... 资料协调委员会 data coordinating committee 数据协调者 data coordinator 数据协调与检索器 data coordinator and retriever，DCR ...
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数据恢复使用基于事务状态的规则，其中事务状态是由协调器和参与者记录的。
Data recovery USES rules based on the state of the transaction as recorded by the coordinator and participants.
后续请求也被同等对待：客户端总是联系中心协调者节点，而协调者节点会从正确的节点检索数据。
Subsequent requests are treated similarly: the clients always contact the central coordinator node, and the coordinator node retrieves the data from the correct node.
众多支持者认为使用磁盘存储在线数据会产生很多问题，无法实现优雅地可伸缩性，而磁盘容量也会不断膨胀——访问延迟与带宽并非协调一致。
Proponents make the case that disk-oriented approaches to online storage are problematic, do not scale gracefully and while disk capacity has exploded — access latency and bandwidth has not kept pace.
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