Kafka exactly-once semantics transaction coordinator commit protocol diagram
Data Engineering

Kafka Exactly-Once Semantics: The Ultimate 2026 Deep Dive

Kafka exactly-once semantics is the most misunderstood feature in the Apache Kafka toolbox. Most teams flip processing.guarantee to exactly_once_v2, watch duplicates disappear from a test harness, and declare victory. Then a producer stalls at 03:00, [...]
MongoDB Performance Tuning
Data Architecture

MongoDB Performance Tuning: From 1 ms to 100 µs

By the MinervaDB MongoDB Support Team There is a particular moment in database engineering that every serious team eventually faces — the moment when “fast enough” stops being fast enough. You have already indexed your […]
Tuning MariaDB for Cloud
Data Architecture

Tuning MariaDB for Cloud and Containerized Environments

A practical guide to tuning MariaDB for cloud and containerized environments — right-sizing the InnoDB buffer pool, handling cgroup limits in Docker and Kubernetes, taming ephemeral storage and network latency, and building stateful, observable database workloads.

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Connection Pooling
Data Analytics

Connection Pooling Best Practices for MySQL at Scale

A principal database architect’s guide to MySQL connection pooling at scale: right-sizing application pools, ProxySQL multiplexing, tuning max_connections and timeouts, avoiding connection storms, and the metrics that actually matter.

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