Dario  Schaden

Dario Schaden

1653542100

Pyramid Web Framework Session Factory Backed By Redis

Overview

pyramid_redis_sessions is a server-side session library for the Pyramid Web Application Development Framework, using Redis for storage. This library implements the Pyramid ISession interface.

Why Use Redis for Your Sessions

Redis is fast, widely deployed, and stable. It works best when your data can fit in memory, but is configurable and still quite fast when you need to sync to disk. There are plenty of existing benchmarks, opinion pieces, and articles if you want to learn about its use cases. But for pyramid_redis_sessions, I'm interested in it specifically for these reasons:

  • it really is bleeping fast (choose your own expletive)
  • it has a very handy built-in mechanism for setting expirations on keys
  • the watch mechanism is a nice, lightweight alternative to full transactions
  • session data tends to be important but not mission critical, but if it is...
  • it has configurable persistence

Documentation

To get up and running as fast as possible, check out the Getting Started guide.

You can also read the full documentation on Read the Docs.

Support

You can report bugs or open feature/support requests in the GitHub issue tracker.

You can also get live help in #pyramid on irc.freenode.org. My nick is erasmas, but if I'm not available you can still typically get support from the many other knowledgeable regulars.

Author: ericrasmussen
Source Code: https://github.com/ericrasmussen/pyramid_redis_sessions
License: View license

#python #pyramid 

What is GEEK

Buddha Community

Pyramid Web Framework Session Factory Backed By Redis

Ajay Kapoor

1619172468

10 Top Web Development Frameworks for Assured Success of Your Project - PixelCrayons

Web development frameworks are a powerful answer for businesses to accomplish a unique web app as they play a vital role in providing tools and libraries for developers to use.

Most businesses strive to seek offbeat web applications that can perform better and enhance traffic to the site. Plus, it is imperative to have such apps as the competition is very high in the digital world.

Developers find it sophisticated to use the libraries and templates provided by frameworks to make interactive and user-friendly web applications. Moreover, frameworks assist them in increasing the efficiency, performance, and productivity of the web development task.

Before getting deep into it, let’s have a quick glance at the below facts and figures below that will help you comprehend the utility of the frameworks.

As per Statista, 35.9% of developers used React in 2020.
25.1% of developers used the Angular framework worldwide.
According to SimilarTech, 2,935 websites use the Spring framework, most popular among the News and Media domain.

What is a Framework?
A framework is a set of tools that paves the way for web developers to create rich and interactive web apps. It comprises libraries, templates, and specific software tools. Additionally, it enables them to develop a hassle-free application by not rewriting the same code to build the application.

There are two categories of frameworks: the back-end framework, known as the server-side, and the front-end framework, known as the client-side.

The backend framework refers to a web page portion that you can not see, and it communicates with the front end one. On the other hand, the front-end is a part of the web that users can see and experience.

You can understand by an example that what you see on the app is the front-end part, and the communication you make with it is the part of the back end.

Read the full blog here

Hence, depending on your web development application requirements, you can hire web developers from India’s best web development company. In no time, you will be amongst those who are reaping the results of using web development frameworks for the applications.

#web-development-frameworks #web-frameworks #top-web-frameworks #best-web-development-frameworks

Dario  Schaden

Dario Schaden

1653542100

Pyramid Web Framework Session Factory Backed By Redis

Overview

pyramid_redis_sessions is a server-side session library for the Pyramid Web Application Development Framework, using Redis for storage. This library implements the Pyramid ISession interface.

Why Use Redis for Your Sessions

Redis is fast, widely deployed, and stable. It works best when your data can fit in memory, but is configurable and still quite fast when you need to sync to disk. There are plenty of existing benchmarks, opinion pieces, and articles if you want to learn about its use cases. But for pyramid_redis_sessions, I'm interested in it specifically for these reasons:

  • it really is bleeping fast (choose your own expletive)
  • it has a very handy built-in mechanism for setting expirations on keys
  • the watch mechanism is a nice, lightweight alternative to full transactions
  • session data tends to be important but not mission critical, but if it is...
  • it has configurable persistence

Documentation

To get up and running as fast as possible, check out the Getting Started guide.

You can also read the full documentation on Read the Docs.

Support

You can report bugs or open feature/support requests in the GitHub issue tracker.

You can also get live help in #pyramid on irc.freenode.org. My nick is erasmas, but if I'm not available you can still typically get support from the many other knowledgeable regulars.

