In other words, the cloud controller, cluster controller, and storage controller run on the front end machine.
换句话说，云控制器、集群控制器和存储控制器在前台机器上运行。
It queries node managers for information about resources, makes high level scheduling decisions, and implements them by making requests to cluster controller.
它向节点管理员询问资源信息，做出高级计划决策，并通过向集群控制器发出请求来实现。
When dynamic clusters are running in automatic mode, the application placement controller can bring down a cluster member without the direct involvement of an administrator.
当动态集群在自动模式下运行时，应用程序位置控制器将在管理员不直接参与的情况下停止一个集群成员。
The other action it can take is to suggest to the Application Placement Controller that additional capacity should be brought online by starting additional servers in a dynamic cluster.
另一个措施是建议ApplicationPlacementController 在动态集群中启动更多服务器，从而提供更多处理能力。
In a WebSphere Virtual Enterprise environment, the application placement controller can make run time decisions on how many dynamic cluster members need to run and where.
在WebSphereVirtualEnterprise环境中，应用程序位置控制器(placement controller)可以就需要运行多少动态集群成员以及在哪里运行制定运行时决策。
White boxes are interchangeable, and the main application may assign any machine in the cluster as the controller, and this one in turn assigns map or reduce tasks to other connected white boxes.
白盒子是可互相交换的，主应用程序可能把集群中的任何机器指派为控制者，而这个机器就把map和reduce任务分派给其它连接的白盒子。
White boxes are interchangeable, and the main application may assign any machine in the cluster as the controller, and this one in turn assigns map or reduce tasks to other connected white boxes.
白盒子是可互相交换的，主应用程序可能把集群中的任何机器指派为控制者，而这个机器就把map和reduce任务分派给其它连接的白盒子。
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