Performance on João Vieira (JV) https://joaovieira.ca/tags/performance/ Recent content in Performance on João Vieira (JV) João Vieira (JV) https://joaovieira.ca/profile.jpeg https://joaovieira.ca/profile.jpeg Hugo en-us Wed, 03 Jun 2026 22:30:00 -0800 MongoDB Server Timeout: When Client Timeouts Aren't Enough https://joaovieira.ca/mongodb-server-timeout/ Wed, 03 Jun 2026 22:30:00 -0800 https://joaovieira.ca/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. JPA Delete Queries and Optimistic Locking: Why Batching Fails https://joaovieira.ca/jpa-delete-all-query-not-batching/ Thu, 22 Jan 2026 22:30:00 -0800 https://joaovieira.ca/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. The importance of the prefetch count in RabbiMQ consumers https://joaovieira.ca/rabbitmq-prefetch-count/ Sat, 24 Jun 2023 08:57:50 -0700 https://joaovieira.ca/rabbitmq-prefetch-count/ Prefetch count is a very important parameter that we have when configuring consumers in RabbitMQ, this real-case scenario shows an example of this Cache in a microservice environment: A short overview https://joaovieira.ca/cache-overview/ Mon, 07 Nov 2022 20:25:46 -0800 https://joaovieira.ca/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