Horizontally Scaling Monolithic Applications with Intelligent Transaction Routing

A computer program product comprising a computer readable storage medium having a computer readable program stored therein, wherein the computer readable program, when executed on a computing device, causes the computing device to:

• receive a transaction from a source computing system, wherein the transaction comprises at least one identifier of a product or service associated with the transaction;
• perform a lookup operation in an in-memory database of transaction routing information, based on the at least one identifier, wherein the transaction routing information maps the at least one identifier to a backend application instance identifier of a backend application instance;
• route the transaction to the backend application instance based on the backend application instance identifier;
• process, utilizing the backend application instance, the transaction to generate transaction results;
• and
• return the transaction results to the source computing system.

An apparatus comprising:

• at least one processor;
• and
• at least one memory coupled to the at least one processor, wherein the at least one memory comprises instructions which, when executed by the at least one processor, cause the at least one processor to:
• receive a transaction from a source computing system, wherein the transaction comprises at least one identifier of a product or service associated with the transaction;
• perform a lookup operation in an in-memory database of transaction routing information, based on the at least one identifier, wherein the transaction routing information maps the at least one identifier to a backend application instance identifier of a backend application instance;
• route the transaction to the backend application instance based on the backend application instance identifier;
• process, utilizing the backend application instance, the transaction to generate transaction results;
• and
• return the transaction results to the source computing system.