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Lambda Architecture » λ lambda-architecture.net
What is the Lambda Architecture?

Nathan Marz came up with the term Lambda Architecture (LA) for a generic, scalable and fault-tolerant data processing architecture, based on his experience working on distributed data processing systems at Backtype and Twitter.

The LA aims to satisfy the needs for a robust system that is fault-tolerant, both against hardware failures and human mistakes, being able to serve a wide range of workloads and use cases, and in which low-latency reads and updates are required. The resulting system should be linearly scalable, and it should scale out rather than up.
architecture  bigdata  lambda  distributed  scalability  lambda-architecture  big-data  data  hadoop  programming 
july 2019 by vrobin
aappleby/smhasher: Automatically exported from code.google.com/p/smhasher
Automatically exported from code.google.com/p/smhasher - aappleby/smhasher
hash  hashing  algorithms  c  Programming 
june 2019 by vrobin
Which hashing algorithm is best for uniqueness and speed? - Software Engineering Stack Exchange
I tested some different algorithms, measuring speed and number of collisions.

I used three different key sets:

A list of 216,553 English words (in lowercase)
The numbers "1" to "216553" (think ZIP codes, and how a poor hash took down msn.com)
216,553 "random" (i.e. type 4 uuid) GUIDs

For each corpus, the number of collisions and the average time spent hashing was recorded.

I tested:

DJB2a (variant using xor rather than )
FNV-1 (32-bit)
FNV-1a (32-bit)
Murmur2 (32-bit)
hash  cryptography  algorithms  programming  hashing  bestpractices  performance  murmur  md5  sha1 
june 2019 by vrobin
isocpp/CppCoreGuidelines: The C Core Guidelines are a set of tried-and-true guidelines, rules, and best practices about coding in C
The C Core Guidelines are a set of tried-and-true guidelines, rules, and best practices about coding in C - isocpp/CppCoreGuidelines
c  programming  guide  github  11  guidelines  reference  cpp  best-practices  14  standards 
may 2019 by vrobin
CppCoreGuidelines/CppCoreGuidelines.md at master · isocpp/CppCoreGuidelines
The C Core Guidelines are a set of tried-and-true guidelines, rules, and best practices about coding in C - isocpp/CppCoreGuidelines
c  programming  cpp  guide  11  best-practices  14  reference  dev 
may 2019 by vrobin
C Core Guidelines
The C Core Guidelines are a set of tried-and-true guidelines, rules, and best practices about coding in C
coding  guide  c  guidelines  programming  bjarneStroustrup  codeconvention  codingStandards  development  standards  bestpractices 
may 2019 by vrobin
lefticus/cppbestpractices: Collaborative Collection of C Best Practices
Collaborative Collection of C Best Practices. Contribute to lefticus/cppbestpractices development by creating an account on GitHub.
c  tutorial  Programming  bestpractices  reference  book  codingstyle  best-practices  developement 
may 2019 by vrobin
ClangFormat — Clang 9 documentation

ClangFormat describes a set of tools that are built on top of LibFormat. It can support your workflow in a variety of ways including a standalone tool and editor integrations.
Standalone Tool

clang-format is located in clang/tools/clang-format and can be used to format C/C /Java/JavaScript/Objective-C/Protobuf/C# code.
editor  parsing  programming  c  formating  tool 
april 2019 by vrobin
Java 8 - Comparison with Lambdas | Baeldung
1. Overview

In this tutorial, we’re going to take a first look at the Lambda support in Java 8 – specifically at how to leverage it to write the Comparator and sort a Collection.

This article is part of the “Java – Back to Basic” series here on Baeldung.
java8  java  streams  development  Programming  comparator  lambda 
april 2019 by vrobin
Guide to Java 8 Comparator.comparing() | Baeldung
A practical guide to the static functions and instance methods of the Comparable interface that were introduced in Java 8.
java8  java  development  programming  comparator  streams 
april 2019 by vrobin
Java streams best practices
Java streams best practices

In this short post I am going to present Java 8 streams best practices. Most of them either I figured out myself or learned from my colleagues.
computers  java  programming  streams  bestpractices  development 
april 2019 by vrobin
Software and technology stacks used by top companies | StackShare
All the best Open Source, Software as a Service (SaaS), and Developer Tools in one place, ranked by developers and companies using them. Compare and browse tech stacks from thousands of companies and software developers from around the world.
tools  software  stack  framework  development  alternative  programming  technology  dev  web 
march 2019 by vrobin
CheatSheetSeries/Password_Storage_Cheat_Sheet.md at master · OWASP/CheatSheetSeries
The OWASP Cheat Sheet Series was created to provide a concise collection of high value information on specific application security topics. - OWASP/CheatSheetSeries
security  password  programming  architecture  best-practices  cheatsheet  design  development  webapp  owasp  bcrypt  hash 
march 2019 by vrobin
Visual Studio Code Can Do That? — Smashing Magazine
Why is Visual Studio Code (VS Code) so popular, and do we really need another text editor? In this article, we'll take a look at how VS Code extends traditional text editor concepts and opens up entirely new avenues of productivity for developers. These are all the best things about VS Code that nobody ever bothered to tell you.
editor  vscode  programming  css 
march 2019 by vrobin
ryanmcdermott/clean-code-javascript: Clean Code concepts adapted for JavaScript
:bathtub: Clean Code concepts adapted for JavaScript - ryanmcdermott/clean-code-javascript
javascript  code  js  guide  programming  reference  clean  style  github  clean-code 
february 2019 by vrobin
Libraries.io - The Open Source Discovery Service
Discover open source packages, modules and frameworks you can use in your code.
opensource  libraries  programming  software  search  development  npm  tools  reliability  confidence  grade  notes 
july 2018 by vrobin
About style guide of python and linter tool. pep8, pyflakes, flake8, haking, Pylint.
Hello, I have summarized Style guide of python and programming device for coding rules in this entry. I described 5 different tools which are pep8, pyflakes, flake8, haking, Pylint. Since this entry…
python  programming  style  documentation  guide  dev  codingstyle  learning 
june 2018 by vrobin
Test-Driven Development for Embedded C by James W. Grenning | The Pragmatic Bookshelf
Test-Driven Development for Embedded C
by James W. Grenning

