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Deep dives on PostgreSQL, MySQL, MongoDB and more — performance tuning, high availability, migrations and production war stories from our DBAs.
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Kafka 4.0 Without ZooKeeper: KRaft Migration for CDC Pipelines
Move a ZooKeeper-mode Kafka cluster to Kafka 4.x through the 3.9 bridge: controller quorum design, migration phases, rollback points, and what to check in Debezium and Connect.
Kafka19 minNov 8, 2026
ReadMongoDB Change Streams in Production: Resume Tokens and the Oplog Window
Run MongoDB change streams in production: store resume tokens durably, size the oplog window, recover from ChangeStreamHistoryLost, and choose updateLookup or pre-images.
MongoDB19 minOct 25, 2026
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