Concurrency

Continuation-Passing Style And Concurrency

I find lots of blogs mention concurrent/non-blocking/asynchronous programming as a benefit of Continuation-Passing Style (CPS). I cannot figure out …

JavaScript

Which would be better for concurrent tasks on node.js? Fibers? Web-workers? or Threads?

I stumbled over node.js sometime ago and like it a lot. But soon I found out that it lacked badly the ability to perform CPU-intensive tasks. So, I …

JavaScript

Django: make a view run only once at a time (mutex/lock/semaphore)

Is there an easy way (ideally built-in or library) to allow at most 1 thread/process at time within a Django view? A kind of semaphore I guess. …

Python Programming

How to test concurrency performance of database in Java application?

I have a database running on SQL Server 2017. I am using JDBC in my Java application to insert rows into one of the tables, but need to get that …

Databases

Annual Entrepreneurial 'Pitch Night' Features Regional Leaders

Student teams from the School District of New Berlin's Advanced Innovation and Design program presented their culminating "pitch" June 6.<p>Student …

Innovation

New Computer Science Courses from America’s Most Innovative University

U.S News & World Report has named Arizona State University the most innovative school in America for three years in a row. Now on Coursera, their …

Coursera

Building distributed applications with Orleans

Orleans is a framework for building high-scale distributed applications, without the need to learn and apply complex concurrency or other scaling …

Software Development

Concurrent Iteration

The concept of iteration intuitively seems to be synchronous — when the iteration completes we will have our results ready.<p>There are many native …

JavaScript

What's your approach to fixing a "long-term" hairy bug?

You come across an issue that just ain't getting fixed in a short amount of time? What goes through your head, what do you begin to think about?<p>not …

Concurrency

Learning functional programming at Twitter’s #Hackweek #1

This week is for us <b>Twitter’s</b> <b>HackWeek</b>!<p>I just came from holidays yesterday and today, Hackweek has started for me, can’t wait to see how much I can …

Programming

Use cases for Scala's Actors in a SavingsBankAccount program

This is not an assignment of any kind. I am in the process of learning Scala and Scala concurrency preferably with Akka Actors. One of the ways I am …

Scala

Ratpack's Promise.cache with multiple downstream promises in ParallelBatch

I'm running into a NullPointerException in the guts of Ratpack when using Ratpack's Promise.cache in combination with multiple downstream promises …

JavaScript

Ballerina: An API-First Programming Language

Open source enterprise application integration software provider WSO2 has launched a programming language built around supporting application …

Programming

Adopting Elixir: the book and beyond!

Adopting Elixir is a new book from PragProg, written by Ben Marx, José Valim and Bruce Tate, with the goal of exploring the Elixir adoption …

Software Development

How to implement a concurrent processing in akka?

I have a method in which there are multiple calls to db. As I have not implemented any concurrent processing, a 2nd db call has to wait until the 1st …

Software Development

How do I make Rails.cache (in-memory cache) work with Puma?

I'm using Rails 5.1. I have application-wide memory_store caching happening with Rails. This is set up in my config/environments/development.rb …

Linux

Becoming a dramatically better programmer - Henry @ RC S1

In our first week, we were told that the RC faculty wanted to do one thing above else – to remove any obstacles in the way of us becoming <i>dramatically</i> …

Self-improvement

C++11 threads to update MFC application windows. SendMessage(), PostMessage() required?

After spending a bit of time with simple UWP applications with C++/CX and ++/WinRT I have begun to enjoy some of the features of targeting that …

Windows 10

Django conditional create

Does the Django ORM provide a way to conditionally create an object?For example, let's say you want to use some sort of optimistic concurrency …

Python Programming

Javascript E2E / UI Testing

Javascript E2E / UI Testing (or how to break up with Selenium and move on)Web browser automation toolsYou know that something is wrong when your …

JavaScript

Resource Class - Concurrency - Azure SQL Data Warehouse

I have a question on how exactly resource class and concurrency work in ADW. I have configured a user account as staticrc30 (4 concurrency slots) and …

Databases

FileMaker 17 – products and licensing – uLearnIT – FileMaker Development, Mentoring and Training Classes

With the release of the FileMaker 17 Platform, FileMaker Inc., has taken the opportunity to simplify the licensing model and the products on …

Databases

Spoof Battle Royale Game Launches with High Player Numbers

Whether this news is indicative of the battle royale genre’s popularity, the unapologetically lackadaisical level of quality control of the Steam …

MMOGs

Climate change-related disaster relief is increasing demand on Defence Department, Senate hears

The Department of Defence has spelled out clearly to a Senate enquiry that climate change is increasing demand and will create "concurrency …

Climate Change

Shared State in Functional Programming

Newcomers to functional programming (FP) are often very confused about the proper way to share state without breaking purity and end up having a mix …

Programming

Luna

Luna is a simple, modern, opinionated unit testing framework for testing JavaScript in a browser or with Node.js.<p>Unlike other testing frameworks, …

JavaScript

ITPA ‘appalled’ by Bill Morrow’s comments on gamers

Information Technology Professionals Association (ITPA) said on Monday that it is “appalled” at attempts by NBN’s outgoing CEO Bill Morrow to lay the …

Telecoms

concurrency issue encountered in Asp.Net MVC3

Two users on the same page from different machines and when they click submit together the both see each others page instead to seeing their own …

ASP.NET

Django web application deployed on Heroku using Gunicorn - Half of the requests fail randomly (error code 500)

I deployed a Django web application on Heroku using gunicorn wsgi server. Everything works fine in local.That's my procfile web: gunicorn …

Heroku

Pentagon Agrees to Fix the F-35's Many Problems Before Full Production

The high-tech fighter has 966 “open deficiencies"—otherwise known as defects.<p>The Pentagon has agreed to fix a litany of problems with the F-35 before moving to full production of the controversial jet.<p>The F-35 Joint Strike Fighter, nicknamed “Panther” by pilots, is on the verge of going into full …

Aviation