⚡ Bolt: Prevent L1 cache memory exhaustion via FIFO size limit - #20
⚡ Bolt: Prevent L1 cache memory exhaustion via FIFO size limit#20suranig wants to merge 2 commits into
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Added a MAX_L1_CACHE_SIZE limit to the L1 in-memory cache to prevent memory exhaustion DoS when caching numerous distinct keys. Implemented a fast FIFO eviction policy using Map.prototype.keys().next().value. Co-authored-by: suranig <24814104+suranig@users.noreply.github.com>
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Added a MAX_L1_CACHE_SIZE limit to the L1 in-memory cache to prevent memory exhaustion DoS when caching numerous distinct keys. Implemented a fast FIFO eviction policy using Map.prototype.keys().next().value. Includes test coverage for the eviction behavior. Co-authored-by: suranig <24814104+suranig@users.noreply.github.com>
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💡 What: Introduced a
MAX_L1_CACHE_SIZEof 1000 items and implemented an O(1) FIFO eviction policy usingMap.prototype.keys().next().valueto manage the L1 in-memory cache safely.🎯 Why: Without a size limit, the in-memory
Mapcould grow indefinitely when handling requests with dynamically generated, distinct cache keys. This risks memory exhaustion leading to degraded application performance due to excessive garbage collection, or potentially causing application crashes from Out-Of-Memory (OOM) errors (a form of Denial of Service vector).📊 Impact: Prevents memory leaks on the L1 cache. The application's memory usage is now strictly bounded for in-memory caching overhead.
🔬 Measurement: Verify by examining test suite execution and confirming no memory-related regression. Long-running profiles on heavily trafficked endpoints with randomized cache keys will confirm bounded memory allocation.
PR created automatically by Jules for task 934691618872139084 started by @suranig