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  1. Couchbase Server
  2. MB-35241

Add age histograms to eviction stats

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      In the course of some eviction algorithm troubleshooting, it was discovered that it would be very useful to have histograms for item age similar to the histograms already in place for frequency counter:

      1) Histogram of the age of items evicted

      2) Histogram of the age of items currently in the hash table (across all vbuckets on a node)

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            owend Daniel Owen
            perry Perry Krug
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                PagerDuty