What two actions could you take to rectify this?

Explanations:

Increasing the number of nodes in the cluster distributes the load, reduces contention, and provides more memory, which can help alleviate evictions and reduce cache misses.

Themax_item_sizeparameter controls the size of individual cache items. Tweaking this may help with large items, but it won’t directly address the overall eviction and miss rates caused by insufficient memory.

Shrinking the number of nodes would reduce available memory and processing capacity, worsening evictions and cache misses.

Increasing the size of the nodes provides more memory per node, which reduces evictions due to memory limits and improves the chances of cache hits, reducing GetMisses.