Author: ericrasmussen
Source Code: https://github.com/ericrasmussen/pyramid_redis_sessions
License: View license

#python #pyramid 

Loma  Baumbach

Loma Baumbach

1596679140

Redis Transactions & Long-Running Lua Scripts

Redis offers two mechanisms for handling transactions – MULTI/EXEC based transactions and Lua scripts evaluation. Redis Lua scripting is the recommended approach and is fairly popular in usage.

Our Redis™ customers who have Lua scripts deployed often report this error – “BUSY Redis is busy running a script. You can only call SCRIPT KILL or SHUTDOWN NOSAVE”. In this post, we will explain the Redis transactional property of scripts, what this error is about, and why we must be extra careful about it on Sentinel-managed systems that can failover.

Redis Lua Scripts Diagram - ScaleGrid Blog

Transactional Nature of Redis Lua Scripts

Redis “transactions” aren’t really transactions as understood conventionally – in case of errors, there is no rollback of writes made by the script.

Atomicity” of Redis scripts is guaranteed in the following manner:

  • Once a script begins executing, all other commands/scripts are blocked until the script completes. So, other clients either see the changes made by the script or they don’t. This is because they can only execute either before the script or after the script.
  • However, Redis doesn’t do rollbacks, so on an error within a script, any changes already made by the script will be retained and future commands/scripts will see those partial changes.
  • Since all other clients are blocked while the script executes, it is critical that the script is well-behaved and finishes in time.

The ‘lua-time-limit’ Value

It is highly recommended that the script complete within a time limit. Redis enforces this in a weak manner with the ‘lua-time-limit’ value. This is the maximum allowed time (in ms) that the script is allowed to run. The default value is 5 seconds. This is a really long time for CPU-bound activity (scripts have limited access and can’t run commands that access the disk).

However, the script is not killed when it executes beyond this time. Redis starts accepting client commands again, but responds to them with a BUSY error.

If you must kill the script at this point, there are two options available:

  • SCRIPT KILL command can be used to stop a script that hasn’t yet done any writes.
  • If the script has already performed writes to the server and must still be killed, use the SHUTDOWN NOSAVE to shutdown the server completely.

It is usually better to just wait for the script to complete its operation. The complete information on methods to kill the script execution and related behavior are available in the documentation.

#cloud #database #developer #high availability #howto #redis #scalegrid #lua-time-limit #redis diagram #redis master #redis scripts #redis sentinel #redis servers #redis transactions #sentinel-managed #server failures

Any Alpha

Any Alpha

1613122689

Top 3 Golang Web Frameworks In 2021

Golang is one of the most powerful and famous tools used to write APIs and web frameworks. Google’s ‘Go’ otherwise known as Golan orders speedy running local code. It is amazing to run a few programming advancements rethinking specialists and software engineers from various sections. We can undoubtedly say that this is on the grounds that the engineers have thought that it was easiest to utilize Go. It is always considered as ago for web and mobile app development because it is ranked highest among all the web programming languages.

Top 3 Golang web frameworks in 2021:

1.Martini: Martini is said to be a low-profile framework as it’s a small community but also known for its various unique things like injecting various data sets or working on handlers of different types. It is very active and there are some twenty and above plug-ins which could also be the reason for the need for add-ons. It deals with some principles of techniques like routing, dealing, etc, basic common tricks to do middleware.

2.Buffalo: Buffalo is known for its fast application development services. It is a complete process of starting any project from scratch and providing end to end facility for back-end web building. Buffalo comes with the dev command which helps directly to experience transformations in front of you and redevelop your whole binary. It is rather an ecosystem used to create the best app development.

3.Gorilla: Gorilla is the largest and longest-running Go web framework. It can be little and maximum for any user. It is also the biggest English-speaking community that comes with robust web sockets features so you can attach the REST codes to the endpoints giving a third-party service like Pusher.

So, these are some web frameworks that can be used for Golang language. Each framework has its unique points which are only found in them but all of them are the best. IF your developer is in search of one this is where you can find the best.

#top 3 golang web frameworks in 2021 #golang #framework #web-service #web #web-development

Top 15 Free JavaScript Frameworks for Web Applications

List of some useful JavaScript Frameworks and libraries for website, web apps, and mobile apps development, that developers should know about to make selection easier.
This article will help you understand the various types of JavaScript Framework available in the market. When it comes to choosing the best platform for you, it’s not only the number of features you need to consider but also its functionality. The ease with which it fits within your project is also an essential factor. The next step is to choose the framework that best fits your company requirements or you can select the best from the list of top web development companies to develop your product based on your requirements.

#javascript frameworks for web applications #web applications development companies #progressive javascript framework #javascript frameworks #javascript #frameworks