Membuat reservasi BigQuery

Membuat reservasi di project dan lokasi yang ditentukan. Reservasi mewakili blok kapasitas pemrosesan kueri BigQuery khusus yang dapat dialokasikan untuk beban kerja organisasi Anda.

Contoh kode

Node.js

Sebelum mencoba contoh ini, ikuti petunjuk penyiapan Node.js di Panduan memulai BigQuery menggunakan library klien. Untuk mengetahui informasi selengkapnya, lihat Dokumentasi referensi BigQuery Node.js API.

Untuk melakukan autentikasi ke BigQuery, siapkan Kredensial Default Aplikasi. Untuk mengetahui informasi selengkapnya, lihat Menyiapkan autentikasi untuk library klien.

const {ReservationServiceClient} =
  require('@google-cloud/bigquery-reservation').v1;
const {status} = require('@grpc/grpc-js');

const client = new ReservationServiceClient();

/**
 * Creates a new reservation.
 * A reservation provides computational resource guarantees, in the form of
 * slots, to users. A slot is a unit of computational power in BigQuery.
 *
 * @param {string} projectId Google Cloud project ID, for example 'example-project-id'.
 * @param {string} location The geographic location where the reservation should reside, for example 'us-central1'.
 * @param {string} reservationId The ID of the reservation to create, for example 'example-reservation'.
 */
async function createReservation(
  projectId,
  location = 'us-central1',
  reservationId = 'example-reservation',
) {
  const parent = `projects/${projectId}/locations/${location}`;
  const request = {
    parent,
    reservationId,
    reservation: {
      slotCapacity: 100,
      ignoreIdleSlots: false,
    },
  };

  try {
    const [createdReservation] = await client.createReservation(request);
    console.log(`Created reservation: ${createdReservation.name}`);
    console.log(`  Slot capacity: ${createdReservation.slotCapacity}`);
  } catch (err) {
    if (err.code === status.ALREADY_EXISTS) {
      console.log(
        `Reservation ${reservationId} already exists in project ${projectId} at location ${location}.`,
      );
    } else {
      console.error(`Error creating reservation ${reservationId}:`, err);
    }
  }
}

Python

Sebelum mencoba contoh ini, ikuti petunjuk penyiapan Python di Panduan memulai BigQuery menggunakan library klien. Untuk mengetahui informasi selengkapnya, lihat Dokumentasi referensi BigQuery Python API.

Untuk melakukan autentikasi ke BigQuery, siapkan Kredensial Default Aplikasi. Untuk mengetahui informasi selengkapnya, lihat Menyiapkan autentikasi untuk library klien.

from google.api_core.exceptions import AlreadyExists
from google.cloud import bigquery_reservation_v1

client = bigquery_reservation_v1.ReservationServiceClient()


def create_reservation(project_id: str, location: str, reservation_id: str):
    """Creates a reservation.

    A reservation is a mechanism used to guarantee slots to users.

    Args:
        project_id: The Google Cloud project ID.
        location: The geographic location of the reservation, for example, "us-central1".
        reservation_id: The ID of the reservation to create. It must only contain
            lower case alphanumeric characters or dashes. It must start with a
            letter and must not end with a dash. Its maximum length is 64
            characters.
    """

    parent = f"projects/{project_id}/locations/{location}"
    reservation = bigquery_reservation_v1.Reservation(
        slot_capacity=100,
        ignore_idle_slots=True,
    )

    try:
        response = client.create_reservation(
            parent=parent,
            reservation_id=reservation_id,
            reservation=reservation,
        )
        print(f"Created reservation: {response.name}")
    except AlreadyExists:
        print(
            f"Reservation '{reservation_id}' already exists in location '{location}'."
        )

Langkah berikutnya

Untuk menelusuri dan memfilter contoh kode untuk produk Google Cloud lainnya, lihat browser contohGoogle Cloud .