Erlang/OTP

Erlang's lightweight processes with isolated memory and message-passing enable handling millions of concurrent connections, as highlighted in its concurrency model for scalable systems like telecom infrastructure.

Supervision trees and the 'let it crash' philosophy allow systems to self-heal from component failures, ensuring high availability without manual intervention, a core feature for resilient applications.

Hot code swapping lets you update running systems without downtime, critical for maintaining 99.999% uptime in production, as noted in the key features for seamless service continuity.

OTP provides tools for easy node communication and clustered applications, making it straightforward to build distributed systems, as evidenced by its distributed computing capabilities.