Author: Pedro Vidigal

Leading Through Crisis – What Ernest Shackleton Can Teach Us About the COVID Pandemic

In January 1915, polar explorer Ernest Shackleton’s ship became trapped in ice near Antarctica. For the next two years, he kept his crew of 27 men alive on a drifting ice cap, before leading them to safety. In this article…

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Cassandra Vulnerability – CVE-2020-13946 – Apache Cassandra RMI Rebind Vulnerability

On September 1, 2020, Apache disclosed a security vulnerability for Apache Cassandra. Summary: It’s possible for a local attacker without access to the Apache Cassandra process or configuration files, to manipulate the RMI registry to perform a man-in-the-middle attack and…

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Backup strategies in Cassandra

Cassandra is a distributed, decentralized, fault-tolerant system. Data is replicated throughout multiple nodes (centers) across various data centers. The fact that Cassandra is decentralized means that it can survive single or even multi-node failures without losing any data. With Cassandra,…

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Understanding the Java Virtual Machine (JVM) architecture part 1

What is garbage collection? Garbage collection (GC) is a form of automatic memory management. In essence what the garbage collection does is to attempt to reclaim garbage, ergo memory occupied by objects that are no longer relevant for the active…

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Grow and innovate your business with powerful analytics with Cassandra and Spark (part 1)

Organizations are tapping into increasingly sophisticated analytics techniques to improve opportunities for growth, innovation and competitive advantage. Organizations are increasing the sophistication of their analytics strategies to improve opportunities for growth, innovation and to take a competitive advantage. The analytics…

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