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Remote Procedure Call

Definition of Remote Procedure Call

Remote Procedure Call (RPC) is a communication protocol that allows a computer program to execute code or procedures on a remote system as if they were local. In simpler terms, RPC enables a program to request a service from a server program located on another computer on a network, without having to understand the network's details. It abstracts the complexities of network communication, making it easier for developers to create distributed systems.

Origin of Remote Procedure Call

The concept of RPC dates back to the 1970s when computer networks were evolving. It gained significant traction with the development of the Open Network Computing (ONC) framework by Sun Microsystems in the 1980s. ONC introduced the idea of making procedure calls across a network as simple as local calls within a program. Since then, RPC has become a fundamental building block for distributed computing, playing a crucial role in various networked systems and applications.

Practical Application of Remote Procedure Call

One practical application of RPC is in client-server architecture, where clients request services from remote servers. For instance, in web development, when a user interacts with a web application, the client-side code may make RPC requests to the server to retrieve data or perform actions without refreshing the entire page. Similarly, in enterprise systems, RPC facilitates communication between different modules or services running on separate servers, enabling seamless interaction and integration.

Benefits of Remote Procedure Call

1. Simplified Development: RPC abstracts the complexities of network communication, allowing developers to focus on writing application logic rather than dealing with low-level networking protocols. This simplification accelerates development and reduces the likelihood of errors.

2. Interoperability: RPC enables communication between heterogeneous systems, regardless of the underlying hardware or software platforms. This interoperability fosters integration among diverse technologies, making it easier to build complex distributed systems.

3. Efficiency: By executing procedures remotely, RPC reduces the overhead associated with data transmission compared to traditional message passing mechanisms. This efficiency translates into faster response times and improved system performance, especially in latency-sensitive applications.

4. Scalability: RPC facilitates the distribution of workload across multiple servers, allowing systems to scale horizontally to handle increasing user demand. As the number of clients grows, additional servers can be added to the network, ensuring smooth operation without compromising performance.


Many programming languages support RPC, including Java, Python, C/C++, and .NET. There are also platform-independent RPC frameworks like gRPC and Apache Thrift that facilitate cross-language communication.

Security in RPC depends on the implementation and configuration. While RPC itself doesn't inherently provide security mechanisms, developers can implement encryption, authentication, and access control to secure RPC communications.

Yes, RPC can be used over the internet, but it requires appropriate network configurations and security measures to ensure reliability and protect against potential security threats.


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