Finally, each cluster will have a single jobtracker that is responsible for scheduling work at the datanodes and a tasktracker per datanode that performs the actual work.

最后，每个集群有一个jobtracker，它负责调度datanode上的工作。每个datanode有一个tasktracker，它们执行实际工作。

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For example, you could implement these ideas in traditional embedded systems in place of a traditional scheduler for work scheduling.

例如，可以将这些理念应用到传统的嵌入式系统当中，取代原有的调度程序来进行任务调度。

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There are a number of measures employers can take to do this, Ballard said, including: mandating breaks during shifts, scheduling more demanding work for the beginning of shifts, making sure employees have access to healthy food options, installing fitness facilities on premises, providing resources for childcare and involving employees in shift scheduling decisions.

BBC: The cities that never sleep

Seasonal scheduling is when employees work only a certain number of months a year.

NPR: Options On The Flex-Work Menu

Monson's husband is Cirque du Soleil band leader Paul Shihadeh -- they met in a green room -- and she says their two sons have a "crazy life" due to the scheduling challenges of their work.

CNN: STORY HIGHLIGHTS