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Recent questions tagged erlang

2 votes
1 answer
Is it possible to describe the data model only in the database?
Is it possible to describe the data model only in the database? Greetings! At one of the online seminars, I heard a developer (in erlang) say that the data model in functional languages only needs to be described in the database, wit ...
by max_shane
asked Sep 21, 2021
3 votes
1 answer
How is the business logic and data model described in functional languages?
How is the business logic and data model described in functional languages? Greetings! I did a little googling, but I could not get a clear understanding of how business logic and data model are described in functional languages like Haskell and ...
by max_shane
asked Mar 26, 2021
1 vote
1 answer
Why not get the data to RabbitMQ?
Why not get the data to RabbitMQ?The query command status rabbitMQ sudo rabbitmqctl -q status -n rabbit@demoI get this response: Error: unable to connect to node rabbit@mongeo: nodedownDIAGNOSTICS======= ...
by BATAZOR
asked Jul 31, 2020
1 vote
1 answer
How to configure Tsung for the task?
How to configure Tsung for the task?How should look like configuration Tsung (or any other load testing tools for performance more than 40,000 rps), if: 1) a List of URLs is fetched from the file 2) the Res ...
by Twindo
asked Jul 9, 2020
1 vote
2 answers
How to start cowboy server?
How to start cowboy server?Hello! Trying to run echo server example https://github.com/robertmeta/cowboy-examples/tree...My rebar.config {deps, {cowboy, ".", {git," https://github.com/ninenines/ ...
by Radist_101
asked Jul 3, 2020
1 vote
1 answer
Why not Erlang rebar dependencies loaded?
Why not Erlang rebar dependencies loaded?The content of rebar.config: {deps, {cowboy, ".", {git, "https://github.com/ninenines/cowboy.git", {branch, "master"}}}, {sync, ".", {git, "git://github.com/rustyio/s ...
by Radist_101
asked Jun 27, 2020
1 vote
3 answers
What is a list in functional programming languages?
What is a list in functional programming languages?Than a list in functional programming languages different from the usual list? :) As it is stored in memory? ...
by frosty7777777
asked Jun 23, 2020
2 votes
6 answers
What's missing from the service?
What's missing from the service?Good time of day. Developing a service of transferring messages in real time, leading blog on habré. But, to put it mildly, the service is not popular. I would like to k ...
by Slavenin999
asked May 14, 2020
2 votes
8 answers
What to do many concurrent requests?
What to do many concurrent requests?Need to do a lot of concurrent requests. Now the whole implementation is kept in php multicurl, but unfortunately with the move to ssl, I had to reduce the number of quer ...
by Graid
asked May 11, 2020
4 votes
3 answers
What database to use Erlang for high-load servers?
What database to use Erlang for high-load servers?Good time! Learning Erlang, I want to start writing already more or less serious project and there was a question about which database to use for heavily loaded servers. ...
by leverun
asked May 7, 2020
1 vote
1 answer
What tasks would you recommend for learning Erlang'a?
What tasks would you recommend for learning Erlang'a?Learning erlang, tired of reading the book, I want something small to do on erlang'e, I can recommend a few not complex tasks? ...
by Radist_101
asked May 7, 2020
5 votes
2 answers
Choice architecrure for websockeт's. eventloop or the actors?
Choice architecrure for websockeт's. eventloop or the actors?in some cases, preferable to a decision ? also interested in experience of implementing existing projects by means of RabbitMQ, etc. ...
by amerov
asked May 7, 2020
1 vote
1 answer
Erlang. How to organize data?
Erlang. How to organize data?Good day, %habrauser%! Tell me how in erlang to correctly organize the storage of m2m data? A simple example. There are two entities "posts" and "tags". In classic sql st ...
by Slavenin999
asked May 7, 2020
3 votes
3 answers
Who as diploid Erlang application?
Who as diploid Erlang application?I think that in Erlang there is no such thing as Capistrano. You can set up a few scripts and make make deploy. And here is the process I want to automate, for their smal ...
by artemeff
asked May 6, 2020
1 vote
1 answer
How to add an arbitrary process in gproc?
How to add an arbitrary process in gproc?Kind time of days, Habr! Is it even possible to add arbitrary gproc process? The essence of the following. I have two supervisors, the first launches the second, but only ...
by Slavenin999
asked May 5, 2020
1 vote
2 answers
Erlang. Why error occurs when you install a release using rebar?
Erlang. Why error occurs when you install a release using rebar?Good day, %habrauser%! Understand the Assembly and ustanovkoy releases using rebar. Faced a problem - on cristovam computer start command of the harvested release cd rel/ ...
by Slavenin999
asked May 5, 2020
1 vote
7 answers
Which language/technology to start learning on a Christmas "vacation"?
Which language/technology to start learning on a Christmas "vacation"?I'm working an android developer, I would like to learn something interesting on these holidays. Originally had my eye on Scala or Erlang, but now hesitated. Interested i ...
by tagantroy
asked May 5, 2020
2 votes
6 answers
Where to start learning Erlang?
Where to start learning Erlang?Decided to learn Erlang, liked the description N20, which "proposes to build event-driven web applications to intelligently interact with the user without overloading the ...
by Jeket
asked May 3, 2020
2 votes
2 answers
How to encode/decode text in Erlang?
How to encode/decode text in Erlang?Good day, %Habrauser%! Need to encode/decode plain text using AES-256 encryption. The simplest code: crypto:start(),Key = <<"aj2lbj2k4kljaj3k2l4k3l4kk2l3jj32">&g ...
by Slavenin999
asked May 3, 2020
2 votes
1 answer
Erlang. How to write a tcp server in accordance with the principles of the otp?
Erlang. How to write a tcp server in accordance with the principles of the otp?Good day, %Habrauser%! The Internet is full of articles that describe the process of creating a socket server in erlang for example and all is good, but the use of undocu ...
by Slavenin999
asked May 3, 2020
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