Rajesh Kumar

Grafana is one of the most widely-used interactive data visualization tools on the market. It’s open-source, powerful, highly configurable and free to use. I’ve walked you through the process of installing Grafana on Ubuntu Server 20.04, and this time around, I’ll help you connect that newly installed platform to a MySQL database, so you can visualize…

Step Action Description 1 Open System Preferences Click on the Apple menu () in the top-left corner of the screen and select “System Preferences.” 2 Select Keyboard In the System Preferences window, click on the “Keyboard” icon. 3 Go to Input Sources Click on the “Input Sources” tab at the top of the Keyboard preferences…

Feature VictoriaMetrics Prometheus Architecture Single-node and clustered Single-node Performance High ingestion and query throughput Efficient for medium-scale setups Scalability Horizontally scalable in clustered mode Limited to vertical scaling Data Compression Advanced compression techniques for cost efficiency Basic compression Data Model Multi-dimensional (similar to Prometheus) Multi-dimensional with key/value pairs Query Language PromQL PromQL Data Collection Supports…

Changing the Mac OS mouse scroll behavior to mimic Windows involves adjusting a few settings to reverse the scroll direction and possibly modify the scrolling speed. Here’s a step-by-step guide to achieve this: Reverse the Scroll Direction Adjust Scrolling Speed

“Linux” refers to the Linux kernel, the core of many operating systems (known as distributions, or “distros”) that manage a computer’s hardware and resources, like CPU, memory, and storage devices. Distros include Ubuntu, Fedora, and Debian, among others. Here’s a basic overview of how Linux works: 1. Kernel The kernel is the heart of the…

How Apache Solr works? Apache Solr is a powerful, scalable open-source search platform built on Apache Lucene, which is a high-performance, full-featured text search engine library. Solr is widely used for enterprise search and analytics use cases because it can handle large volumes of data and offers features such as full-text search, faceted search, real-time…

What is Apache Solr Core? In Solr terminology, there is a sharp distinction between the logical parts of an index (collections, shards) and the physical manifestations of those parts (cores, replicas). In this diagram, the “logical” concepts are dashed/transparent, while the “physical” items are solid. How to create Apache Solr Core?

The Vector Space Model (VSM) is a technique used in information retrieval (IR) to analyze and compare text documents. It represents documents and queries as vectors in a high-dimensional space. Each dimension corresponds to a unique term in the entire collection of documents. The position of a vector in the space reflects the importance of…