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Software Development

Tutorial: Using PySpark and the MapR Sandbox

PySpark is a Spark API that allows you to interact with Spark through the Python shell. If you have a Python programming background, this is an excellent way to get introduced to Spark data types and parallel programming. PySpark is a particularly flexible tool for exploratory big data analysis because it integrates with the rest of the Python data analysis ...

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Introducing Microservices iQ

Want to know the Top 6 Performance Challenges in Managing Microservices in a Hybrid Cloud? Download the Whitepaper from AppDynamics: Grab it now! As part of AppDynamics Summer ‘16 release, we are announcing Microservices iQ, a new intelligent application performance engine, that enables enterprises to efficiently manage microservice based application environments and deliver performance that delights their customers while exceeding ...

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[MEGA DEAL] The Developer’s AWS Mastery Bundle (85% off)

Become An In-Demand Cloud Guru & Programmer by Mastering Amazon Web Services Over These 4 Courses Hey fellow geeks, This week, on our JCG Deals store, we have an extreme offer. We are offering The Developer’s AWS Mastery Bundle for only $XX instead of the original price of $199, yeap that is a massive 85% off. Train to Pass A ...

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SPOOLing Queries with Results in psql

SQL*Plus, the Oracle database‘s command-line tool, provides the SPOOL command to “store query results in a file.” The next screen snapshot shows SPOOL used in SQL*Plus to spool the listing of user tables to a file called C:\pdf\output.txt.                 Both the executed query and the results of the query have been spooled to ...

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Securing NoSQL Databases: Use the Force

With stories of the thefts of millions of credit card records and sensitive employee data at some of the world’s largest companies and government agencies dominating recent headlines, it’s not surprising that organizations are doubling down on security. Security is finally starting to get top management’s attention. Ponemon Institute’s 2015 security report found that 55 percent of top executives rated ...

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How I Chose my Replacement for Parse.com Part 2

You probably recently received the “Next Steps from the Parse Team” newsletter in your inbox in which you were urged to take immediate action as it pertains to migrating your Parse.com-hosted apps. Or at least, you’re aware of the ultimate January 28, 2017 deadline for migrating your apps. While you should take such reminders seriously, there’s no need to panic. ...

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Testing Spark Streaming: Unit testing

There is enough evidence to prove the importance of automated testing. Projects in new fields often neglect automated testing, as the domain itself steals the attention of the developers. However, lack of testing implies ‘laugh now, cry later’. Some of the tools around Big Data space have been architected around testability or, at least, the community has taken care of ...

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How to avoid underestimating complexity

People involved in software projects would say that software development is about understanding complexity. What is complexity? Complexity is easy to define at a high level, but people get vague when pressed for a precise definition.  Let’s see if we can quantify the problem, then come back and define it.             Assume we need to ...

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Ye Olde Monolith

As a professional software engineer, you probably have encountered an architectural stumbling block known as a MONOLITH#1. A monolith is essentially a single tier application in enterprise architecture. Forget about the traditional break-down of Java EE application, where they break down an Uber-WAR file into presentation, business-logic and database tiers. That is just gloss over our very eyes, a single ...

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