java - 如何使用 Java SQL API 重命名 Azure Cosmos DB 中的容器？

Question

看起来像这样it is not possible to rename a container in the Azure Cosmos DB 。应通过批量操作将其复制到新容器。如何使用 Java SDK 做到这一点？有 sample 吗？

Answer 1

是的，你说得对。目前无法更改容器名称。据我了解，您想要丢弃旧容器(正如您最初想要重命名的那样)并将数据迁移到新容器。

数据迁移工具是一个很棒的工具:Tutorial: Use Data migration tool to migrate your data to Azure Cosmos DB

此外，请查看 Bulk Executor library for Java , API documentation和 samples .

您可以在BulkExecutor中使用importAll类:

ConnectionPolicy connectionPolicy = new ConnectionPolicy();
 RetryOptions retryOptions = new RetryOptions();
 
 // Set client's retry options high for initialization
 retryOptions.setMaxRetryWaitTimeInSeconds(120);
 retryOptions.setMaxRetryAttemptsOnThrottledRequests(100);
 connectionPolicy.setRetryOptions(retryOptions);
 connectionPolicy.setMaxPoolSize(1000);

 DocumentClient client = new DocumentClient(HOST, MASTER_KEY, connectionPolicy, null);

 String collectionLink = String.format("/dbs/%s/colls/%s", "mydb", "mycol");
 DocumentCollection collection = client.readCollection(collectionLink, null).getResource();

 DocumentBulkExecutor executor = DocumentBulkExecutor.builder().from(client, collection,
     collection.getPartitionKey(), collectionOfferThroughput).build();

 // Set retries to 0 to pass control to bulk executor
 client.getConnectionPolicy().getRetryOptions().setMaxRetryWaitTimeInSeconds(0);
 client.getConnectionPolicy().getRetryOptions().setMaxRetryAttemptsOnThrottledRequests(0);
 
 for(int i = 0; i < 10; i++) {
   List documents = documentSource.getMoreDocuments();

   BulkImportResponse bulkImportResponse = executor.importAll(documents, false, true, 40);

   // Validate that all documents inserted to ensure no failure.
   if (bulkImportResponse.getNumberOfDocumentsImported() < documents.size()) {
      for(Exception e: bulkImportResponse.getErrors()) {
          // Validate why there were some failures.
          e.printStackTrace();
      }
      break;
   }
 }

 executor.close();
 client.close();