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Software Development

Tuning PostgreSQL with pgbench

When it comes to performance tuning an environment, often the first place to start is with the database. The reason for this is that most applications rely very heavily on a database of some sort. Unfortunately, databases can be one of the most complex areas to tune. The reason I say that is because tuning a database service properly often ...

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Connecting Pentaho Data Integration to MapR Using Apache Drill

Pentaho Data Integration (PDI) provides the ETL capabilities that facilitate the process of capturing, cleansing, and storing data. Its uniform and consistent format makes it accessible and relevant to end-users and IoT technologies. Apache Drill is a schema-free SQL-on-Hadoop engine that lets you run SQL queries against different data sets with various formats, e.g. JSON, CSV, Parquet, HBase, etc. By ...

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7 Video Courses to Prepare You for the New IT Era

The world around us is changing rapidly. And as programmers, we need to stay up to date with the most recent developments. Some of the most important trends that you need to be on top of are Cloud Computing, DevOps, Machine Learning and Ethical Hacking. Machine learning refers to the part of computer science that “gives computers the ability to ...

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Microservice using AWS API Gateway, AWS Lambda and Couchbase

This blog has explained the following concepts for serverless applications so far: Serverless FaaS with AWS Lambda and Java AWS IoT Button, Lambda and Couchbase The third blog in serverless series will explain how to create a simple microservice using Amazon API Gateway, AWS Lambda and Couchbase. Read previous blogs for more context on AWS Lambda. Amazon API Gateway is a fully managed service ...

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Significant Software Development Developments of 2016

This post is my personal and opinionated assessment of some of the most significant developments related to software development in 2016. This is my tenth year for this annual post and my previous years’ assessment are available for 2015, 2014, 2013, 2012, 2011, 2010, 2009, 2008, and 2007. As with these previous years’ assessments, this assessment of 2016’s major developments ...

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Carrying Worlds Within Worlds in Your Android Device

Smartphones (and, because of their size, to a lesser extent, tablets) are something that very few futurists or science fiction writers saw coming: most of the benefits of an advanced personal computer but in something so small you can carry it with you wherever you go. Mobile phones have rapidly evolved from bulky, ineffective portable phones, exclusively for the use ...

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Multilayer Perceptron Predictions Exposed

Learning Deep Learning Currently, I learn Deep Learning fundamentals with the help of Jason Brownlee’s Deep Learning with Python book. It provides good practical coverage of building various types of deep learning networks such CNN, RNN etc. Running each model in the book is accompanied with providing various metrics, for instance, accuracy of the model. But accuracy does not provide a real ...

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Writing RESTful Service using Node, Express and MongoDB

Looking at the popularity of Node.js, I thought of learning and creating a rest api that should create, delete and get employees from database and fortunately I did it. With this post, I will try to replicate the steps I followed while writing it along with references. Assuming Node.js is already installed in our system, let’s start creating nodejs-rest-api, following ...

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Anemic Objects Are OK

I thought for a while that object-oriented purism has died off. But it hasn’t – every now and then there’s an article that tries to tell us how evil setters and getters are, how bad (Java) annotations are, and how horrible and anti-object-oriented the anemic data model is (when functionality-only services act upon data-only objects) and eventually how dependency injection ...

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