Understanding Data Mesh

Data Mesh Introduction In today’s data-driven landscape, organizations face significant challenges with traditional centralized data architectures. These systems often lead to bottlenecks, scalability issues, and delayed insights. As data volumes and complexity grow, a more flexible and responsive approach becomes critical. Data mesh offers a paradigm shift in data management, promoting a decentralized approach that aligns with mod…Read More

Understanding MQTT

MQTT (Message Queuing Telemetry Transport) Executive Summary Message Queuing Telemetry Transport (MQTT) is a lightweight, low-bandwidth, publish-subscribe messaging protocol designed for communication in constrained environments. Initially developed for remote sensors and control devices on low-bandwidth, high-latency networks, MQTT has become one of the dominant protocols used in Internet of Things (IoT) applications. Its efficiency, …Read More

Understanding Distributed Storage Systems

Distributed Storage Systems Introduction As data generation grows exponentially across industries, traditional storage systems struggle to meet the demand for scalability, fault tolerance, and high availability. Distributed storage systems offer a solution to these challenges by spreading data across multiple machines or nodes, ensuring efficient data management and high performance in large-scale environments. This paper explores …Read More

Okta - PKCE Verification Failed while requesting token

Let me clear a few concepts before I dive into the resolution for " PKCE Verification Failed " " Authorization Code " flow is an OAuth 2.0 flow , wherein an authorization code is issued by the Authorization Server . This code is used for requesting access tokens, used for accessing the protected resources. Authorization code is exchanged through the front-channel and is susceptible to interception attacks.Read More

How to rename an AWS Lambda function?

As of writing this article, there is no support in AWS to rename a Lambda function. However, there is an option to set an alias . And you can create multiple of them. The actual purpose of an alias , though, is to act as a pointer to a specific version of the lambda function. It can also act as a router to route traffic between two versions of the function with weight assignment e.g. to test it as a canary. If alias does not meet your needs, then t…Read More

Groovy - What is Memoization?

Memoization (a.k.a tabling) is a technique in programming where the result of a function call is stored in cache and when the function is subsequently called with the same parameters, the result is returned from the cache instead of executing the function again.Read More

Groovy - How to read and write to excel sheets with Groovy?

Scriptom provides a simple COM library for Groovy. It is a Groovy wrapper around JACOB (Java COM Bridge) which provides access to COM Automation components. Scriptom can be used to work with MS Office tools, Internet Explorer or any other Microsoft Windows COM based components. In this article, you will use Scriptom to read and write to excel files.Read More