Databases

YouTube runs a large MySQL database to hold the metadata about its videos. As YouTube scaled, the database was sharded, and applications within YouTube had to write queries that were

Applications built in the cloud are often serving requests from all around the world. A user in Hong Kong could have written to a database entry at the moment just before a user in San

Different databases have different access patterns. Key-value, document, graph, and columnar databases are useful under different circumstances. For example, if you are a bank, and you

Firebase is a backend-as-a-service. The key efficiency of a backend-as-a-service is that it enables developers to go from having a 3-tier architecture (client, server, database) to a

Search is a common building block for applications. Whether we are searching Wikipedia or our log files, the behavior is similar: a query is entered and the most relevant documents are