CockroachDB is an Open Source NewSQL DBMS. If you are new to the NewSQL world - CockroachDB can run on Raspberry Pi to large cluster of servers. Distributed Online Transaction Processing (OLTP) is one of the widely known use case of CockroachDB. CockroachDB is an interesting DBMS. It uses PostgreSQL protocol and you'll feel to find some MySQL syntax. It has good things of both RDBMS and NoSQL. It … [Read more...]
Review of 101Domain For E-commerce
In a past article on ICANN's new domain name transfer policy, we mentioned 101domain as one of a few other service providers. After that article our readers asked us to know more about their total set of services. What attracted us to 101domain is their insightful blog on technical matters around domains, SSL, and corporate brand services. The articles on their blog demonstrate carefulness around … [Read more...]
MySQL Versus NewSQL
From our article What is NewSQL, a question possibly will come in mind - MySQL with InnoDB engine is also coming under the classification of NewSQL. Then why we need to think, learn, use the new software such as Google Spanner, Clustrix, NuoDB, TransLattice? NewSQL is the latest implementation of relational databases. Traditional relational databases including MySQL with MyISAM engine were … [Read more...]
Review of Samsung A50s Smartphone With Optimization Tips
After J7 Max, it is a good set from Samsung thinking their rule of hefty pricing. It records 4K/UHD video, has an on-screen ultrasonic fingerprint sensor, the screen is beautiful, it has Dolby Atmos. Samsung Galaxy A50s is not powered by a Snapdragon processor. What it offers is a good-enough performance with modern sensor and display for everyday use. Smartphones for regular may get lost or … [Read more...]
How to Package and Run Apache Twill (on Hadoop YARN)
YARN stands for Yet Another Resource Negotiator. YARN is a cluster management technology since Hadoop 2.0. YARN is being extensively used for writing applications by Hadoop Developers. Most of the readers of this website are beginners around big data. For that reason, we point towards the basic theoretical articles such as differences between batch processing and stream processing, differences … [Read more...]
Raspberry Pi Zero For Low Cost IoT Projects
There is nothing to disagree with the advantages and low cost of microcontrollers such as ESP32. But, by design ESP32 can not perform complex computing works. Adafruit's CircuitPython and MicroPython are good way to work with Python on microcontroller. But, there are many use-cases where using MicroPython/CircuitPython pushes to the limit. Cost of boards from Adafruit and Arduino are not cheap … [Read more...]
How to Install Apache Crunch (on Hadoop)
By now, we know the differences between batch processing and stream processing, differences between Hadoop and Spark. Here are the steps to install the Apache Crunch on Hadoop. Crunch is used to creating pipelines that are composed of many user-defined functions. Crunch can run with Hadoop MapReduce and Apache Spark. Apache Crunch library is for tasks which are difficult to implement with just … [Read more...]
What is NewSQL?
NewSQL is a group of newer relational database management system which promises to achieve the scalable performance like NoSQL while being ACID compliant. ACID is a set of properties, namely Atomicity, Consistency, Isolation, Durability. That "standard" intended to guarantee validity facing events such as power failure. Although, NewSQL systems vary widely in their internal architectures, their … [Read more...]
MongoDB versus MySQL
MySQL is the most popular relational database which is free to use. It is normal for many of the MySQL users to think - why we will learn MongoDB or any noSQL? Typically, MongoDB is for a different type of applications to meet today's need. You can think the visitor tracking plugin for your WordPress website using MongoDB. It is not a good use-case of MongoDB, but probably points where MongoDB can … [Read more...]
What is the Relationship Between Cloud Computing and IoT?
Virtualization is the technology behind Cloud Computing. Cloud Computing itself has different service models. We work on with self-hosted server with Infrastructure as a Service (IaaS) model of cloud computing. IaaS is used as a replacement of traditional virtual private servers, dedicated servers, shared servers for easiness, more control and lesser cost. Even at the end of 2019, the cost of a … [Read more...]
Raspberry Pi 3 Vs Raspberry Pi 4 For Dev Works
Raspberry Pi 4 released just a few months back from today. Raspberry Pi 3B+ has not become obsolete. It will be supported for the projects which work well with it. Unless you need the extra RAM for a project, getting a new board will invite to buy or 3D print an enclosure. The port layout of Raspberry Pi 3B+ is different than Pi 4. The more bad news is that - Pi4 gets hotter. Does it play 4K … [Read more...]