Database Insights

Debezium reads MySQL binary logs and PostgreSQL WAL to stream every row-level change as a Kafka event in near real-time — replacing nightly batch ETL with sub-second data propagation.

Stream PostgreSQL changes to Kafka using pgoutput and Debezium — setup, monitoring, and lag management

Patroni automates PostgreSQL failover using a distributed consensus store like etcd. Learn how to configure Patroni for production-grade HA.

Build a production-grade PostgreSQL HA stack using Patroni for failover and HAProxy for connection routing

Replicate OLTP databases to analytical warehouses — CDC, bulk load, incremental sync, and schema evolution handling

Monitor PostgreSQL streaming replication lag, replication slots, and standby health to ensure HA readiness

Build a MySQL CDC pipeline using binlog and Kafka — Debezium, Maxwell, or Canal — trade-offs and production setup

A complete guide to PostgreSQL replication — streaming replication setup, logical replication for selective table sync, synchronous standby configuration, monitoring replication lag, and failover with Patroni.

Configure PostgreSQL logical replication for selective table sync, zero-downtime upgrades, and multi-tenant setups

Understand Kafka from a database perspective — partitions, offsets, consumer groups, and durability guarantees

MySQL replication filters let you replicate only specific databases or tables — but misconfiguration can silently drop transactions. Here's how to use binlog-do-db, replicate-do-db, and replicate-do-table safely.

A comprehensive guide to MySQL replication lag — why it happens, why Seconds_Behind_Master lies, how to measure accurately with pt-heartbeat, and how to fix it with multi-threaded replication and LOGICAL_CLOCK parallelism.