Elixir GenServer as a Single-Writer Gate for External Resources
Use a supervised Elixir GenServer to serialize writes to a mutable external resource, with timeouts, input validation, and operational checks.
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Choosing the Right GenServer Communication Pattern for Stateful Services
Learn how to choose between GenServer.call, cast, and handle_info to build responsive stateful services in Elixir without blocking your event loop.
elixirDiagnosing Intermittent GenServer.call Timeouts in Elixir
A diagnostic guide for intermittent GenServer.call timeouts in Elixir, covering caller timeouts, mailbox backlog, blocked callbacks, and escalation criteria.
Diagnosing GenServer.call Timeouts and Mailbox Backpressure in Elixir
A diagnostic guide for Elixir GenServer synchronous timeouts, growing mailboxes, and cascading backpressure in supervised systems.
Managing Process State in Elixir with GenServer: Calls vs. Casts
Learn how to manage process state in Elixir using GenServer, including the critical technical differences between synchronous calls and asynchronous casts to avoid timeouts and mailbox overflows.
Managing Application State with Elixir GenServer: Call vs. Cast
Learn how to implement state management in Elixir using GenServer, including the critical technical distinctions between synchronous calls and asynchronous casts.
Managing Volatile State in Elixir: Beyond Simple GenServers
GenServer isolates state in a single process, but that state vanishes on crash. Learn the API-callback split, a working counter example, and how to monitor mailbox bottlenecks before they stall your system.
Designing Fault-Tolerant Stateful Services with Elixir GenServers
Explains how to use Elixir GenServers for safe state management, covering requirements, minimal design, process boundaries, supervision, monitoring, and when to adjust the architecture.
Building Fault-Tolerant State with Gleam and OTP GenServers
Learn how to implement fault-tolerant state management in Gleam using GenServers and Supervisors via the gleam_otp library to build resilient BEAM applications.
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