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A Brief History of Hadoop: Hadoop was created by Doug Cutting, the creator of Apache Lucene, the widely used text search library. Hadoop has its origins in Apache Nutch, an open source web search engine, itself a part of the Lucene project. The Origin Of The Name “hadoop”. Hadoop is not an acronym; it’s a […]
Big Data is a collection of high-volume, high-velocity and high-variety information assets that demand cost-effective, innovative forms of information processing for enhanced insight and decision making. Big data is data that exceeds the processing capacity of conventional database systems. The data is too big to fit traditional data-stores, moving too fast to be churned by […]
Hi, Before writing this blog, I would first like to make you familiar with one quote “Be liberal in what you accept, and conservative in what you send”. Yes that’s what HTTP robustness protocol states. Scenario : We have a use case where our server need to read XML files that are large containing 400 […]
When we are working on front-end part, then many times we face a situation where same HTML repeats on the same page or different pages, at that time we think of making that HTML a component. When using AngularJS framework, we can easily make components with the help of directives. Let’s quickly understand what a […]
In continuation with my previous article EBS Snapshot using Backup_Monkey, we have discussed one issue associated with BackUp Monkey utility. The issue was that it use’s “BACKUP_MONKEY” prefix and tag the snapshot with this prefix. As you can see in the Description, BACKUP_MONKEY prefix is used. So this create’s a redundancy while finding the exact […]
Hi everyone, Ever wished for a ‘groovier’ way to iterate through two distinct dates? Well, Groovy 2.2 gives you two methods via the ‘DateGroovyMethods’ class to do exactly that: upto() and downto(). Here is the code showing the usage: [java] Date startDate = new Date() – 7 Date endDate = new Date() startDate.upto(endDate) { it […]
Let us take a very common use-case: “There will be a registration page for users, where users will provide their required details along with their picture”. Details would be saved to MongoDB while the pictures would be uploaded to Cloudinary or S3 with user unique id.” Suppose we have User Schema as given below: [js] […]
When I started working on Grails I quickly noticed one caveat in its URL patterns. I wonder why on the Earth anybody would want such camel casing in URLs. Misreading the case sensitive nature of a Grails app URL can lead to broken links and 404 errors. That means you need to be careful when […]
Hi everyone, Recently in my Grails project I had to implement various fusion charts simultaneously on a single page. When I started implementing multiple fusion charts on a single page, the code became quite messy and complex. It became difficult even for me to understand and handle so many charts. This resulted in a lot […]
