CoRecursive: Coding Stories Tech Talk: Erlang And Distributed Systems with Steven Proctor
May 2, 2018
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Function vs Process Boundaries
- Erlang processes run functions and handle messages via mailboxes, isolating state and concurrency.
- Deciding what runs as a function vs. a process depends on concurrency and failure domain boundaries.
Define Concurrency for Process Design
- Identify concurrent operations and failure domains to determine process boundaries.
- Keep related state and lifecycle within a single process to isolate failures effectively.
Single-Threaded Processes Simplify Concurrency
- Each Erlang process is single-threaded, so it serializes access to its state and avoids concurrent modification issues.
- Concurrency arises by having many isolated processes running in parallel, not by sharing mutable state.