func (self *ShardData) Write(request *p.Request) error {
request.ShardId = &self.id
requestNumber, err := self.wal.AssignSequenceNumbersAndLog(request, self)
if err != nil {
return err
}
request.RequestNumber = &requestNumber
if self.store != nil {
self.store.BufferWrite(request)
}
for _, server := range self.clusterServers {
// we have to create a new reqeust object because the ID gets assigned on each server.
requestWithoutId := &p.Request{Type: request.Type, Database: request.Database, MultiSeries: request.MultiSeries, ShardId: &self.id, RequestNumber: request.RequestNumber}
server.BufferWrite(requestWithoutId)
}
return nil
}
func (self *ShardData) SyncWrite(request *p.Request, assignSeqNum bool) error {
if assignSeqNum {
self.wal.AssignSequenceNumbers(request)
}
request.ShardId = &self.id
for _, server := range self.clusterServers {
if err := server.Write(request); err != nil {
return err
}
}
if self.store == nil {
return nil
}
return self.store.Write(request)
}