10. Distributed Applications
10 Distributed Applications
10.1 Introduction
In a distributed system with several Erlang nodes, it can be necessary to control applications in a distributed manner. If the node, where a certain application is running, goes down, the application is to be restarted at another node.
Such an application is called a distributed application. Notice that it is the control of the application that is distributed. All applications can be distributed in the sense that they, for example, use services on other nodes.
Since a distributed application can move between nodes, some addressing mechanism is required to ensure that it can be addressed by other applications, regardless on which node it currently executes. This issue is not addressed here, but the global or pg2 modules in Kernel can be used for this purpose.
10.2 Specifying Dist
