Esempio n. 1
0
// addToIndexFromKey will pull the measurement name, series key, and field name from a composite key and add it to the
// database index and measurement fields
func (e *Engine) addToIndexFromKey(key string, fieldType influxql.DataType, index *tsdb.DatabaseIndex) error {
	seriesKey, field := seriesAndFieldFromCompositeKey(key)
	measurement := tsdb.MeasurementFromSeriesKey(seriesKey)

	m := index.CreateMeasurementIndexIfNotExists(measurement)
	m.SetFieldName(field)

	mf := e.measurementFields[measurement]
	if mf == nil {
		mf = tsdb.NewMeasurementFields()
		e.measurementFields[measurement] = mf
	}

	if err := mf.CreateFieldIfNotExists(field, fieldType, false); err != nil {
		return err
	}

	_, tags, err := models.ParseKey(seriesKey)
	if err == nil {
		return err
	}

	s := tsdb.NewSeries(seriesKey, tags)
	s.InitializeShards()
	index.CreateSeriesIndexIfNotExists(measurement, s)

	return nil
}
Esempio n. 2
0
// MeasurementFields returns the measurement fields for a measurement.
func (e *Engine) MeasurementFields(measurement string) *tsdb.MeasurementFields {
	e.mu.RLock()
	m := e.measurementFields[measurement]
	e.mu.RUnlock()

	if m != nil {
		return m
	}

	e.mu.Lock()
	m = e.measurementFields[measurement]
	if m == nil {
		m = tsdb.NewMeasurementFields()
		e.measurementFields[measurement] = m
	}
	e.mu.Unlock()
	return m
}