轮询模式的前提是对目标指标的定期采样。

The premise of a polling pattern is a periodic sampling of a target metric.

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第二个技巧是使用监控收集模式代替轮询模式，从而进一步减少JMX公开内存池的轮询开销。

The second technique is to reduce the polling overhead of the JMX exposed memory pools further by implementing the listening collector pattern instead of a polling pattern.

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FOREST是由纯get或Web轮询用例引申而来的REST模式，包括某些特定类型的混搭，比如feed聚合或筛选器，为其它网页创建摘要的站点，等等。

FOREST is a REST Pattern derived from GET-only or polling Web use-cases, including certain kinds of mashups for e.g. feed aggregators or filters, sites that create summaries of other Web pages etc.

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