Cloud computing infrastructure

A cloud computing infrastructure comprising:

• a plurality of nodes in communication with one another over a network;
• at least one load balancer configured to allocate incoming requests to the nodes;
• a multi-master database system comprising a plurality of master databases, one at each of the plurality of nodes, the multi-master database system redundantly storing data and redundantly storing atomic code units defining a dynamic web application provided by the cloud computing infrastructure to a plurality of end user computing devices;
• each node comprising:
• a web server comprising a network interface configured to connect the web server to the at least one load balancer and also configured to connect the web server to the other nodes;
• and
• physical storage, connected to the web server, the physical storage comprising one of the master databases;
• the web server having a processor configured to execute, in response to requests, individual ones of the atomic code units in dependence on state of the master database, to generate output data according to the dynamic web application.

A method performed using a first node of a cloud computing infrastructure supporting a dynamic web application, the method comprising:

• storing, at a master database of a multi-master database system of the cloud computing infrastructure, data and atomic code units, the atomic code units being part of a plurality of atomic code units redundantly distributed over a plurality of second nodes of the cloud computing infrastructure and which define the web application;
• receiving requests comprising input data and identifiers of individual ones of the atomic code units, at least some of the requests originating from client devices using the web application;
• and
• executing, in response to the requests, individual ones of the atomic code units in dependence on state of the master database, such that the web application is executed.