What makes Erlang scalable?

What makes Erlang scalable?

You have no variables, only terms, tuples and atoms. Program execution can be divided by breakpoint at any place. Fully transactional model. Processes are even lightweight than .

What makes Erlang unique?

Process-oriented The main thing that distinguishes Erlang from other languages is its process-based computing model. It uses isolated, lightweight processes that communicate with each other through messages. The processes are isolated, fast to create, and take up only a small amount of memory.

What is Erlang language used for?

Erlang is a programming language used to build massively scalable soft real-time systems with requirements on high availability. Some of its uses are in telecoms, banking, e-commerce, computer telephony and instant messaging.

Why is Erlang on my computer?

The reason why it is used in these applications comes from the core strength of Erlang: managing application availability. Erlang was built from ground up for the telco environment requiring that systems meet at least 5×9’s availability (99.999\% yearly up-time).

Is Erlang compiled or interpreted?

Entire Erlang archive can be written in script. Almost all features are available. By default, the script will be interpreted. You can force it to be compiled by including the -mode(compile).

Why is Erlang reliable?

So here’s a recap of what the Erlang VM gives us in pursuit of reliability: Lightweight, shared-nothing processes that communicate via asynchronous messages. A built-in mechanism for processes to react to failures in other processes.

What is Erlang software?

Erlang (/ˈɜːrlæŋ/ UR-lang) is a general-purpose, concurrent, functional programming language, and a garbage-collected runtime system. The Erlang runtime system is designed for systems with these traits: Distributed. Fault-tolerant. Soft real-time.

Why is Erlang so reliable?

Is Erlang interpreted or compiled?

Does Erlang compile?

Normally Erlang code is compiled ahead of time into BEAM bytecode. Depending on whether Erlang was started in embedded or interactive mode, the modules are either loaded on startup, or dynamically as they are referenced. If you are building a release, you basically have to compile ahead of time.

What is it like to learn Erlang?

The language is slow, awkward, and ugly. Refactoring Erlang code is a pain. Yet for almost five years, I have spent a large chunk of my free time programming in Erlang; at this point I’ve spent well over a thousand hours with the language.

Why is Erlang used in telco applications?

The reason why it is used in these applications comes from the core strength of Erlang: managing application availability. Erlang was built from ground up for the telco environment requiring that systems meet at least 5×9’s availability (99.999\% yearly up-time).

Which companies use Erlang in production systems?

Many companies are using Erlang in their production systems: • Amazon uses Erlang to implement SimpleDB, providing database services as a part of the Amazon Elastic Compute Cloud (EC2). • Yahoo! uses it in its social bookmarking service, Delicious, which has more than 5 million users and 150 million bookmarked URLs.

Why do companies use Erlang/OTP?

They use Erlang/OTP to manage the real-time bidding platform on the Amazon EC2 platform, pairing up advertisers with users in milliseconds. Many countries rely on Erlang for their immediate payment switches, allowing instant bank transfers and bill payment services.