Self-Healing and Failover Mechanisms

Self-Healing and Failover Mechanisms

In a truly decentralized environment, nodes may go offline unexpectedly—whether due to power loss, network outages, or hardware faults. Nodia’s network is engineered for automatic detection and seamless recovery, ensuring uninterrupted service and near-100 % availability.

1. Heartbeat & Health Monitoring

   • Frequent Heartbeats: Every node emits a signed “I’m alive” heartbeat every 30 seconds, including a snapshot of CPU/GPU load, memory usage, and network health.

   • Anomaly Detection: Heartbeats missing for more than two intervals flag the node as “unreachable.” Concurrently, latency spikes or error rates above threshold trigger health alerts.

2. Automated Task Reassignment

   • Re-sharding: Shards that were in-flight to an offline node are promptly re-encrypted and re-sharded by smart contracts.

   • Rapid Dispatch: These shards are redistributed to the next-best-scoring nodes based on the same scoring logic, guaranteeing no compute jobs remain stranded.

3. Network Topology Adjustments

   • Dynamic Peer Graph: Each node maintains a routing table of peers. Failed nodes are automatically pruned, and new healthy nodes are added via peer-discovery broadcasts.

   • Resilient Mesh Paths: By constantly recalculating multiple redundant paths, the mesh ensures data flow reroutes instantly around outages.

4. State Re-Synchronization

   • Recovery Handshake: When an offline node comes back online, it performs a secure handshake with a set of bootstrap peers. It downloads missed blockchain events and pending assignments to resynchronize with the current network state.

   • Gradual Reintegration: To prevent sudden load spikes, rejoining nodes initially receive light workloads—gradually ramping up as they demonstrate stability.

5. Governance & Quarantine

   • Quarantine Period: Nodes with repeated failures enter a probationary quarantine, limiting high-value assignments until they maintain a clean 12-hour uptime streak.

   • Community Feedback: Persistent problem nodes can be subject to community governance votes, temporarily disabling them to protect network integrity.

By embedding these self-healing and failover strategies, Nodia achieves a level of reliability on par with centralized data centers—yet without compromising on decentralization, censorship resistance, or security.