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  1. Mesos
  2. MESOS-7937

Make framework count metrics constant time.

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      In the master metrics, various framework counters are implemented by a `Gauge` metric that `defers` to a linear scan of the frameworks (eg. MESOS-7747). This means that when we sample the metrics, there will be a N serialized loops over all the frameworks, so the cost of sampling master metrics will be very high for sites that have a large number of frameworks, and sampling the metrics will reduce master responsiveness.

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            • Assignee:
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              Reporter:
              jamespeach James Peach
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