Harshit Mehra — Engineering NotesNotes on system design, distributed systems, backend engineering, and software architecture.https://harshitmehra.com/Understanding Idempotency in Distributed Systemshttps://harshitmehra.com/blog/idempotency/https://harshitmehra.com/blog/idempotency/Designing operations that are safe to retry.Mon, 02 Nov 2026 00:00:00 GMTDatabase Replication: Leaders and Followershttps://harshitmehra.com/blog/database-replication/https://harshitmehra.com/blog/database-replication/A short note on the shape of a replicated write path.Fri, 30 Oct 2026 00:00:00 GMTWhy Do We Need Consistent Hashing?https://harshitmehra.com/blog/consistent-hashing/https://harshitmehra.com/blog/consistent-hashing/Understanding the problem that consistent hashing solves.Wed, 28 Oct 2026 00:00:00 GMT