Exemplo n.º 1
0
func (self *CoordinatorImpl) write(db string, series []*protocol.Series, shard cluster.Shard, sync bool) error {
	request := &protocol.Request{Type: &write, Database: &db, MultiSeries: series}
	if sync {
		return shard.SyncWrite(request)
	}
	return shard.Write(request)
}
Exemplo n.º 2
0
func (self *CoordinatorImpl) write(db string, series []*protocol.Series, shard cluster.Shard, sync bool) error {
	request := &protocol.Request{Type: &write, Database: &db, MultiSeries: series}
	// break the request if it's too big
	if request.Size() >= MAX_REQUEST_SIZE {
		if l := len(series); l > 1 {
			// create two requests with half the serie
			if err := self.write(db, series[:l/2], shard, sync); err != nil {
				return err
			}
			return self.write(db, series[l/2:], shard, sync)
		}

		// otherwise, split the points of the only series
		s := series[0]
		l := len(s.Points)
		s1 := &protocol.Series{Name: s.Name, Fields: s.Fields, Points: s.Points[:l/2]}
		if err := self.write(db, []*protocol.Series{s1}, shard, sync); err != nil {
			return err
		}
		s2 := &protocol.Series{Name: s.Name, Fields: s.Fields, Points: s.Points[l/2:]}
		return self.write(db, []*protocol.Series{s2}, shard, sync)
	}
	if sync {
		return shard.SyncWrite(request)
	}
	return shard.Write(request)
}
Exemplo n.º 3
0
func (self *CoordinatorImpl) CommitSeriesData(db string, series *protocol.Series) error {
	lastPointIndex := 0
	now := common.CurrentTime()
	var shardToWrite cluster.Shard
	for _, point := range series.Points {
		if point.Timestamp == nil {
			point.Timestamp = &now
		}
	}

	lastTime := int64(math.MinInt64)
	if len(series.Points) > 0 && *series.Points[0].Timestamp == lastTime {
		// just a hack to make sure lastTime will never equal the first
		// point's timestamp
		lastTime = 0
	}

	// sort the points by timestamp
	series.SortPointsTimeDescending()

	for i, point := range series.Points {
		if *point.Timestamp != lastTime {
			shard, err := self.clusterConfiguration.GetShardToWriteToBySeriesAndTime(db, *series.Name, *point.Timestamp)
			if err != nil {
				return err
			}
			if shardToWrite == nil {
				shardToWrite = shard
			} else if shardToWrite.Id() != shard.Id() {
				newIndex := i
				newSeries := &protocol.Series{Name: series.Name, Fields: series.Fields, Points: series.Points[lastPointIndex:newIndex]}
				if err := self.write(db, newSeries, shardToWrite); err != nil {
					return err
				}
				lastPointIndex = newIndex
				shardToWrite = shard
			}
			lastTime = *point.Timestamp
		}
	}

	series.Points = series.Points[lastPointIndex:]

	if len(series.Points) > 0 {
		if shardToWrite == nil {
			shardToWrite, _ = self.clusterConfiguration.GetShardToWriteToBySeriesAndTime(db, *series.Name, *series.Points[0].Timestamp)
		}

		err := self.write(db, series, shardToWrite)

		if err != nil {
			log.Error("COORD error writing: ", err)
			return err
		}

		return err
	}

	return nil
}
Exemplo n.º 4
0
func (self *CoordinatorImpl) CommitSeriesData(db string, series *protocol.Series) error {
	lastTime := int64(0)
	lastPointIndex := 0
	now := common.CurrentTime()
	var shardToWrite cluster.Shard
	for i, point := range series.Points {
		if point.Timestamp == nil {
			point.Timestamp = &now
		}
		if *point.Timestamp != lastTime {
			shard, err := self.clusterConfiguration.GetShardToWriteToBySeriesAndTime(db, *series.Name, *point.Timestamp)
			if err != nil {
				return err
			}
			if shardToWrite == nil {
				shardToWrite = shard
			} else if shardToWrite.Id() != shard.Id() {
				newIndex := i + 1
				newSeries := &protocol.Series{Name: series.Name, Fields: series.Fields, Points: series.Points[lastPointIndex:newIndex]}
				self.write(db, newSeries, shardToWrite)
				lastPointIndex = newIndex
				shardToWrite = shard
			}
			lastTime = *point.Timestamp
		}
	}

	series.Points = series.Points[lastPointIndex:]

	if len(series.Points) > 0 {
		if shardToWrite == nil {
			shardToWrite, _ = self.clusterConfiguration.GetShardToWriteToBySeriesAndTime(db, *series.Name, *series.Points[0].Timestamp)
		}

		err := self.write(db, series, shardToWrite)

		if err != nil {
			log.Error("COORD error writing: ", err)
		}

		return err
	}

	return nil
}
Exemplo n.º 5
0
func (self *CoordinatorImpl) writeWithoutAssigningId(db string, series []*protocol.Series, shard cluster.Shard, sync bool) error {
	request := &protocol.Request{Type: &write, Database: &db, MultiSeries: series}
	// break the request if it's too big
	if request.Size() >= MAX_REQUEST_SIZE {
		if l := len(series); l > 1 {
			// create two requests with half the serie
			if err := self.writeWithoutAssigningId(db, series[:l/2], shard, sync); err != nil {
				return err
			}
			return self.writeWithoutAssigningId(db, series[l/2:], shard, sync)
		}

		// otherwise, split the points of the only series
		s := series[0]
		l := len(s.Points)
		s1 := &protocol.Series{Name: s.Name, FieldIds: s.FieldIds, Points: s.Points[:l/2]}
		if err := self.writeWithoutAssigningId(db, []*protocol.Series{s1}, shard, sync); err != nil {
			return err
		}
		s2 := &protocol.Series{Name: s.Name, FieldIds: s.FieldIds, Points: s.Points[l/2:]}
		return self.writeWithoutAssigningId(db, []*protocol.Series{s2}, shard, sync)
	}

	// if we received a synchronous write, then this is coming from the
	// continuous queries which have the sequence numbers assigned
	if sync {
		return shard.SyncWrite(request, false)
	}

	// If the shard isn't replicated do a syncrhonous write
	if shard.ReplicationFactor() <= 1 {
		// assign sequenceNumber and write synchronously
		return shard.SyncWrite(request, true)
	}
	return shard.Write(request)
}
Exemplo n.º 6
0
func (self *CoordinatorImpl) write(db string, series *protocol.Series, shard cluster.Shard) error {
	request := &protocol.Request{Type: &write, Database: &db, Series: series}
	return shard.Write(request)
}