除了队列和主题之外，客户还跟踪集群中管道和队列的状态。
In addition to queues and topics, the cluster also tracks the state of the channels and queue managers in the cluster.
PostRank的discovery engine跟踪这些feed的受欢迎情况，然后在主题列表中进行分级排列。
The PostRank discovery engine keeps track of how popular feeds are getting, and will take that in to account for their placement in the topic lists as well.
这个工具对于那些想要轻便地跟踪关键字和话题，特别是热门主题的人来说非常有用。
This tool is very useful for anyone wanting a lightweight way to watch keywords and topics, especially if they are topical memes.
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