How to fix BackupInUseException: Backup is being used by another operation in DynamoDB

aws dynamodb describe-backup --backup-arn arn:aws:dynamodb:region:account-id:table/table-name/backup/backup-id

const { DynamoDBClient, RestoreTableFromBackupCommand } = require('@aws-sdk/client-dynamodb');

const client = new DynamoDBClient({ region: 'us-east-1' });

async function restoreWithRetry(backupArn, tableName, maxRetries = 5) {
  for (let attempt = 1; attempt <= maxRetries; attempt++) {
    try {
      const command = new RestoreTableFromBackupCommand({
        BackupArn: backupArn,
        TargetTableName: tableName
      });
      const response = await client.send(command);
      console.log('Restore started:', response.TableDescription.TableArn);
      return response;
    } catch (error) {
      if (error.name === 'BackupInUseException' && attempt < maxRetries) {
        const delay = Math.pow(2, attempt - 1) * 1000; // Exponential backoff
        console.log(`Attempt ${attempt} failed. Retrying in ${delay}ms...`);
        await new Promise(resolve => setTimeout(resolve, delay));
      } else {
        throw error;
      }
    }
  }
}

restoreWithRetry('arn:aws:dynamodb:region:account:table/MyTable/backup/id', 'MyTable-Restored');

import boto3
import time

dynamodb = boto3.client('dynamodb')

def wait_for_backup_available(backup_arn, timeout=300):
    start_time = time.time()
    while time.time() - start_time < timeout:
        response = dynamodb.describe_backup(BackupArn=backup_arn)
        status = response['BackupDescription']['BackupDetails']['BackupStatus']
        
        if status == 'AVAILABLE':
            return True
        elif status in ['DELETED', 'CREATING', 'DELETING']:
            print(f'Backup status: {status}, waiting...')
            time.sleep(5)
        else:
            raise Exception(f'Unexpected backup status: {status}')
    
    raise TimeoutError(f'Backup did not become available within {timeout} seconds')

wait_for_backup_available('arn:aws:dynamodb:region:account:table/MyTable/backup/id')