shad-go/lectures/07-sql/conf/stats.go

package conf

type DBStats struct {
	MaxOpenConnections int // Maximum number of open connections to the database; added in Go 1.11

	// Pool Status
	OpenConnections int // The number of established connections both in use and idle.
	InUse           int // The number of connections currently in use; added in Go 1.11
	Idle            int // The number of idle connections; added in Go 1.11

	// Counters
	WaitCount         int64         // The total number of connections waited for; added in Go 1.11
	WaitDuration      time.Duration // The total time blocked waiting for a new connection; added in Go 1.11
	MaxIdleClosed     int64         // The total number of connections closed due to SetMaxIdleConns; added in Go 1.11
	MaxIdleTimeClosed int64         // The total number of connections closed due to SetConnMaxIdleTime; added in Go 1.15
	MaxLifetimeClosed int64         // The total number of connections closed due to SetConnMaxLifetime; added in Go 1.11
}