Editing
Fault-tolerance in Elixir with OTP
Jump to navigation
Jump to search
Warning:
You are not logged in. Your IP address will be publicly visible if you make any edits. If you
log in
or
create an account
, your edits will be attributed to your username, along with other benefits.
Anti-spam check. Do
not
fill this in!
== Fault-tolerance in Elixir with OTP == [[File:Elixir-logo.png|thumb|right|Elixir programming language logo]] '''Fault-tolerance''' is a critical aspect of building reliable and robust systems. In Elixir, we are fortunate to have the '''OTP (Open Telecom Platform)''' framework to provide powerful tools and abstractions for managing fault-tolerance. == Supervisors == Supervisors, a key component of OTP, are responsible for restarting and managing the lifecycle of processes in a fault-tolerant manner. They monitor child processes and take appropriate actions when failures occur. === Supervision Trees === Supervision trees are hierarchical structures that describe the relationships between supervisors and their child processes. This tree-like structure allows for fine-grained control over fault-tolerance at different levels of the application. == Isolation == Elixir provides '''process isolation''' by encapsulating state within lightweight isolated processes. This isolation prevents failures in one process from impacting the entire system, ensuring fault-tolerance. == Supervision Strategies == OTP introduces different supervision strategies to handle failures: === One for One === In the "one for one" strategy, each failing child process is restarted individually, while other processes in the supervision tree remain unaffected. === One for All === The "one for all" strategy restarts all child processes in the supervision tree whenever a failure occurs. This approach is useful when the failure of one process affects the stability of others. === Rest for One === The "rest for one" strategy is similar to the "one for one" strategy, except that the processes are restarted in a cascading manner from the top of the supervision tree down. === Simple One for One === The "simple one for one" strategy allows for dynamic addition and removal of child processes. This is useful when processes are created and terminated during runtime. == OTP Behaviours == OTP introduces '''behaviours''' that define generic interfaces and behaviors for building fault-tolerant systems. These behaviours provide predefined callbacks to handle common tasks consistently across different processes. == GenServer == '''GenServer''' (Generic Server) is a fundamental behavior provided by OTP. It allows us to build stateful processes with synchronous and asynchronous message handling capabilities. == GenEvent == '''GenEvent''' (Generic Event) is another OTP behavior that facilitates event-driven communication between processes. It provides an event-based API for subscribing to and publishing events, enabling loose coupling and fault-tolerance. == Conclusion == Elixir, with its comprehensive suite of tools and abstractions provided by OTP, offers a solid foundation for building fault-tolerant systems. Supervisors, isolation, supervision strategies, OTP behaviours, and the GenServer and GenEvent behaviors are some of the key components that contribute to the fault-tolerance capabilities of Elixir. With a strong emphasis on fault-tolerance, Elixir empowers developers to build resilient and reliable applications, enabling them to handle failures gracefully and deliver a better user experience. '''See also:''' * [[Concurrency in Elixir|Concurrency in Elixir]] * [[Actor model in Elixir|Actor model in Elixir]] * [[Elixir processes|Elixir processes]] * [[OTP Design Principles|OTP Design Principles]] * [[Erlang (programming language)|Erlang (programming language)]] [[Category:Elixir]] [[Category:Fault-tolerance]] [[Category:OTP]] [[Category:Programming Languages]]
Summary:
Please note that all contributions to Elixir Wiki may be edited, altered, or removed by other contributors. If you do not want your writing to be edited mercilessly, then do not submit it here.
You are also promising us that you wrote this yourself, or copied it from a public domain or similar free resource (see
Elixir Wiki:Copyrights
for details).
Do not submit copyrighted work without permission!
Cancel
Editing help
(opens in new window)
Navigation menu
Personal tools
Not logged in
Talk
Contributions
Create account
Log in
Namespaces
Page
Discussion
English
Views
Read
Edit
View history
More
Navigation
Main page
Recent changes
Random page
Help about MediaWiki
Tools
What links here
Related changes
Special pages
Page information