Concerning building applications, there's vital to appreciate the contrasting roles of HLD and LLD . HLD provides a overall picture of the system , illustrating the major components and their interactions omitting detailed execution specifics. Conversely , Detailed design descends into the pract

Caching Strategies Start With One Question: How Stale Can This Data Be? Most caching answers jump straight to Redis. The stronger answer starts one step earlier. Caching is a deliberate trade of freshness for speed, so the first thing to establish is how much staleness t