In this article, we break down how Uber built this system, the challenges they faced, and the innovative solutions they developed.
regarding:
> For the next hour, assuming a one-hour TTL, every read request will return the one-year-old cached data
In the previous statement you mentioned:
> Most engineers assume that if you set a TTL of 5 minutes, stale data will exist for at most 5 minutes. This assumption is incorrect.
so how does it changed from 5mins to 1hour?
regarding:
> For the next hour, assuming a one-hour TTL, every read request will return the one-year-old cached data
In the previous statement you mentioned:
> Most engineers assume that if you set a TTL of 5 minutes, stale data will exist for at most 5 minutes. This assumption is incorrect.
so how does it changed from 5mins to 1hour?