Amazon S3
Amazon S3 for DVA-C02. Storage classes, versioning, lifecycle policies, presigned URLs, encryption (SSE-S3, SSE-KMS, SSE-C), CORS, event notifications, multipart uploads, and cross-region replication.
Amazon S3 for DVA-C02. Storage classes, versioning, lifecycle policies, presigned URLs, encryption (SSE-S3, SSE-KMS, SSE-C), CORS, event notifications, multipart uploads, and cross-region replication.
A deep dive into Elasticsearch internals — covering the inverted index structure, node roles, sharding, document write path, and search query execution.
A complete guide to Kafka brokers — what they are, how storage works, partition leadership, replication, ISR, KRaft vs ZooKeeper, log compaction, performance internals, and production monitoring. Beginner through senior depth.
MirrorMaker 2 cross-cluster replication for disaster recovery, active-active, and hub-and-spoke. Covers architecture, offset translation, failover, Kubernetes deployment, and monitoring.
PostgreSQL Write-Ahead Logging and replication mechanics: why a no-op UPDATE generates 380MB of WAL, replication lag causes, orphan replication slots exhausting disk, silent archive_command failures, and the 2 AM 95% disk emergency playbook.
Redis replication mechanics, Sentinel for HA failover, Redis Cluster sharding, and production deployment patterns for senior engineers.
Database replication strategies, sharding patterns, the CAP theorem, and horizontal scaling techniques.
The replication factor defines how many copies of each partition exist across the cluster to guarantee fault tolerance and high availability.
Advanced S3 topics for DVA-C02. Cross-Region Replication, Same-Region Replication, S3 Transfer Acceleration, Object Lambda, MFA Delete, S3 Select, Requester Pays, and event processing patterns.