# How we standardized MariaDB in our Integration Server

DevFeed: [How we standardized MariaDB in our Integration Server](<https://devfeed.tech/articles/how-we-standardized-mariadb-in-our-integration-server-20462.md>)

Original publisher: [Read original article](<https://eng.wealthfront.com/2026/03/26/how-we-standardized-mariadb-in-our-integration-server/>)

Author: Eloy Gonzalez

Published: 2026-03-26T18:59:43Z

Content type: article

Language: en

Sources: [Wealthfront](<https://devfeed.tech/sources/wealthfront.md>)

Topics: [MariaDB](<https://devfeed.tech/topics/mariadb.md>), [Testing](<https://devfeed.tech/topics/testing.md>), [migration](<https://devfeed.tech/topics/migration.md>), [Databases](<https://devfeed.tech/topics/databases.md>), [Jenkins](<https://devfeed.tech/topics/jenkins.md>), [CI/CD](<https://devfeed.tech/topics/cicd.md>), [Back end](<https://devfeed.tech/topics/backend.md>)

Tags: [architecture](<https://devfeed.tech/tags/architecture.md>), [backend](<https://devfeed.tech/tags/backend.md>), [careers](<https://devfeed.tech/tags/careers.md>), [ci-cd](<https://devfeed.tech/tags/ci-cd.md>), [data](<https://devfeed.tech/tags/data.md>), [engineering-culture](<https://devfeed.tech/tags/engineering-culture.md>), [hibernate](<https://devfeed.tech/tags/hibernate.md>), [infrastructure](<https://devfeed.tech/tags/infrastructure.md>), [integrity](<https://devfeed.tech/tags/integrity.md>), [jenkins](<https://devfeed.tech/tags/jenkins.md>), [locking](<https://devfeed.tech/tags/locking.md>), [migration](<https://devfeed.tech/tags/migration.md>), [modularization](<https://devfeed.tech/tags/modularization.md>), [production](<https://devfeed.tech/tags/production.md>), [sql](<https://devfeed.tech/tags/sql.md>), [testing](<https://devfeed.tech/tags/testing.md>), [tests](<https://devfeed.tech/tags/tests.md>), [wealthfront-engineering](<https://devfeed.tech/tags/wealthfront-engineering.md>)

## AI overview

Wealthfront describes migrating its Integration Server from HSQLDB to MariaDB to improve parity with production. The article covers the migration strategy, architectural hurdles, and benefits for data integrity, concurrency, locking, and production-like testing.

## Source excerpt

Engineering at Wealthfront is centered on the idea that code should be written to facilitate testing, not the other way around. Without a staging environment to fall back on, we maximize confidence through a sophisticated, multi-layered testing strategy. While unit tests provide our most rigorous line of defense, our Integration Server is the workhorse that... Read more