最后一项任务是将使用存储在应用程序中的信息来查找和处理所有可应用的子文档。
The final task is to use the stored information in your application to find and process all applicable subdocuments.
JobTracker作为启动MapReduce应用程序的单一控制点，它决定应该创建多少个TaskTracker和子任务，然后把每个子任务分配给TaskTracker。
The JobTracker, as the single control point for launching the MapReduce applications, decides how many TaskTracker and subordinate tasks to be created and then assigns each sub-task to TaskTracker.
Cheat Sheet是一个程序，它可以帮助您完成涉及一系列不同子任务的复杂任务。
A Cheat Sheet is a program that helps you accomplish a complex task that involves a variable series of subtasks.
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