This talk presents two systems developed in Erlang at Morgan Stanley.

One of them is a general resource management platform. It is a distributed system prepeared for managing a large number of different resources, like web applications, Unix processes or virtual machines. The system manages 70 000 different resources and has to be stable and highly available. The talk presents how we used Erlang to build this system and the major challenges we had to deal with.

The other one is a load balancer for kdb+ server farms. It works in the application layer. Understands all the kdb+ transport protocols (http, websocket and native kdb+ IPC) and routes request individually. This software must be scalable, fault-tolerant and has soft real-time requirements. The talk describes the design of the system, showing some advantages and disadvantages of choosing Erlang.