News Aggregator

Top 7 React Native Components for Software Development

Aggregated on: 2022-01-28 10:34:45

React Native is one such framework that is used for software development. It allows app development for multiple platforms with a single code base for iOS, Android, Windows with a single code base. React Native is one of the most known and highly used cross-platform for mobile app development presented by Facebook and the most prominent active developers' communities. What Is React Native? React Native is a well-known JavaScript-based app framework used for mobile apps and software development. It enables developers to develop natively generated apps for iOS and Android. You can develop a React Native-Based application for various platforms using the same codebase as the software development company.

3 Things Every Engineer Should Know About Inclusive Design

Aggregated on: 2022-01-28 00:49:45

Fact: Over 26% of adults in the United States have some sort of disability. To ignore such a massive part of the population would be ill-advised for any company, legally, financially, and above all, ethically. How can you stay ahead of the curve when it comes to maintaining a progressive and responsive organization? We reached out to two experts - Alwar Pillai and Perry Trinier of Fable – on the topic of designing products that have inclusivity for people with disabilities at their core. Here are the 3 things they think every engineer, developer and product designer needs to know about inclusive design and how it will inevitably affect the future of their companies.

Getting Started With C# DataFrame and XPlot.Ploty

Aggregated on: 2022-01-28 00:04:45

For the Python programming language, Pandas is an efficient and popular data analysis tool, especially its Dataframe, used to manipulate and display data. For the .NET programming languages, we can use Deedle or Microsoft.Data.Analysis package available in NuGet which also provides a DataFrame class used to manipulate, transform, and display data. This example focuses on Microsoft.Data.Analysis package by demonstrating some basic features of the DataFrame class in Jupyter Notebook.

How to Provide Rate-Limiting Via Bucket4j in Java

Aggregated on: 2022-01-28 00:04:45

Hello, everyone. Today, I want to show how you can provide rate-limiting into your project based on the Token Bucket algorithm via Bucket4j. Every now and again, all of us face a problem with limiting our external API -- some functionality where we should limit calling to our API for many reasons.

How to Simulate a DockerHub Outage to Test Image Caching

Aggregated on: 2022-01-28 00:04:45

First off, happy new year! After facing a few patches of public registry downtime at the end of the year (both Docker Hub and ECR), one of our first goals of 2022 was to implement pull-through caching of public images. This would allow Shipyard users to continue building, testing, and reviewing their applications, even when outages happen.

Migration of Microservice Applications From WebLogic to Openshift

Aggregated on: 2022-01-27 23:04:45

The need for an environment to put software applications into service is a concept that is contemporary with the history of software development. While the software dimension of the business changes, there are also changes and improvements in technology, CI/CD practices, usage scenarios, and operational expectations — the environmental practices that allow the software to serve. In this article, we will discuss our experiences with the seamless migration of Spring Boot (version 2.5.6) microservice applications from Oracle WebLogic to the Red Hat OpenShift Container Platform. Also, the practices to ease and ensure the parallel running of applications in both platforms will be discussed.

The Role of CI/CD Pipeline in Software Development

Aggregated on: 2022-01-27 21:19:45

The CI/CD pipeline includes continuous integration, delivery, and deployment. DevOps teams use it to generate, test, and release new software automatically. This pipeline benefits from regular software changes and a more collaborative and agile team process. You've probably heard about the benefits of CI/CD tools, which are used to provide code more frequently and reliably. Let's examine what it is and how it benefits software development. What Does CI/CD Pipeline Stand For? There are two abbreviations for CI and CD: CI stands for continuous integration and CD for continuous delivery and deployment. The software development methodology is known as Continuous Integration, and Continuous Deployment (CI/CD) is based on the idea that incremental code changes are made frequently and consistently. Continuous Integration (CI)-triggered automated build and test stages ensure that code changes submitted into the source are trustworthy.

Adapter Design Pattern in Java [Language Translator] - Introduction, Example, and Implementation

Aggregated on: 2022-01-27 20:49:45

In the video below, we take a closer look at Adapter Design Pattern in Java [Language Translator] - Introduction, Example, and Implementation. Let's get started!

The 5 Principles of Agile Software Development Methods

Aggregated on: 2022-01-27 16:34:45

Over the years, software development methods have also upgraded parallelly with technological advancements. Agile software development methods are one approach in the current software development trends. Agile methodology breaks up the project into many phases and distributes the workloads across the teams. We prioritize continuous improvement at each stage rather than working on changes at the deployment stage altogether. Progress is constantly updated with the team members during the daily scrum meetings. The examples of agile-based development methods are scrum, Extreme Programming (XP), Feature-Driven Development (FDD), Adaptive Software Development (ASD), Crystal, Dynamic Systems Development (DSD), Lean Software Development, etc. The methods are selected according to the type of product/service to be developed. All these agile methods follow a set of dedicated principles. In this blog, we will focus on five crucial principles of agile methodology. 1. Be Open to Challenges and Changes The agile methodology focuses on being highly responsive to changes at all phases of software development. Our teams must be aware of what is going on in the project at any development phase. The agile method splits the tasks and deliverables into iterations to achieve this high degree of clarity. The iterations must be completed in shorter time frames, usually from a week to four. Ensure that the time frames align with the overall time allocated to the project.

