Microsoft.Azure.Cosmos.Client：响应状态代码不表示成功：ServiceUnavailable (503)

Question

我正在尝试使用本地设置将新项目添加到 cosmos 数据库中。

这是我的批量插入代码：

private async Task AddSubscription(EnableOrDisableSubscriptionCommand command, SubscriptionAction subscriptionAction, IList<int> notificationCategoryTypes)
        {
            List<Task> bulkOperations = new List<Task>();
            foreach (var notificationCategory in notificationCategoryTypes)
            {
                var notificationTypes = Utility.GetNotificationTypes((NotificationCategoryType)notificationCategory);

                foreach (var notificationType in notificationTypes)
                {
                    foreach (var payerAccountSubscriptions in command.Subscriptions)
                    {
                        if (payerAccountSubscriptions.AccountNumbers?.Any() ?? false)
                        {
                            foreach (var accountNumber in payerAccountSubscriptions.AccountNumbers.Where(a => !string.IsNullOrEmpty(a)))
                            {
                                bulkOperations.Add(_repository.Create(subscriptionAction, notificationType,
                                      payerAccountSubscriptions.ColCoId, payerAccountSubscriptions.PayerNumber, accountNumber, command.UserRole,
                                      command.UserId));
                            }
                        }
                        else
                        {
                            bulkOperations.Add(_repository.Create(subscriptionAction, notificationType,
                                payerAccountSubscriptions.ColCoId, payerAccountSubscriptions.PayerNumber, null, command.UserRole,
                                command.UserId));

                        }
                    }
                }
            }
            await Task.WhenAll(bulkOperations);
        }

 public Task<ItemResponse<T>> CreateItemAsync(T item, string partitionKeyValue)
        {
            return _container.CreateItemAsync<T>(item, new PartitionKey(partitionKeyValue));
        }

本地.settings.json：

{
  "IsEncrypted": false,
  "Values": {
    "AzureWebJobsStorage": "UseDevelopmentStorage=true",
    "AzureWebJobsDashboard": "UseDevelopmentStorage=true",
    "FUNCTIONS_WORKER_RUNTIME": "dotnet",
    //localhost
    "CosmosDbId": "Notifications",
    "CosmoDbAuthKey": "C2y6yDjf5/R+ob0N8A7Cgv30VRDJIWEHLM+4QDU5DE2nQ9nDuVTqobD4b8mGGyPMbIZnqyMsEcaGQy67XIw/Jw==",
    "CosmoDbEndpoint": "https://localhost:8081/",
}
}

我已经安装了 Azure Cosmos DB 模拟器。

我收到以下错误，该错误未提供太多信息？

[8/31/2020 6:49:10 AM] System.Private.CoreLib：执行函数时出现异常：EnableOrDisableSubscriptions。Microsoft.Azure.Cosmos.Client：响应状态代码不表示成功：ServiceUnavailable (503)；子状态：0；活动

Answer 1

我在 Cosmos DB SQL API 入门指南之后遇到了同样的问题。

修复方法是指定ConnectionMode = ConnectionMode.Gateway

var cosmosClient = new CosmosClient(EndpointUrl, AuthorizationKey, new CosmosClientOptions() { AllowBulkExecution = true, ConnectionMode = ConnectionMode.Gateway });