Question 1

How do I keep my ETS tables alive with Immortal?

Accepted Answer

Use Immortal.ETSTableManager to wrap your ETS table creation; it registers the table with a supervisor, ensuring persistence during process crashes. This prevents data loss and simplifies supervision tree management in OTP applications.

Question 2

When should I use Immortal.Ghost instead of a regular supervisor?

Accepted Answer

Immortal.Ghost is ideal for processes that need to perform cleanup or handle events after a target process dies, like logging or notifications. Supervisors restart processes, but Ghost keeps a process alive temporarily for post-mortem tasks without restarting.

Question 3

Is Immortal better than writing custom OTP code for fault tolerance?

Accepted Answer

Immortal provides pre-built, tested solutions for common scenarios, saving development time and reducing bugs. However, for unique or complex requirements, custom code might be necessary due to its limited scope.

Question 4

What's the performance impact of using Immortal.Ghost?

Accepted Answer

Ghost processes add minimal overhead by keeping processes alive for a set period after death. In most applications, this is negligible, but in high-throughput systems, profile it to ensure it doesn't affect latency or resource usage.

Question 5

How does Immortal compare to other Elixir fault-tolerance libraries like Horde or Swarm?

Accepted Answer

Immortal is more focused on local process and ETS management, while Horde and Swarm offer distributed process coordination and clustering. Use Immortal for resilience within a node; for distributed systems, consider broader frameworks with more features.

Question 6

Can Immortal be used in production Elixir applications?

Accepted Answer

Yes, Immortal is stable and used in production, as indicated by its Hex package and build status. However, test it thoroughly in your environment, as its niche focus means it may not cover all edge cases in complex deployments.

immortal

What is immortal?

Overview

Use Cases

Best For

Related Projects

Found a gem we're missing?

Not Ideal For

Pros & Cons

Pros

Cons

Frequently Asked Questions