https://luizvieira.me/tags/databases/ Recent content in Databases on Luiz Vieira https://luizvieira.me/profile.jpeg https://luizvieira.me/profile.jpeg Hugo en-US Wed, 03 Jun 2026 22:30:00 -0800 https://luizvieira.me/mongodb-server-timeout/ Wed, 03 Jun 2026 22:30:00 -0800 https://luizvieira.me/mongodb-server-timeout/ Discovered why a query ran for 14 hours on MongoDB server despite client timeout: missing server-side timeout configuration. Solutions for MongoClientSettings. https://luizvieira.me/mongodb-observability-spring-data/ Thu, 07 May 2026 18:07:11 -0700 https://luizvieira.me/mongodb-observability-spring-data/ How we improved MongoDB tracing spans in Spring Data by adding a custom command listener to surface query details while keeping sensitive values sanitized. https://luizvieira.me/jpa-delete-all-query-not-batching/ Thu, 22 Jan 2026 22:30:00 -0800 https://luizvieira.me/jpa-delete-all-query-not-batching/ Discovered why JPA deleteAll wasn’t batching: @Version fields force entity loading for optimistic locking. The fix: explicit @Query annotation. https://luizvieira.me/learnings-book-designing-data-intensive-applications/ Thu, 16 May 2024 19:54:35 -0700 https://luizvieira.me/learnings-book-designing-data-intensive-applications/ These are my learnings from the book Designing Data-Intensive Applications https://luizvieira.me/cache-overview/ Mon, 07 Nov 2022 20:25:46 -0800 https://luizvieira.me/cache-overview/ Caching frequently used information is a very good approach to speed up your microservice. In this post we show a brief overview about caching https://luizvieira.me/postgresql-gin-index-long-queries/ Sat, 10 Sep 2022 12:00:05 -0700 https://luizvieira.me/postgresql-gin-index-long-queries/ We were seeing random queries taking as much as 35 seconds on our Postgres DB. The cause was GIN index feature that you have to get to know