Example #1
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)
}