Brokerage houses, investment banks, wealth management firms, exchanges and clearing houses operate their systems in complex distributed computing environments. Many of them are considering or in the process of migrating applications and data to the cloud to take advantage of its low cost and elasticity. Applications which use libraries for FIX protocol communications or application servers dedicated to FIX message routing and transformation (FIX servers) are a critical part of those systems. In the twenty years since FIX protocol was introduced, it has become a global standard for electronic trade communications. Companies operate hundreds of thousands of FIX sessions, processing millions of messages a day. Migration of FIX connectivity to a dynamic infrastructure requires rethinking the way the FIX layer is constructed, which we will describe in this white paper. 

We reflected on history of EPAM HA solutions for FIX layer, business and technical requirements, architecture considerations, and our approach in this white paper.

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Summary

We created a scalable New Generation Ecosystem (NGE) to host FIX layer which takes advantage of the elasticity of dynamic infrastructure. By leveraging shared storage for preserving session states, the non-stop management of FIX sessions is achieved. Client session recovery by switching to another node takes only seconds.

Multiple instances of each service could be run; thus, no single point of failure exists in the system. The NGE provides a set of APIs to collect information about the platform state and performance, set parameters and control services. Main FIX Layer use cases such as Order Entry Gateway, Smart Order Router/Message Router, Market Data and Trade Capture/Drop Copy Servers can now be implemented in NGE. 

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