Performance & Benchmarking

Performance Considerations

Component	Key Parameter	Description & Tuning Tips
Debezium	max.batch.size, max.queue.size	Increase to handle high write rates from MariaDB.
Kafka Connect	tasks.max, batch.size, linger.ms	Controls parallelism and batch commit latency.
Exasol JDBC Sink	insert.mode=upsert or insert	Choose depending on CDC requirements.
Exasol	NUM_NODES, DB_RAM_SIZE	Scale based on dataset size and concurrency.
Network	10 Gbps+ recommended	Ensures low-latency data transfer between Kafka and Exasol.

Benchmarking

MariaDB Exa CDC has been tested and is expected to work in near real-time up to 600 TPS from the source MariaDB server side. MariaDB Exa has leading benchmark results for TPC-H.

_{This page is: Copyright © 2025 MariaDB. All rights reserved.}