Translations:IT:Servers/24/en
Slave (read-replicate) database servers
This is an elastic group of servers in the private subnet, balanced bewteen zones 1 and 2. These servers play a triple role:
- real time backup
- automated promotion to master in case of failure
- read-access
- any reporting or analysis process that requires only read access to the database is directed to one of the read-replicas. This minimises load on the master database to maximise performance. This is necessary as some of the output reports require extensive and complex database processing, which would otherwise slow down the master database for other requests.