How can cache miss ratio be <1% but active resident ratio is only 12%?

Couchbase Server
3

I heard back from couchbase support about this and found out Active Resident Ratio is the percentage of ALL your docs in memory. So we had these values because our working set was about less than 12% of our total documents. My original understanding was that Active Resident Ratio meant the % of your Active/working set in memory, which was incorrect and led to my confusion.

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