VoltDB

About VoltDB

An in-memory, ACID-compliant relational database that uses a shared-nothing architecture for horizontal scalability. VoltDB is designed for applications requiring high-velocity data ingestion with real-time decisioning and analytics.

Key Features

• 1In-memory relational database designed for high-throughput OLTP at scale
• 2Stored procedures in Java executed as single-partition ACID transactions
• 3Continuous export streams data changes to Kafka or Hadoop in real time
• 4K-safety replication ensures durability without disk I/O overhead
• 5Deterministic query execution eliminates lock contention

How Python Data Engineers Use VoltDB

Python data engineers interact with VoltDB using the `voltdb` Python client to submit fast transactional operations at microsecond latency. A common use case is a real-time data enrichment pipeline — Python publishes events to VoltDB's stored procedures for in-memory joins and aggregations, then VoltDB's export connector streams results to Kafka for downstream consumers.