Writing about software engineering and systems — storage engines, distributed systems, and things that catch my curiosity.https://manojayyanavara.com/https://manojayyanavara.com/blogs/logtreedb-lsm-storage-engine/https://manojayyanavara.com/blogs/logtreedb-lsm-storage-engine/A first-principles write-up on designing a disk-backed key-value storage engine using Log-Structured Merge Tree (LSM) principles — WAL, MemTables, SSTables, Bloom filters, and leveled compaction.Tue, 03 Feb 2026 00:00:00 GMThttps://manojayyanavara.com/blogs/lightshard-sharded-in-memory-kv-store/https://manojayyanavara.com/blogs/lightshard-sharded-in-memory-kv-store/A first-principles write-up on building a sharded, in-memory key-value store — hash-based sharding, per-shard locks, TTL, and a clean gRPC API.Thu, 01 Jan 2026 00:00:00 GMThttps://manojayyanavara.com/blogs/uber-otp-vehicle-number-match/https://manojayyanavara.com/blogs/uber-otp-vehicle-number-match/A ride OTP that matched my Uber's license plate felt like a one-in-a-million miracle — until I did the math. A small lesson in probability and scale.Sun, 21 Sep 2025 00:00:00 GMThttps://manojayyanavara.com/blogs/grpc-for-beginners/https://manojayyanavara.com/blogs/grpc-for-beginners/Why gRPC beats REST for internal microservice communication — Protocol Buffers, HTTP/2, type-safe contracts, code generation, and a practical Spring Boot example.Thu, 01 May 2025 00:00:00 GMThttps://manojayyanavara.com/blogs/a-night-with-the-elephants/https://manojayyanavara.com/blogs/a-night-with-the-elephants/Stuck overnight at the Karnataka border check-post in Mudumalai, our travellers surrounded by a forest full of elephants — and their late-night jackfruit raids. A small travel story.Thu, 22 Oct 2020 00:00:00 GMT