What are errors and error tolerance in distributed systems?

The article "Understanding Faults and Fault Tolerance" delves into the topic of errors in computer systems and how to tolerate them. The authors emphasize that errors are inevitable and can occur in various forms, such as hardware, software, or network faults. It is crucial to design systems with fault tolerance in mind, meaning they should be capable of operating even in the face of failures. Different fault tolerance techniques are discussed, including redundancy, monitoring, and state recovery after a failure occurs. The primary goal is to ensure the continuity of system operations while minimizing the impact of errors on end users. The authors encourage understanding and implementing these strategies in IT projects to increase their reliability and stability.