Zookeeper is a centralized service to handle distributed synchronization. Kafka uses zookeeper to handle multiple brokers to ensure higher availability and failover handling. But what if zookeeper failed? We can’t take a chance to run a single Zookeeper to handle…
This article deals with system process and resource allocation monitoring. Htop is external tools available for various Linux packages. For demonstration i am using Ubuntu 14.10 as Linux distribution. Introduction. Htop is process monitoring tool and alternative for “Top” command…
Pull to refresh is a widely adopted feature in mobile apps. Facebook, Gmail, Instagram almost all popular apps have this feature where the user can drag the screen downward that signals the server to send new data. We have already…
KYC (know your customer) is becoming mandatory for a majority of internet applications such as finance, insurance, medical proofs. In short, wherever money is involved, the KYC process is becoming mandatory either by regulation or by the company itself to…
Unikernels have been predicted to be the successor to container technology for a few years now because of their purported speed, security, and size but adoption has been lagging – why? Well, before answering that question let’s define what a…
The easiest and efficient way to take Screenshot on your Mac is: Press Command + Shift + 4 Press Space and the mouse pointer will change to the camera icon Click on the screen to take the screenshot, find it…
When there is a large number of records to be fetched for a particular query and because fetching such huge data and rendering on the screen will downgrade the application performance. To solve this issue we need to fetch and…
NodeJS v11.7.0 is released and we have one of the most asked feature requests i.e threads. As we all know, Node provides the developer with a single-threaded system and internally uses threads to manage various I/O calls which work great…
Since its launch in 2014, React has surged in popularity to become one of the most widely-used JavaScript libraries out there. That’s a trend that’s only likely to continue in 2019 – so what’s driving React’s popularity? Let’s study some…
Scraping the web is a quite old technique to generate data for search engines, data science, surveillance etc. In this article, we are going to learn how to perform web scraping using Node js and a tool called proxycrawl. What…
