sample.go

	opts := badger.DefaultOptions
	opts.Dir = "data1"
	opts.ValueDir = "data2"
	opts.TableLoadingMode = options.MemoryMap
	db, _ := badger.Open(opts)
	go func() {
		for {
			err := db.Update(func(txn *badger.Txn) error {
				prefix := []byte("abc")
				for i := 0; i < 10000; i++ {
					key := sha256.Sum256([]byte(fmt.Sprintf("%d", rand.Int())))
					val := sha256.Sum256([]byte(fmt.Sprintf("%d", rand.Int())))
					err := txn.Set(append(prefix, key[:]...), val[:])
					if err != nil {
						return err
					}
				}
				return nil
			})
			if err != nil {
				log.Printf("Error when committing index: %s", err.Error())
			} else {
				log.Print("Committed index")
			}
		}
	}()