Tag: Cache

Feed: CronJ. Author: Dilip Kumar Maurya; Chat messaging or Facebook messenger is a messaging app or platform. Now I am going to build a chat messaging service system design that will have the following features. Below are the features that I would like to include in my application. One to One Chating. Online / Sent / Read updates. Sending picture or other files. Database ( For database I’m using Cassandra). Security. Distributed Cache ( For this I’m using REDIS). Fig 1. Basic Structure of Application From here I will take each and every scenario of the application and will explain ... Read More

Feed: R-bloggers. Author: Pedro Coutinho Silva. I hope you will give me 7 minutes to convince you why CSS is a good thing, and why you should be using it in your projects. In this post I’ll give you a little overview of CSS and I’ll discuss adding CSS to R Shiny. In my future article I’ll compare SASS and CSS, and I’ll show you how you can use SASS in R. So, R Shiny provides scalability, fast prototyping, and power, but without CSS, it looks like this: Source: http://shiny.rstudio.com/gallery/faithful.html With CSS, it can look like this: source: https://github.com/leoluyi/ptt_give_dashboard Are ... Read More

Feed: Planet MySQL; Author: Michael McLaughlin; While building my student image on Fedora 30, I installed the MySQL PHP Connector (php-mysqlndrp) but neglected to install the Python Connector. This adds the installation and basic test of the Python Connector to the original blog post. You use the following command with a wildcard as a privileged user. The wildcard is necessary because you need to load two libraries to support Python 2.7 and 3.7, which are installed on Fedora 30. You also need to be the root user or a user that is found in the sudoer’s list: yum install -y ... Read More

Feed: R-bloggers. Author: Jason Timm. [This article was first published on Jason Timm, and kindly contributed to R-bloggers]. (You can report issue about the content on this page here) Want to share your content on R-bloggers? click here if you have a blog, or here if you don't. In this post, we investigate how (& how often) members of the 116th House of Representatives refer to the 45th president of the United States on Twitter. TRUMP, POTUS, PRESIDENT TRUMP, @realDonaldTrump — options abound. Here, we consider how a House Rep’s stance towards (or opinion of) 45 influences the choice of ... Read More

Feed: Microsoft Power BI Blog | Microsoft Power BI. Author: . We find great pleasure in announcing RC1 of SQL Server 2019 Analysis Services (SSAS 2019). The SSAS 2019 release is now feature complete! We may still make performance improvements for the RTM release. RC1 introduces the following features: Custom ordering of calculation items in calculation groups Query interleaving with short query bias for high-concurrency workloads Online attach for optimized synchronization of read-only replicas Improved performance of Power BI reports over SSAS multidimensional Governance setting to control Power BI cache refreshes SSAS 2019 features announced in previous CTPs are recapped ... Read More

Feed: Cloudwards. Author: Jacob Roach; SiteGround and A2 Hosting are two services featured heavily in our best web hosting guide. As two independent titans of the web hosting industry — each fit with reasonable pricing and a long list of features — it’s hard to make a bad choice when deciding between the two. However, as we saw in our SiteGround vs. InMotion comparison, there are still differences even when the two services are excellent.  In this A2 Hosting vs. SiteGround matchup, we’re going to explore those differences. While equally matched on most counts, things like A2 Hosting’s expanded lineup ... Read More

Feed: Planet PostgreSQL. In a developer’s ideal world there’s only one stable and one development version of the product. Everyone updates immediately to the next stable version and nobody cares about anything older.As far as I can tell this has never actually happened, ever, in the history of anything. Working on many versions PostgreSQL is a mature and stable codebase. Users often run very old versions and they are usually reluctant to perform major upgrades frequently. Any upgrade involves some risk – anyone who tells you otherwise probably also has a great deal for you on some prime real estate ... Read More

Feed: Planet MySQL; Author: Michael McLaughlin; There was an option during the Fedora 30 Workstation installation to add the Apache Web Server, but you need to set it to start automatically. Unfortunately, there was no option to install PHP, which I thought odd because of how many web developers learn the trade first on PHP with a LAMP (Linux, Apache, MySQL, Perl/PHP/Python) stack. You see how to fix that shortcoming in this post and how to install and test PHP, mysqli, and pdo to support MySQL 8. Before you do that make sure you install MySQL 8. You can find ... Read More

Feed: Cloudwards. Author: Jacob Roach; DreamHost is easily one of the best web hosting services we’ve reviewed. It offers a long list of plans, each feeling well-rounded with its price, in addition to excellent speed, superior security and inexpensive pricing. HostGator, on the other hand, has a few problems, namely in the privacy and speed departments.  In this DreamHost vs. HostGator comparison, we’re going to see how they stack up step-by-step, isolating the variables that make them shine and the ones that make them sink. At the end, you’ll know which is the best option for hosting your site. That ... Read More

Feed: Cloudwards. Author: Jacob Roach; SiteGround and DreamHost are two of the best web hosting providers available. Both offer a long list of features, competitive pricing and fantastic speed, earning each spots in our best web hosting for small business and best web hosting for WordPress guides. While both are excellent services, there can only be one winner in this SiteGround vs. DreamHost comparison. We will throw the providers into the ring to duke it out over a series of rounds. However, unlike our DreamHost vs. Bluehost or SiteGround vs. HostGator comparisons, the match hasn’t been decided before the bell ... Read More