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Improving code quality using parameterized tests of JUnit 5! This article explains the motivation, the basic syntax, different annotations, and IDE-related actions about parameterized tests. Also, when you should or shouldn't use it and how to go further from here.

Part 4: How to create a snapshot for index "transactions" of DVF and restore it to an Elasticsearch cluster.

My tech journey at Datadog in 2020 as a software engineer working for data storage. Also pieces about blogging, open source software VAVR, and other side-projects.

Part 3: How to optmize storage of a given index by 40% using force-merge.

Part 2: Optimize the indexing process using bulk index requests and multi-threading.

Part 1: Indexing new documents into Elasticsearch using French government's open data "Demande de valeurs foncières (DVF)".

8 lessons learned from data deletion: data organization, naming convention, deletion checks, multi-step deleiton, dangling resources, observability, tecnical constraints and verification.

How to make your web application more reliable with feature flags?