Database Insights

Deploy PgBouncer in transaction mode for high-concurrency PostgreSQL workloads — config, monitoring, and tuning

A practical guide to Redis use cases in production — cache-aside pattern, sliding window rate limiting, Pub/Sub vs Streams, BRPOP queues with delayed job scheduling, and session storage with persistence configuration.

Build blazing-fast analytics with ClickHouse columnar database. Learn MergeTree engine, data modeling, query optimization, and cluster deployment strategies.

A comprehensive guide to database connection pooling — comparing PgBouncer, ProxySQL, and HikariCP with configuration examples, pool mode trade-offs, and production sizing recommendations.

Understand MySQL max_connections, thread caching, and connection pool sizing to handle high-concurrency workloads

Deep dive into advanced database indexing strategies including composite indexes, covering indexes, and partial indexes. Optimize query performance with expert indexing techniques.

MySQL's EXPLAIN command reveals exactly how the query optimizer plans to execute your SQL — which indexes it will use, how many rows it expects to examine, and where it may sort or create temporary tables.

Choose the optimal EC2 instance for your database workload. Compare R, X, I, and Graviton families with real-world benchmarks and cost-performance analysis.

Explore the trade-offs between database normalization and denormalization for optimal performance. Learn when to normalize for data integrity and when to denormalize for query speed.

Configure MySQL timeout variables correctly for your workload. Learn wait_timeout, interactive_timeout, lock_wait_timeout, and net_read_timeout best practices.

Choose between ElastiCache Redis and Memcached — data structures, persistence, replication, and cost considerations

A production guide to MySQL slow query log — enabling with long_query_time and log_queries_not_using_indexes, analyzing with pt-query-digest, reading EXPLAIN output, and fixing full table scans and N+1 loops.