func NewShard(db storage.Engine, pointBatchSize, writeBatchSize int) (*Shard, error) {
lastIdBytes, err2 := db.Get(NEXT_ID_KEY)
if err2 != nil {
return nil, err2
}
lastId := uint64(0)
if lastIdBytes != nil {
lastId, err2 = binary.ReadUvarint(bytes.NewBuffer(lastIdBytes))
if err2 != nil {
return nil, err2
}
}
return &Shard{
db: db,
lastIdUsed: lastId,
pointBatchSize: pointBatchSize,
writeBatchSize: writeBatchSize,
}, nil
}
