One particular detail to note is that there is a single instance of a MessageProcessor for each processing unit partition.
有一个特殊细节值得一提：每个处理单元分区都有一个单一的MessageProcessor实例。
One particular detail to note is that there is a single instance of a MessageProcessor for each processing unit partition.
有一个特殊细节值得一提：每个处理单元分区都有一个单一的MessageProcessor实例。
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