Use common technique in monitor code to rate limit refreshing data #4885
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enhancement
This issue describes a new feature, improvement, or optimization.
Milestone
Is your feature request related to a problem? Please describe.
The monitor has a pattern of only fetching data from other severs in the system periodically. The actual code for implementing this common pattern differs.
Describe the solution you'd like
In #4867 this was done using Suppliers.memoize for external compactions. In #4867 it was suggested that other code in the monitor could use Suppliers.memoize or possibly a guava cache.
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