KPI 历史记录请求是异步的;可以在验证数据并完成错误处理后发出事件。
The KPI history requests are asynchronous; an event can be dispatched after you have verified the data and finished the error handling.
通过MapReduce的抽象,google工程师可以简单地进行运算,而不必考虑并行运算的细节、数据的分配、负载平衡和错误处理。
MapReduce is an abstraction that allows Google engineers to perform simple computations while hiding the details of parallelization, data distribution, load balancing and fault tolerance.
编程基础(变量,数据类型,引用,指针,作用域,错误处理,迭代,核心算法-搜索,排序等)
The basics of Programming (variables, data types, references, pointers, scope, error handling, iteration, core algorithms - searching, sorting, etc.)
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