VERA Engine. Stream Processing, Supercharged.
- 2x the throughput
- 40% lower cost
- Sub-10ms latency
Binary-compatible with Apache Flink. Every existing Flink job runs faster. Zero code changes.
What Is the VERA Engine?
VERA is Ververica's proprietary stream processing engine. It is binary-compatible with Apache Flink, meaning every existing Flink application runs on VERA without code changes. VERA delivers 2x throughput, 52% lower resource usage, and sub-10ms latency through adaptive query planning, optimized memory management, and operator fusion.
Performance Advantages
Engine Behind the Platform

2x Throughput
VERA processes double the volume of open-source Apache Flink on identical hardware. Benchmarked on production workloads, not synthetic tests. Same data, same jobs, twice the speed.
40% Lower TCO
Total cost of ownership reduction across compute, operations, and infrastructure. Fewer nodes for the same workload. Lower cloud spend. Smaller operational team.
Sub-10ms Latency
End-to-end processing latency at the 99th percentile under sustained load. From record ingestion to output delivery. Measured, not estimated.
6.9B Records/Sec
Peak throughput on production-grade hardware. Processing at a scale that covers the largest enterprise workloads on the planet.
52% Lower Resource
Same workload. Fewer CPUs. Less memory. Smaller cluster. The efficiency gains compound at scale.
Five proprietary optimizations working together.
How Does VERA Achieve 2x Performance?

Adaptive Query Planning
VERA analyzes data characteristics at runtime and adjusts execution plans continuously. Static query plans waste resources on changing data. Adaptive plans do not.
Optimized Memory Management
Custom memory allocation reduces garbage collection pressure. Off-heap state storage eliminates JVM pauses. Predictable latency under sustained high throughput.
Operator Fusion
VERA merges multiple operators into single execution units where safe. Fewer serialization boundaries. Fewer network shuffles. Less overhead per record.
Advanced State Backend
Purpose-built state backend optimized for streaming access patterns. Faster state reads and writes. Incremental checkpointing with minimal I/O overhead.
JIT Compilation
Just-in-time code generation for SQL queries and user-defined functions. Machine-optimized execution paths generated at deployment time, not interpreted at runtime.
VERA Key Capabilities
Binary Compatibility
Run any existing Apache Flink application on VERA. JARs, connectors, UDFs, and libraries. No recompilation. No code changes. Drop in and run faster.
SQL and DataStream API
Full Flink SQL support for declarative stream processing. Full DataStream API for programmatic control. Both run on the same optimized engine.
State Management
Maintain state across billions of keys with exactly-once guarantees. Queryable state for external access. State migration between application versions without downtime.
Intelligent Auto-Scaling
VERA monitors throughput, backpressure, and resource utilization. Scales parallelism up during traffic spikes and down during quiet periods. No over-provisioning. No manual scaling.
Event Time and Watermarks
Process events based on when they occurred, not when they arrived. Watermark tracking handles late and out-of-order data correctly across distributed processing.
Distributed Checkpointing
Incremental checkpoints with minimal performance impact. Configurable intervals. Automatic recovery from any failure. Zero data loss guaranteed.
VERA Engine vs.
Open-Source Apache Flink
| Capability | VERA Engine | Open-Source Flink |
|---|---|---|
| Throughput | 6.9B records/sec | ~3.4B records/sec |
| Latency (p99) | Sub-10ms | 20-50ms |
| Resource Efficiency | 52% lower | Baseline |
| TCO | 40% lower | Baseline |
| Auto-Scaling | Built-in, adaptive | Manual or basic reactive |
| Query Optimization | Adaptive, runtime | Static plan |
| State Backend | Optimized, proprietary | RocksDB |
| Multi-Tenancy | Native | Not supported |
| Governance | RBAC, audit, lineage | Not included |
| Managed Operations | Full platform | DIY |
| Binary Compatibility | Full Flink API | N/A |
| Enterprise Support | 24/7, SLA-backed | Community |
Frequently Asked Questions
01What is the VERA engine?
What is the VERA engine?
VERA is Ververica's proprietary stream processing engine, binary-compatible with Apache Flink. It delivers 2x throughput through adaptive query planning, optimized memory management, and operator fusion. Every Flink application runs on VERA without code changes.
02Is VERA a fork of Apache Flink?
Is VERA a fork of Apache Flink?
No. VERA is binary-compatible with Flink, not a fork. It replaces critical execution paths with proprietary optimizations while maintaining full API compatibility. All Flink connectors, libraries, and applications run unchanged on VERA.
03Can I migrate from open-source Flink to VERA without code changes?
Can I migrate from open-source Flink to VERA without code changes?
Yes. Take your existing Flink application JAR and deploy it on the Ververica Platform. No recompilation, no code changes, no connector rewrites. VERA applies all optimizations automatically. State snapshots from open-source Flink are compatible.
04How does VERA achieve 2x throughput?
How does VERA achieve 2x throughput?
Five optimizations: adaptive query planning adjusts execution at runtime, optimized memory management reduces GC pressure, operator fusion merges execution units, an advanced state backend accelerates reads and writes, and JIT compilation generates machine-optimized code.
05Does VERA support exactly-once processing?
Does VERA support exactly-once processing?
Yes. VERA provides end-to-end exactly-once semantics through distributed checkpointing, two-phase commit sinks, and transactional state management. Every record is processed exactly once, even during failures and recovery.
06What programming languages does VERA support?
What programming languages does VERA support?
VERA supports Flink SQL, Java, Python, and Scala. SQL analysts and software engineers work on the same engine. All four interfaces produce applications that benefit from VERA's performance optimizations equally.

Run Your Flink Jobs 2x Faster
Same code. Same connectors. Double the throughput. 40% lower cost. Deploy your existing Flink application on VERA today.