PostgreSQL is a popular and powerful open-source relational database. As organizations use it for increasingly complex and mission-critical projects, they want to be sure that their database is available under many circumstances. Even if a server goes down, the database must continue to be available. For this reason, many people have begun to investigate and implement high-availability solutions for PostgreSQL. In this talk, PostgreSQL contributor Dimitri Fontaine reviews the high-availability options available for PostgreSQL users, and the problems that each of them attempts to solve.