of the Scraper

func (ScrapeTables) Name 

func (ScrapeTables) Name() string

Name of the Scraper

func (ScrapeTables) Scrape 

func (ScrapeTables) Scrape(ctx context.Context, db *bun.DB, ch chan<- prometheus.Metric) error

Scrape collects data from database connection and sends it over channel as prometheus metric.

func (ScrapeTables) Type 

func (ScrapeTables) Type() ScrapeType

Type returns the scrape type

func (ScrapeTables) Version 

func (ScrapeTables) Version() int

Version returns minimum PostgreSQL version

type ScrapeType 

type ScrapeType int
const (
	SCRAPEGLOBAL ScrapeType = iota
	SCRAPELOCAL
)

type ScrapeWal 

type ScrapeWal struct{}

ScrapeWal scrapes from pg_stat_wal

func (ScrapeWal) Help 

func (ScrapeWal) Help() string

Help describes the role of the Scraper

func (ScrapeWal) Name 

func (ScrapeWal) Name() string

Name of the Scraper

func (ScrapeWal) Scrape 

func (ScrapeWal) Scrape(ctx context.Context, db *bun.DB, ch chan<- prometheus.Metric) error

Scrape collects data from database connection and sends it over channel as prometheus metric.

func (ScrapeWal) Type 

func (ScrapeWal) Type() ScrapeType

Type returns the scrape type

func (ScrapeWal) Version 

func (ScrapeWal) Version() int

Version returns minimum PostgreSQL version

type Scraper 

type Scraper interface {
	// Name of the Scraper. Should be unique.
	Name() string

	// Help describes the role of the Scraper.
	Help() string

	// Version of PostgreSQL from which scraper is available.
	Version() int

	// Type defines the scrape type
	Type() ScrapeType

	// Scrape collects data from database connection and sends it over channel as prometheus metric.
	Scrape(ctx context.Context, db *bun.DB, ch chan<- prometheus.Metric) error
}

Scraper is minimal interface that let's you add new prometheus metrics to pg_exporter.

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