此类限制通常是对应用程序的某些部分实施的，比如中断处理程序，其响应中断的代码必须在给定的时间范围内完成工作。
Such restrictions are typically placed on sections of the application such as an interrupt handler, where the code responding to the interrupt must complete its work in a given time period.
首先，它能对最大或平均响应DRM服务器时间实施限制。
First, it can impose limits on maximum and average response DRM server times.
如果没有在峰值负载下积极测试和验证集群，那么在真正发生故障时，故障转移的一端可能受到资源限制，响应时间较长，甚至出现故障。
If you do not actively test and validate your clustering during peak loads, during an actual failure the failover side can become constrained and deliver poor response times or even fail.
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