mirror of
https://github.com/prometheus-community/postgres_exporter
synced 2025-02-20 04:27:02 +00:00
98ba566322
Adds all bool/integer/real runtime variables that can be retrieved ths way. Use the `pg_settings` view to retrieve runtime variables: https://www.postgresql.org/docs/current/static/view-pg-settings.html Replaces the use of `SHOW` to retrieve runtime variables. Only runtime variables with a `vartype` of `bool`, `real`, or `integer` are currently supported. Uses the `short_desc` field as a description. This commit deprecates the following metric names: ``` pg_runtime_variable_max_connections pg_runtime_variable_max_files_per_process pg_runtime_variable_max_function_args pg_runtime_variable_max_identifier_length pg_runtime_variable_max_index_keys pg_runtime_variable_max_locks_per_transaction pg_runtime_variable_max_pred_locks_per_transaction pg_runtime_variable_max_prepared_transactions pg_runtime_variable_max_standby_archive_delay_milliseconds pg_runtime_variable_max_standby_streaming_delay_milliseconds pg_runtime_variable_max_wal_senders ``` They are replaced by equivalent names under `pg_settings` with the exception of ``` pg_runtime_variable_max_standby_archive_delay_milliseconds pg_runtime_variable_max_standby_streaming_delay_milliseconds ``` which are replaced with ``` pg_settings_max_standby_archive_delay_seconds pg_settings_max_standby_streaming_delay_seconds ``` Adds approximately 195 new metrics, when considered across all supported PostgreSQL versions.
76 lines
1.7 KiB
Go
76 lines
1.7 KiB
Go
// These are specialized integration tests. We only build them when we're doing
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// a lot of additional work to keep the external docker environment they require
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// working.
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// +build integration
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package main
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import (
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"os"
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"testing"
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. "gopkg.in/check.v1"
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"database/sql"
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"fmt"
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_ "github.com/lib/pq"
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"github.com/prometheus/client_golang/prometheus"
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)
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// Hook up gocheck into the "go test" runner.
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func Test(t *testing.T) { TestingT(t) }
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type IntegrationSuite struct {
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e *Exporter
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}
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var _ = Suite(&IntegrationSuite{})
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func (s *IntegrationSuite) SetUpSuite(c *C) {
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dsn := os.Getenv("DATA_SOURCE_NAME")
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c.Assert(dsn, Not(Equals), "")
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exporter := NewExporter(dsn, "")
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c.Assert(exporter, NotNil)
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// Assign the exporter to the suite
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s.e = exporter
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prometheus.MustRegister(exporter)
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}
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// TODO: it would be nice if this didn't mostly just recreate the scrape function
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func (s *IntegrationSuite) TestAllNamespacesReturnResults(c *C) {
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// Setup a dummy channel to consume metrics
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ch := make(chan prometheus.Metric, 100)
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go func() {
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for range ch {
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}
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}()
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// Open a database connection
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db, err := sql.Open("postgres", s.e.dsn)
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c.Assert(db, NotNil)
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c.Assert(err, IsNil)
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defer db.Close()
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// Do a version update
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err = s.e.checkMapVersions(ch, db)
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c.Assert(err, IsNil)
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err = querySettings(ch, db)
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if !c.Check(err, Equals, nil) {
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fmt.Println("## ERRORS FOUND")
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fmt.Println(err)
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}
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// This should never happen in our test cases.
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errMap := queryNamespaceMappings(ch, db, s.e.metricMap, s.e.queryOverrides)
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if !c.Check(len(errMap), Equals, 0) {
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fmt.Println("## NAMESPACE ERRORS FOUND")
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for namespace, err := range errMap {
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fmt.Println(namespace, ":", err)
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}
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}
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}
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