Cosmos DB故障但确实写入

Question

写Cosmos DB时遇到一个奇怪的问题。第一次写入似乎因ResultCode中的Faulted而失败。但是，似乎写操作确实有效，并且重试时ResultCode是409冲突。

这是个问题，因为我将其用作幂等检查，因此我们随后不执行第三方调用。

任何想法为什么我们会得到这种行为？看来我们需要关闭设置/选项以防止重试。

我们有一个非常简单的文档客户端设置

return new DocumentClient(new Uri(configuration["CosmosDBSettings:EndpointUri"]), configuration["CosmosDBSettings:AuthenticationKey"]);

插入文档的代码为：

public async Task<bool> TryInsertReference(Guid paymentReference)
{
    try
    {
        await this.documentClient.CreateDocumentAsync(UriFactory.CreateDocumentCollectionUri(DatabaseId, VoidCollectionId), new Payment { PaymentReference = paymentReference });
        return true;
    }
    catch (DocumentClientException e) when (e.StatusCode == HttpStatusCode.Conflict)
    {
        return false;
    }
}
    
public async Task Initialise()
{
    await CreateDatabaseIfNotExistsAsync();
    await this.CreateCollectionIfNotExistsAsync(GuaranteeCollectionId);
    await this.CreateCollectionIfNotExistsAsync(VoidCollectionId);
}

private async Task CreateDatabaseIfNotExistsAsync()
{
    try
    {
        await documentClient.ReadDatabaseAsync(UriFactory.CreateDatabaseUri(DatabaseId));
    }
    catch (DocumentClientException e)
    {
        if (e.StatusCode == HttpStatusCode.NotFound)
        {
            await documentClient.CreateDatabaseAsync(new Database { Id = DatabaseId });
        }
        else
        {
            throw;
        }
    }
}

private async Task CreateCollectionIfNotExistsAsync(string collectionId)
{
    try
    {
        await documentClient.ReadDocumentCollectionAsync(UriFactory.CreateDocumentCollectionUri(DatabaseId, collectionId));
    }
    catch (DocumentClientException e)
    {
        if (e.StatusCode == HttpStatusCode.NotFound)
        {
            await documentClient.CreateDocumentCollectionAsync(UriFactory.CreateDatabaseUri(DatabaseId), new DocumentCollection { Id = collectionId, DefaultTimeToLive = this.timeToLive });
        }
        else
        {
            throw;
        }
    }
}