Still chasing bugs and watching your code deteriorate? Think TDD is only for desktop or web apps? It’s not: TDD is for you, the embedded C programmer. TDD helps you prevent defects and build software with a long useful life. This is the first book to teach the hows and whys of TDD for C programmers.
test-driven  test  driven  development  c  tdd  agile  embedded  testing  debugging  first  design  qa  programming 
june 2018 by vrobin
Non Blocking I/O for Everyone with RxJava
Intro to RxJava in a non blocking I/O context. My slides tend to make little sense without the talk ;-)
rxjava  async  programming  java  reactivex  reactive 
april 2018 by vrobin
Reactive Java (RxJava) Tutorial: Advanced | Examples Java Code Geeks - 2018
Reactive Java (RxJava) Tutorial: Advanced

Reactive Java or RxJava is an implementation and enhancement of the observer pattern. It was intended for use in event driven schemes where nesting synchronous or asynchronous callback methods becomes overly complex. It abstracts some of the more complex tasks associated with asynchronous operations including threading and concurrency.
java  programming  async  reactive  rxjava 
april 2018 by vrobin
Home · ReactiveX/RxJava Wiki
GitHub is where people build software. More than 27 million people use GitHub to discover, fork, and contribute to over 80 million projects.
rxjava  reactive  java  async  programming  android  concurrency  opensource  promise 
april 2018 by vrobin
jdeferred/jdeferred: Java Deferred/Promise library similar to JQuery.
JDeferred 2.x

JDeferred is a Java Deferred/Promise library similar to JQuery's Deferred Object.

Inspired by JQuery and Android Deferred Object.

If you are using JDeferred 1.x, see JDeferred 1.x Documentation
java  programming  android  concurrency  jdeferred  opensource  async  promise 
april 2018 by vrobin
The SAT problem is the classical NP complete problem of searching for a satisfying assignment of a propositional formula in conjunctive normal form (CNF). General information on SAT can be found at www.satlive.org or www.satlib.org. Our invited talk A Short History on SAT Solver Technology and What is Next? describes some of the new features of PicoSAT. The experimental data used in this talk is available as Biere-SAT07-talk-
math  puzzle  sudoku  sat  constraint  programming  game  solver  logic  satisfiability 
april 2018 by vrobin
Sudoku solving the easy way using boolean satisfiability » Luke's Blog
One of my recent interests has been in solving problems with various kinds of satisfiability solvers. As an introduction to this idea I want to demonstrate how to create a sudoku solver with almost no effort by reduction to a common satisfiability problem (CNF-SAT) and using an existing solver (MiniSat).
math  puzzle  sudoku  sat  constraint  programming  game  solver  logic 
april 2018 by vrobin
Nerd Fonts - Iconic font aggregator, collection, and patcher
Iconic font aggregator, collection, and patcher: 34 patched fonts: Hack, Source Code Pro, . Popular glyph collections: Font Awesome, Octicons, .
font  fonts  programming  icons  tools  fontscollection  patched-fonts  powerline  shell  statusline  python  iconic-fonts  patcher  fontforge  font-awesome  octicons  font-linux  sourcecodepro  hack  droid  sans  meslo  anonymouspro  profont  inconsolata 
march 2018 by vrobin
Arduino Timer Interrupts: 6 Steps (with Pictures)
Timer interrupts allow you to perform a task at very specifically timed intervals regardless of what else is going on in your code. In this instructable I'll...
arduino  timer  interrupts  programming  diy 
december 2017 by vrobin
Python Top 10 Articles for the Past Month (v.Nov 2017)
For the past month, we ranked nearly 1,000 Python articles to pick the Top 10 stories that can help advance your career (1% chance).
python  articles  Programming 
december 2017 by vrobin
Line Simplification
An interesting challenge in cartography is getting data of the appropriate resolution. As Lewis Fry Richardson observed, the more precisely you measure the length of a coastline, the longer it appe
algorithm  programming  sig  spatial  tracé  kml  itinéraire 
november 2017 by vrobin
Download and solve practice problems in over 30 different languages.

Submit the solution to the site for feedback (beta).

For code newbies and experienced programmers.
education  learning  code  programming  coding  practice  development  tools  learn  online  interactive  exercises  kata 
august 2017 by vrobin
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