从用户角度看来，这很不理想，因为用户更喜欢输入数据时能得到实时反馈。
This is far from ideal from a user perspective, as they prefer real-time feedback when they are inputting data.
具有故障转移功能的可伸缩集群在数据仍然在运动的同时仍然能够高效地处理实时反馈，并且都在商业机器上完成。
Real-time feeds can be processed efficiently while the data is still in motion, running on scale-out clusters with fail-over capability, and all performed on commodity machines.
例如，假设实时数据包含来自客户呼叫中心的音频反馈。
For example, assume that the real-time data contained audio feeds from customer call centers.
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