Evstigneev Denis
77e370ffdc
move micro-wrapper-sql to core repo Co-authored-by: Vasiliy Tolstov <v.tolstov@unistack.org> Reviewed-on: #401 Co-authored-by: Evstigneev Denis <danteevstigneev@yandex.ru> Co-committed-by: Evstigneev Denis <danteevstigneev@yandex.ru>
42 lines
1.1 KiB
Go
42 lines
1.1 KiB
Go
package sql
|
|
|
|
import (
|
|
"context"
|
|
"database/sql"
|
|
"time"
|
|
)
|
|
|
|
type Statser interface {
|
|
Stats() sql.DBStats
|
|
}
|
|
|
|
func NewStatsMeter(ctx context.Context, db Statser, opts ...Option) {
|
|
options := NewOptions(opts...)
|
|
|
|
go func() {
|
|
ticker := time.NewTicker(options.MeterStatsInterval)
|
|
defer ticker.Stop()
|
|
|
|
for {
|
|
select {
|
|
case <-ctx.Done():
|
|
return
|
|
case <-ticker.C:
|
|
if db == nil {
|
|
return
|
|
}
|
|
stats := db.Stats()
|
|
options.Meter.Counter(MaxOpenConnections).Set(uint64(stats.MaxOpenConnections))
|
|
options.Meter.Counter(OpenConnections).Set(uint64(stats.OpenConnections))
|
|
options.Meter.Counter(InuseConnections).Set(uint64(stats.InUse))
|
|
options.Meter.Counter(IdleConnections).Set(uint64(stats.Idle))
|
|
options.Meter.Counter(WaitConnections).Set(uint64(stats.WaitCount))
|
|
options.Meter.FloatCounter(BlockedSeconds).Set(stats.WaitDuration.Seconds())
|
|
options.Meter.Counter(MaxIdleClosed).Set(uint64(stats.MaxIdleClosed))
|
|
options.Meter.Counter(MaxIdletimeClosed).Set(uint64(stats.MaxIdleTimeClosed))
|
|
options.Meter.Counter(MaxLifetimeClosed).Set(uint64(stats.MaxLifetimeClosed))
|
|
}
|
|
}
|
|
}()
|
|
}
|