Set retry parameter for a queue

Sets retry parameter for a queue for migrating from taskqueues example.

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

Code sample

Java

To learn how to install and use the client library for Cloud Tasks, see Cloud Tasks client libraries.

To authenticate to Cloud Tasks, set up Application Default Credentials. For more information, see Set up authentication for a local development environment. 

import com.google.cloud.tasks.v2.CloudTasksClient;
import com.google.cloud.tasks.v2.LocationName;
import com.google.cloud.tasks.v2.Queue;
import com.google.cloud.tasks.v2.QueueName;
import com.google.cloud.tasks.v2.RateLimits;
import com.google.cloud.tasks.v2.RetryConfig;
import com.google.protobuf.Duration;

public class RetryTask {
  public static void retryTask(
      String projectId, String locationId, String fooqueue, String barqueue, String bazqueue)
      throws Exception {
    try (CloudTasksClient client = CloudTasksClient.create()) {
      // TODO(developer): Uncomment these lines and replace with your values.
      // String projectId = "your-project-id";
      // String locationId = "us-central1";
      // String fooqueue = "fooqueue";
      // String barqueue = "barqueue";
      // String bazqueue = "bazqueue";

      LocationName parent = LocationName.of(projectId, locationId);

      Duration retryDuration = Duration.newBuilder().setSeconds(2 * 60 * 60 * 24).build();
      Duration min = Duration.newBuilder().setSeconds(10).build();
      Duration max1 = Duration.newBuilder().setSeconds(200).build();
      Duration max2 = Duration.newBuilder().setSeconds(300).build();

      Queue foo =
          Queue.newBuilder()
              .setName(QueueName.of(projectId, locationId, fooqueue).toString())
              .setRateLimits(RateLimits.newBuilder().setMaxDispatchesPerSecond(1.0))
              .setRetryConfig(
                  RetryConfig.newBuilder().setMaxAttempts(7).setMaxRetryDuration(retryDuration))
              .build();

      Queue bar =
          Queue.newBuilder()
              .setName(QueueName.of(projectId, locationId, barqueue).toString())
              .setRateLimits(RateLimits.newBuilder().setMaxDispatchesPerSecond(1.0))
              .setRetryConfig(
                  RetryConfig.newBuilder()
                      .setMinBackoff(min)
                      .setMaxBackoff(max1)
                      .setMaxDoublings(0))
              .build();

      Queue baz =
          Queue.newBuilder()
              .setName(QueueName.of(projectId, locationId, bazqueue).toString())
              .setRateLimits(RateLimits.newBuilder().setMaxDispatchesPerSecond(1.0))
              .setRetryConfig(
                  RetryConfig.newBuilder()
                      .setMinBackoff(min)
                      .setMaxBackoff(max2)
                      .setMaxDoublings(3))
              .build();

      Queue[] queues = new Queue[] {foo, bar, baz};
      for (Queue queue : queues) {
        Queue response = client.createQueue(parent, queue);
        System.out.println(response);
      }
    }
  }
}

Python

To learn how to install and use the client library for Cloud Tasks, see Cloud Tasks client libraries.

To authenticate to Cloud Tasks, set up Application Default Credentials. For more information, see Set up authentication for a local development environment. 

from google.protobuf import duration_pb2

client = tasks.CloudTasksClient()

# TODO(developer): Uncomment these lines and replace with your values.
# project = 'my-project-id'
# location = 'us- central1'
# fooqueue = 'fooqueue'
# barqueue = 'barqueue'
# bazqueue = 'bazqueue'

parent = f"projects/{project}/locations/{location}"

max_retry = duration_pb2.Duration()
max_retry.seconds = 2 * 60 * 60 * 24

foo = {
    "name": client.queue_path(project, location, fooqueue),
    "rate_limits": {"max_dispatches_per_second": 1},
    "retry_config": {"max_attempts": 7, "max_retry_duration": max_retry},
}

min = duration_pb2.Duration()
min.seconds = 10

max = duration_pb2.Duration()
max.seconds = 200

bar = {
    "name": client.queue_path(project, location, barqueue),
    "rate_limits": {"max_dispatches_per_second": 1},
    "retry_config": {"min_backoff": min, "max_backoff": max, "max_doublings": 0},
}

max.seconds = 300
baz = {
    "name": client.queue_path(project, location, bazqueue),
    "rate_limits": {"max_dispatches_per_second": 1},
    "retry_config": {"min_backoff": min, "max_backoff": max, "max_doublings": 3},
}

queues = [foo, bar, baz]
for queue in queues:
    response = client.create_queue(parent=parent, queue=queue)
    print(response)

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