PostgreSQL: Features new in 7.4: Commercial level asynchronous master-slace replication

  • eRServer: Donated by PostgreSQL, Inc (www.pgsql.com)
  • Asynchronous: not real time
  • Designed for high availability/continuity
  • Can be used for performance for some applications
  • Has been used by .org registrars (now using latest version, not (yet) open)
  • Supports multiple slaves
  • Logs updates to selected tables and pushes updates out to slaves
  • Problems:
    • Not integrated into native code
    • Mostly written in Java (requires additional admin, etc)
    • Doesn't meet all replication requirements
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