Exemplo n.º 1
0
func GetBuckets(token string, min, max time.Time) ([]*Bucket, error) {
	var buckets []*Bucket
	startQuery := time.Now()
	rows, err := db.PGR.Query("select name, bucket, source, token, vals from metrics where token = $1 and bucket > $2 and bucket <= $3 order by bucket desc",
		token, min, max)
	if err != nil {
		return nil, err
	}
	utils.MeasureT(startQuery, "buckets.get-all")

	startParse := time.Now()
	defer rows.Close()
	for rows.Next() {
		var tmp []byte
		b := new(Bucket)
		buckets = append(buckets, b)
		rows.Scan(&b.Name, &b.Time, &b.Source, &b.Token, &tmp)
		if len(tmp) == 0 {
			b.Vals = []float64{}
			continue
		}
		encoding.DecodeArray(tmp, &b.Vals)
	}
	utils.MeasureT(startParse, "buckets.vals.decode")
	return buckets, nil
}
Exemplo n.º 2
0
func GetMetrics(token, name string, resolution int64, min, max time.Time) ([]*Metric, error) {
	startQuery := time.Now()
	rows, err := db.PGR.Query("select * from get_metrics($1, $2, $3, $4, $5)",
		token, name, resolution, min, max)
	if err != nil {
		utils.MeasureE("get-metrics-error", err)
		return nil, err
	}
	utils.MeasureT(startQuery, "get-metrics.query")
	startParse := time.Now()
	defer rows.Close()
	var metrics []*Metric
	for rows.Next() {
		startLoop := time.Now()
		var tmp []byte
		b := new(Bucket)
		rows.Scan(&b.Name, &b.Source, &b.Time, &tmp)
		if len(tmp) == 0 {
			b.Vals = []float64{}
			continue
		}
		encoding.DecodeArray(tmp, &b.Vals)
		m := new(Metric)
		m.Time = b.Time
		m.Name = b.Name
		m.Source = b.Source
		m.Mean = b.Mean()
		metrics = append(metrics, m)
		utils.MeasureT(startLoop, "get-metrics.scan-struct-loop")
	}
	utils.MeasureT(startParse, "parse.get-metrics")
	return metrics, nil
}
Exemplo n.º 3
0
func GetMetrics(token, name string, resolution int64, min, max time.Time) ([]*Metric, error) {
	defer utils.MeasureT("get-metrics", time.Now())

	rows, err := pg.Query("select * from get_buckets($1, $2, $3, $4, $5)",
		token, name, resolution, min, max)

	if err != nil {
		return nil, err
	}

	defer rows.Close()
	var metrics []*Metric
	for rows.Next() {
		var tmp []byte
		k := BKey{}
		rows.Scan(&k.Name, &k.Source, &k.Time, &tmp)
		b := Bucket{Key: k}

		if len(tmp) == 0 {
			b.Vals = []float64{}
			continue
		}
		encoding.DecodeArray(tmp, &b.Vals, '{', '}', ',')
		m := new(Metric)
		m.Time = k.Time
		m.Name = k.Name
		m.Source = k.Source
		m.Mean = b.Mean()
		metrics = append(metrics, m)
	}

	return metrics, nil
}
Exemplo n.º 4
0
func (b *Bucket) Get() error {
	defer utils.MeasureT("bucket.get", time.Now())

	rc := redisPool.Get()
	defer rc.Close()

	//Fill in the vals.
	reply, err := redis.Values(rc.Do("LRANGE", b.String(), 0, -1))
	if err != nil {
		return err
	}
	for _, item := range reply {
		v, ok := item.([]byte)
		if !ok {
			continue
		}
		err = encoding.DecodeArray(v, &b.Vals, '[', ']', ' ')
	}
	return nil
}
Exemplo n.º 5
0
func (b *Bucket) Get() {
	defer utils.MeasureT(time.Now(), "bucket.get")
	db.PGRLocker.Lock()
	rows, err := db.PGR.Query("select name, bucket, source, token, vals from metrics where id = $1",
		b.Id)
	if err != nil {
		fmt.Printf("at=error error=%s\n", err)
		return
	}
	rows.Next()
	var tmp []byte
	rows.Scan(&b.Name, &b.Time, &b.Source, &b.Token, &tmp)
	rows.Close()
	db.PGRLocker.Unlock()

	if len(tmp) == 0 {
		b.Vals = []float64{}
		return
	}
	encoding.DecodeArray(tmp, &b.Vals)
}