第二个块检索发货地址和帐单地址以及信用卡信息，然后邮寄帐单。
The second block retrieves the shipping and billing addresses, and the credit card information, then ships the order.
它们存储和检索数据块(受客户端或者namenode通知)，并且周期性的向namenode报告它们所存储的块列表信息。
They store and retrieve blocks when they are told to (by clients or the namenode), and they report back to the namenode periodically with lists of blocks that they are storing.
它们存储和检索数据块(受客户端或者namenode通知)，并且周期性的向namenode报告它们所存储的块列表信息。
They store and retrieve blocks when they are told to (by clients or the namenode), and they report back to the namenode periodically with lists of blocks that they are storing.
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