### Description Implement database sharding to scale horizontally for large transaction volumes. ### Acceptance Criteria - [ ] Design sharding key strategy - [ ] Implement shard routing logic - [ ] Create shard mapping management - [ ] Implement data migration to shards - [ ] Add shard rebalancing capability - [ ] Create shard monitoring and health checks - [ ] Implement shard failover - [ ] Add comprehensive testing ### Skills Required Database Design, Sharding, Distributed Systems, Node.js
Description
Implement database sharding to scale horizontally for large transaction volumes.
Acceptance Criteria
Skills Required
Database Design, Sharding, Distributed Systems, Node.js