Thinking transparent reconnects of applications is the grail of HA? It is! But Active/Active setups make them risky.
SmartScale is a special mode of the Tungsten Connector (aka Tungsten Proxy), which allows read requests to be intelligently routed to either a replica or the primary to ensure that the data returned is not stale. This feature is available when the Connector is running in the application-layer Proxy mode. Learn more about the behavior of SmartScale in this blog.
How the Continuent Proxy selects database cluster nodes for executing read operations.
View this presentation to learn about two types of (MySQL) database proxies, which we refer to as ‘fast & simple proxy’ and ‘intelligent proxy’; and how transparent failover and read-write splitting works for these.
Watch our new on-demand webinar: “An introduction to database proxies (for MySQL)”. From a simple database connectivity scenario all the way through to advanced database connectivity setups and proxy functionalities, this webinar provides a solid introduction to database proxies (for MySQL).
Why does the DIY approach fail to deliver vs. the Tungsten Clustering solution for geo-distributed MySQL multimaster deployments? Before we dive into the 10 reasons, note why commercially-supported enterprise software is less risky and in fact less costly.
The power of Tungsten Clustering for MySQL / MariaDB is its built-in intelligent MySQL proxy, known as the Tungsten Connector. The Connector has built-in read-write splitting capabilities, and it is also possible to configure different algorithms which select the appropriate slave (i.e. Round-Robin or Lowest-Latency).
Database Proxies provide a single entry point into MySQL for the calling client applications. Proxies are wonderful tools to handle various situations like a master role switch to another node for maintenance, or for transparency with read and write connections. However, when the time comes to perform the switch action, all of the calling clients have been funneled through the proxy, so identification of the calling host from the database itself becomes difficult.