Implementing HA for databases
HA for databases is the ability of a database system to continue operating even if one or more of its components fail. This is critical for databases that are used for essential applications. There are various ways of accomplishing this:
- Replication: This involves creating multiple copies of the database and storing them on different servers. If one server fails, the other servers can continue to provide access to the database.
- Failover: This involves having a standby server that is ready to take over if the primary server fails. The standby server can be kept in sync with the primary server in real time, or it can be updated periodically.
- Load balancing: This involves distributing the workload across multiple servers. This can help improve performance and availability as it reduces the load on any single server.
- Clustering: This involves grouping several servers so that they work together as a single system. This can help improve performance...