Durable Execution

Durable Execution is a development paradigm that makes code crash-proof by automatically persisting execution state and progress.

Standard code lives in volatile RAM: if a process restarts or a network timeout occurs, you lose everything in memory and must start from scratch. Durable Execution changes the math by treating the entire execution history as a persistent record. Platforms like Temporal or Restate use event sourcing to track every local variable and completed step (activities). If a worker fails, the system simply rehydrates the state on a new machine and resumes exactly where it left off. This eliminates the need for manual retry loops, complex state machines, or custom database plumbing for error handling. It is the preferred architecture for high-stakes distributed systems: think processing multi-stage bank transfers, managing long-running AI agent workflows, or orchestrating thousands of microservice calls without losing a single bit of progress.

https://temporal.io/durable-execution