Scaling up: the dispatcher thread.
向上扩展：调度程序线程。
It will be useful to recognize when we have reached the limit of the dispatcher thread.
知道何时达到调度程序线程的限制非常有用。
Each application server would then perform its own dispatching within itself, using its own dispatcher thread.
然后，每个应用程序服务器都将使用自己的调度程序线程在其内执行自己的分派。
Unfortunately, it is difficult to estimate the amount of concurrency supported by a single dispatcher thread on this kind of system.
遗憾的是，难以评估这种系统中单个调度程序线程支持的并发数。
This transforms the main thread of the calling process into the control dispatcher.
这将把调用进程的主线程转换为控制分派器。
Because of the stateful way propagation tracks which (successively less specific) rules have been called, a dispatcher is not thread safe.
由于传播采用有状态方式跟踪调用了哪些(依次不太特定的)规则，所以分派器不是线程安全的。
The calling thread must be the same as the dispatcher.
调用线程必须和调度程序相同。
The calling thread must be the same as the dispatcher.
调用线程必须和调度程序相同。
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