Hard
💼 Technical
[Databases & SQL] Cache Invalidation strategies
Problem Statement
Conceptual Challenge for Cache Invalidation strategies under Databases & SQL:
What are the major cache invalidation strategies, and how do you handle cache-stampede issues?
Discuss the architectural implications.
Proposed Solution
Common invalidation strategies:
- TTL (Time To Live)
- Write-through (writes to cache and DB)
- Write-behind (writes to cache, async to DB)
- Cache Stampede occurs when multiple threads query a cache miss concurrently. Resolved by locking or background pre-fetching.Your Progress
Pending Completion
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