crdts

CRDTs (Conflict-Free Replicated Data Types) are data structures that ensure consistency and availability in distributed systems by allowing concurrent updates without conflicts. They solve multi-master replication issues by mathematically merging divergent data copies automatically.

You can build offline-first apps with reliable data replication by integrating CRDTs like G-Counters and OR-Sets. These data structures allow local operations while disconnected and automatically synchronize changes when network connectivity resumes without manual conflict resolution.

You need CRDTs for collaborative text editing when multiple users concurrently modify the same document across distributed networks. CRDTs ensure every edit operation merges deterministically, preventing data loss and avoiding the need for central locking mechanisms.

Yes, you can use CRDTs for multi-region active-active database replication. They enable concurrent writes across multiple geographic regions by guaranteeing eventual consistency through deterministic merge functions, eliminating the need for distributed locks.

A G-Counter is a grow-only counter CRDT used for tracking monotonically increasing values across distributed nodes, while an OR-Set (Observed-Remove Set) allows adding and removing elements by tracking unique tags, making it suitable for dynamic collaborative data.

CRDTs for distributed data synchronization require additional metadata to track operations and resolve merges, which increases storage overhead. They also demand strict adherence to mathematical merge rules, and complex state-based CRDTs can consume significant bandwidth during synchronization.