feat(cache): compress large Redis payloads with Brotli - #1239
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ayomideadeniran merged 1 commit intoAug 31, 2026
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Add a payload codec that Brotli-compresses cached values above 1KB before they are written to Redis and transparently decompresses on read, in both the Redis binary path and the string-only memory-store fallback. Adds unit tests plus a benchmark measuring ~95% memory savings across 1,000 curriculum trees. Closes StellarDevHub#1139
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Summary
Optimises Redis memory usage by Brotli-compressing large cached payloads (issue #1139).
src/cache/PayloadCodec.tscompresses serialized values >1KB (COMPRESSION_MIN_BYTES) with native Node.js zlib before writing to Redis.CacheService.gettransparently returns the original object on read — in both the Redis binary path (getBuffer) and the string-only memory-store fallback.benchmarks/compression-savings.tsmeasures ~95% memory savings across 1,000 course curriculum trees (7.16 MB → 0.35 MB).src/cache/PayloadCodec.test.tscovers small-payload passthrough, big-payload round-trips (Redis + memory-store), backward compatibility, and confirmed savings.Closes #1139