System-Design on 1Stophttps://blogs.rameskum.com/tags/system-design/Recent content in System-Design on 1Stop1Stophttps://blogs.rameskum.com/images/og-default.pnghttps://blogs.rameskum.com/images/og-default.pngHugoen-usWed, 23 Sep 2026 08:24:00 -0400Consistent Hashing, Actually Working: From Modulo to a Java Ring with Virtual Nodeshttps://blogs.rameskum.com/posts/consistent-hashing-java-ring-virtual-nodes/Wed, 23 Sep 2026 08:24:00 -0400https://blogs.rameskum.com/posts/consistent-hashing-java-ring-virtual-nodes/Senior interviews keep drifting from LeetCode toward scoped system design, and consistent hashing shows up in both. Build a working hash ring in Java — modulo's failure mode, the ring fix, virtual nodes, tests — plus the Dynamo/memcached lineage and the 2-minute answer.