Topic
RedisAdvancedWhat changes at scale: stampede locks, probabilistic early refresh, stale-while-revalidate, hot keys, negative caching, pipelining, timeouts, circuit breakers, warmup, clustering and alerts.
#caching#nosql#performance
TiDBAdvancedSequential keys send every insert to one Region on one TiKV node. Spot the hotspot, then fix it with AUTO_RANDOM, SHARD_ROW_ID_BITS and pre-split Regions.
#performance#scalability#schema-design
PostgreSQLBeginnerA founder's guide to choosing PostgreSQL or MySQL: team experience, managed hosting, scaling paths, extensions, licensing, switching cost, and a clear "pick PostgreSQL unless" rule.
#db-administration#scalability#schema-design
PostgreSQLBeginnerHow to choose between PostgreSQL, MySQL, SQLite and MongoDB for a web app, where Redis and a search engine fit, a decision table by app type, and when the PostgreSQL default is wrong.
#data-modeling#scalability#schema-design
Apache CassandraBeginnerUnderstand what Apache Cassandra is, how its ring, replication and tunable consistency work, how to model tables in CQL, and when it is the wrong choice.
#data-modeling#scalability
GeneralBeginnerDecide between a relational and a NoSQL database by comparing schema enforcement, query flexibility, transactions, consistency and scaling, with a practical checklist.
#nosql#scalability
