Built to Never Pause:
High Availability for Real-Time Data
When infrastructure fails, decisions continue.
Volt High Availability keeps real-time decisions correct, consistent, and continuous — through hardware failures, node crashes, and network issues, with no data loss, no manual failover, and no degraded behavior.
High Availability Isn’t About “Up.” It’s About “Correct.”
Servers fail. Disks crash. Networks partition. At scale, failure is constant.
Traditional high availability was designed for batch systems and stateless services. In those systems, brief outages were acceptable. Data could be replayed, and failover could take seconds.
However, that model collapses in real-time decision systems.
When a decisioning system fails:
- Fraud controls stop
- Usage enforcement pauses
- Revenue halts
- SLAs break
- AI agents lose access to operational intelligence
In mission-critical systems, a delayed decision is a wrong decision.
High availability isn’t just staying online. It’s staying correct, consistent, and continuous while components fail.
Redundancy by Design. Not Recovery by Hope.
Volt achieves 99.999% availability through synchronous redundancy, not reactive failover.
K-Safety Redundancy
Configurable redundancy (K=0, 1, 2) maintains multiple synchronized copies of every partition. Lose one node (or even two) and operations continue uninterrupted.
Sub-Millisecond Failure Detection
Heartbeat monitoring detects node failures in milliseconds. Failover completes before applications notice.
No Single Points of Failure
No master node. No central coordinator. The architecture eliminates bottlenecks instead of protecting them.
Silent Node Rejoins
Recovered nodes automatically resynchronize and rejoin the cluster without disruption. The system self-heals while processing events.
If a node fails, decision authority continues instantly. No lost transactions. No operator intervention.
How High Availability Works in Volt
No Kubernetes-driven failover delays.
No manual runbooks.
Synchronous Replication: Every write is replicated to K+1 nodes before acknowledgment. As a result, there are no lost decisions.
Automatic Leader Election: If a partition leader fails, a replica takes over instantly. Because this process is automatic, no manual intervention is required.
Transaction Continuity: Failures are detected in milliseconds. Therefore, in-flight transactions complete without interruption or data loss.
Self-Healing Cluster: In-flight transactions complete successfully even during node failures. No external orchestration is required.
External Orchestration-Free: Recovered nodes stream missing updates and resume full participation automatically. As a result, the cluster heals itself without operator involvement.
What High Availability Delivers
- Survive hardware failures automatically
- Maintain decision authority during maintenance
- Eliminate manual recovery procedures
- Guarantee transaction integrity
- Achieve five nines availability (<6 minutes downtime/year)
- Protect revenue and customer experience
Failures become invisible to applications and end users.
Ready for True High Availability?
See how Volt maintains authoritative decisioning through hardware failures, software bugs, and infrastructure chaos, without data loss or operational drama.
Latest from Volt
Learn how real-time decisioning is implemented with Volt through technical deep dives, case studies, on-demand webinars, and expert insights.