Release Upgrades in Erlang

Luis Rascao from Miniclip talks about the usage of Release Upgrades in Erlang
22 August 2017   719

Release Upgrades (AKA relups) are still a topic shrouded in mistery to a lot of Erlang coders. One of the superior features of the Erlang VM is the ability of hot-code loading which is invaluable when you run code in production and need to apply fixes without downtime. Many will simply overwrite the .beam files in disk and then load them by hand, this is an error prone process that doesn't scale well in large clusters, another option is load balancer draining which is also annoying.

A rebar3 plugin will be presented which aims at easing the developer burden of generating and working with release upgrades. Relups give us a structured way of applying code changes to a running release.

Aeternity and Erlang unite forces to address blockchain scalability

The partnership will strive to effectively serve billions of potential users
29 January 2018   270

Last week distributed computing platform aeternity partnered with fault-tolerant systems developer Erlang Solutions. Aeternity is going to scale its distributed network with fault-tolerant systems with the assistance of Erlang. It will allow to serve billions of users to further drive the adoption of blockchain technology. In addition to scalability, the partnership aims to address consensus-related mechanisms.

To achieve the scalability, aeternity brings in the concept of “state channels”: because only the people affected by the transaction need to know about it, then the parties instantiate some state on a blockchain and send signed updates to this state between each other. Thus, transactions are conducted as fast as information can travel, and channels stay independent from each other which in turn allow parallel transactions.

Regarding the consensus mechanism, it is a hybrid of Proof-of-Work and Proof-of-Stake: Proof-of-Work determines block-order, while the hybrid algorithm will determine the answers of oracle questions and system variables.

As for Erlang, the blockchain itself, the contract language, the virtual machine, the oracle and governance mechanisms are written in Erlang. The specifics of the language is that it allows to write code that can respond to many requests and doesn’t crash. On top of that, the servers with the highest uptime in the world are based on Erlang.

The launch of main network is scheduled for Q2 of 2018.

The users on Reddit reacted positively on the news about the partnership some gave predictions:

@murt «Aeternity has been one of the best kept secrets in crypto but looks like it's starting to break out now. Will be $1B market cap in no time».

@davidsho1 «That's huge partnership. Erlang solutions processes for billions of users. Possibly biggest news in blockchain period. Too bad noone knows aeternity. Only a matter of time before word gets out. 100$ aeternity on mainnet very likely. This project has enormous potential».

@izroda «AE bull run, important new partnership, what more can you want from a Saturday».