The Common Event Infrastructure (CEI) supports the directplacement of a properly formatted CBE XML on its input queue without using their emission APIs.
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。
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Prior versions of Drupal had a clunky ordering and placement interface, but this new option is much more efficient and direct.