Cancel a job

Attempt to cancel a job.

Explore further

For detailed documentation that includes this code sample, see the following:

• Managing jobs

Code sample

Go

Before trying this sample, follow the Go setup instructions in the BigQuery quickstart using client libraries. For more information, see the BigQuery Go API reference documentation.

To authenticate to BigQuery, set up Application Default Credentials. For more information, see Set up authentication for client libraries.

import (
	"context"
	"fmt"

	"cloud.google.com/go/bigquery"
)

// cancelJob demonstrates how a job cancellation request can be issued for a specific
// BigQuery job.
func cancelJob(projectID, jobID string) error {
	// projectID := "my-project-id"
	// jobID := "my-job-id"
	ctx := context.Background()

	client, err := bigquery.NewClient(ctx, projectID)
	if err != nil {
		return fmt.Errorf("bigquery.NewClient: %w", err)
	}
	defer client.Close()

	job, err := client.JobFromID(ctx, jobID)
	if err != nil {
		return nil
	}
	return job.Cancel(ctx)
}

Java

Before trying this sample, follow the Java setup instructions in the BigQuery quickstart using client libraries. For more information, see the BigQuery Java API reference documentation.

To authenticate to BigQuery, set up Application Default Credentials. For more information, see Set up authentication for client libraries.

import com.google.cloud.bigquery.BigQuery;
import com.google.cloud.bigquery.BigQueryException;
import com.google.cloud.bigquery.BigQueryOptions;
import com.google.cloud.bigquery.Job;
import com.google.cloud.bigquery.JobId;
import com.google.cloud.bigquery.JobInfo;
import com.google.cloud.bigquery.QueryJobConfiguration;
import java.util.UUID;

// Sample to cancel a job
public class CancelJob {

  public static void main(String[] args) {
    // TODO(developer): Replace these variables before running the sample.
    String query = "SELECT country_name from `bigquery-public-data.utility_us.country_code_iso`";
    cancelJob(query);
  }

  public static void cancelJob(String query) {
    try {
      // Initialize client that will be used to send requests. This client only needs to be created
      // once, and can be reused for multiple requests.
      BigQuery bigquery = BigQueryOptions.getDefaultInstance().getService();

      // Specify a job configuration to set optional job resource properties.
      QueryJobConfiguration queryConfig = QueryJobConfiguration.newBuilder(query).build();

      // The location and job name are optional,
      // if both are not specified then client will auto-create.
      String jobName = "jobId_" + UUID.randomUUID().toString();
      JobId jobId = JobId.newBuilder().setLocation("us").setJob(jobName).build();

      // Create a job with job ID
      bigquery.create(JobInfo.of(jobId, queryConfig));

      // Get a job that was just created
      Job job = bigquery.getJob(jobId);
      if (job.cancel()) {
        System.out.println("Job canceled successfully");
      } else {
        System.out.println("Job was not canceled");
      }
    } catch (BigQueryException e) {
      System.out.println("Job was not canceled.\n" + e.toString());
    }
  }
}

Node.js

Before trying this sample, follow the Node.js setup instructions in the BigQuery quickstart using client libraries. For more information, see the BigQuery Node.js API reference documentation.

To authenticate to BigQuery, set up Application Default Credentials. For more information, see Set up authentication for client libraries.

// Import the Google Cloud client library
const {BigQuery} = require('@google-cloud/bigquery');
const bigquery = new BigQuery();

async function cancelJob() {
  // Attempts to cancel a job.

  /**
   * TODO(developer): Uncomment the following lines before running the sample.
   */
  // const jobId = "existing-job-id";

  // Create a job reference
  const job = bigquery.job(jobId);

  // Attempt to cancel job
  const [apiResult] = await job.cancel();

  console.log(apiResult.job.status);
}

Python

Before trying this sample, follow the Python setup instructions in the BigQuery quickstart using client libraries. For more information, see the BigQuery Python API reference documentation.

To authenticate to BigQuery, set up Application Default Credentials. For more information, see Set up authentication for client libraries.

from google.cloud import bigquery


def cancel_job(
    client: bigquery.Client,
    location: str = "us",
    job_id: str = "abcd-efgh-ijkl-mnop",
) -> None:
    job = client.cancel_job(job_id, location=location)
    print(f"{job.location}:{job.job_id} cancelled")

What's next

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