Translations:Administrators/Optimize performance/Database/10/en

If your setup has to handle extremely high traffic and despite of using a database per domain and a cluster of Redis servers for caching, your database still needs to cope with more (read) requests than a single server can answer, using MySQL replication is the solution. You can setup several read-only slave MySQL servers that receive changes from the master while the slave servers only answer the read requests from the web servers.