Sharp drop in replica resident ratios on Destination clusters only, XDCR.

Seeing heavy eviction on the resident items only on some large-scale testing.

On a 10 node cluster, 3 nodes drop from 100 percent resident to < 20 percent replica resident ratios.
The active items are less strongly evicted.

With the current eviction logic, this could be expected behaviour
Aggresive replica item eviction[Non recently used items], less aggresive on active items.

However in case of situations like failover/ where-in replica items are needed, this might be an issue.

Can try working around following to observer more on this behaviour

• access scanner frequency and eviction
• item pager

Adding some screenshots from the cluster.