c# - 来自 CloudTable.ExecuteBatch(..) 的意外响应代码

Question

尝试批量插入 Azure 表存储时，我在 CloudTable.ExecuteBatch() 上收到 StorageException:

TableBatchOperation batchOperation = new TableBatchOperation();

foreach (var entity in entities)
{
    batchOperation.InsertOrReplace(entity);
}

table.ExecuteBatch(batchOperation);

抛出异常:

Microsoft.WindowsAzure.Storage.StorageException: Unexpected response code for operation : 6 at Microsoft.WindowsAzure.Storage.Core.Executor.Executor.ExecuteSync[T](StorageCommandBase1 cmd, IRetryPolicy policy, OperationContext operationContext) in e:\projects\azure-sdk-for-net\microsoft-azure-api\Services\Storage\Lib\DotNetCommon\Core\Executor\Executor.cs:line 737 at Microsoft.WindowsAzure.Storage.Table.TableBatchOperation.Execute(CloudTableClient client, String tableName, TableRequestOptions requestOptions, OperationContext operationContext) in e:\projects\azure-sdk-for-net\microsoft-azure-api\Services\Storage\Lib\DotNetCommon\Table\TableBatchOperation.cs:line 85 at Microsoft.WindowsAzure.Storage.Table.CloudTable.ExecuteBatch(TableBatchOperation batch, TableRequestOptions requestOptions, OperationContext operationContext) in e:\projects\azure-sdk-for-net\microsoft-azure-api\Services\Storage\Lib\DotNetCommon\Table\CloudTable.cs:line 165 at Library.Modules.Cloud.TableStorage.StorageTableRepository1.InsertOrReplaceBatch(List1 entities)

通常使用 TableOperation 插入这些实体不会给我带来任何问题。

我在 Internet 或 MSDN 引用文献中找不到此异常。

Answer 1

这是由于重复的 RowKey 值造成的。即使使用 TableBatchOperation.InsertOrReplace(entities)，行键仍然需要是唯一的。

操作的意外响应代码:6 引用了列表中的第 6 个元素。在我看来，Azure SDK 中的错误代码非常具有误导性。