DataWeave Exercise: Usage of Filter Function

Aggregated on: 2022-01-27 16:34:45

In this blog, I'll demonstrate how to use DataWeave filter functions in various ways. Input: All the examples below use the same input.

An Introduction to No-Code App Platform for Business

Aggregated on: 2022-01-27 15:49:45

What Is No-Code Development, and How Does It Work? No-Code development is a distinct method of software development that facilitates digital transformation in businesses of all sizes. In layman's terms, no-code development is the process of creating apps without writing any code. No-code platforms based on SaaS enable enterprises to produce software considerably quicker and for a fraction of the cost of a typical code-based approach. Traditional coding initiatives take ten times longer to complete than no-code development projects.

Learn Rust With Java, Part 1: The Introduction

Aggregated on: 2022-01-27 15:19:45

Hi everyone!!! This series of blogs to quickly learn the Rust language is my first blog after several attempts at writing :). This post might help Java developers who want to learn Rust as their next language. It will be a comparative study of the language features and implementation methodologies between Rust and Java. I also recommend the Rust Book for better learning.

Build an SMS App with Infobip

Aggregated on: 2022-01-27 15:19:45

SMS is a powerful way to connect with your users. Businesses all over the world use SMS texts to send appointment reminders, shipping notifications, customer satisfaction surveys, and more. For countries or customers with slower internet speeds, SMS can even function as a viable alternative to something like an in-app chat feature. In this article, we’ll demonstrate the power of SMS and showcase just how easy it is to get started. Together we’ll build a “Fun Fact of the Day” web app that allows users to enter their phone number to receive an SMS text with a fun fact. We’ll provide this functionality using the SMS API from Infobip, a cloud communications platform.

How To Get C++ Speed in Java Serialization

Aggregated on: 2022-01-27 12:49:45

Using Trivially Copyable Objects To Improve Java Serialisation Speeds For any low-latency software, it is vital that the most common operations introduce minimal latency. For example, in trading software, one common and time-sensitive operation is messaging between microservices. To minimize the memory footprint of the communication, all messages are serialized by the sender and deserialized by the receiver. Hence, from a performance perspective, it is vital that the process of serializing/deserializing introduces minimal latency. Read this article and learn more about the low-latency technique leveraging C++ methodology in Java: Trivially Copyable Objects and memcpy. Make common operations a little faster thereby saving a lot of time in aggregate operation. Serialization of Trivially Copyable Objects can be more than five times faster than that of regular Java objects and is supported by Chronicle libraries such as Chronicle Services and other libraries as described in this related article on DZone.

How I Built My Own Rewards Card

Aggregated on: 2022-01-27 12:49:45

Before Amazon caught my eye, I found enjoyment in visiting brick-and-mortar technology retailers to check out new and exciting products. One retailer I visited more than others was Best Buy. Around that time, I was asked if I would be interested in signing up for a Best Buy rewards card during the checkout process. Hearing that every single purchase I made at Best Buy would go towards points that led to financial rewards got my attention, and I signed up immediately. I was excited.

Supervised vs Unsupervised Machine Learning

Aggregated on: 2022-01-27 12:19:45

Understanding the Difference Between Supervised vs Unsupervised Machine Learning Artificial intelligence (AI) is being used to change our lives every day. When it comes to building AI programs, there are two approaches programmers tend to choose: supervised or unsupervised machine learning. The simple distinction between these is supervised machine learning utilizes labeled data to predict outcomes, while unsupervised machine learning does not.

Top 5 Apache Kafka Use Cases for 2022

Aggregated on: 2022-01-27 12:04:45

Apache Kafka and Event Streaming are two of the most relevant buzzwords in tech these days. Do you wonder about my predicted top 5 event streaming architectures and use cases for 2022 to set data in motion? Check out the following presentation and learn about the Kappa architecture, hyper-personalized omnichannel, multi-cloud deployments, edge analytics, and real-time cybersecurity. Some followers might notice that I did the same presentation a year ago about the top 5 event streaming use cases for 2021. My predictions for 2022 partly overlap with this session. That's fine. It shows that event streaming with Apache Kafka is a journey and evolution to set data in motion.

Introduction to Couchbase for Oracle Developers and Experts: Part 3: Data Types

Aggregated on: 2022-01-27 10:04:45

As part of data remodeling, while moving from the relational model to the JSON model, you’ll have to consider the data type mapping. In Oracle, you’ll have to create and declare the types of each column explicitly before you load the data or write queries. In Couchbase, you simply conform to JSON syntax and the data type interpretation is automatic and implicit. Here’s the overview of mappings, conversion, and arithmetic on these data types. Here’s Part 1 and Part 2 of this series. ReModeling: From Relational to Document Model Oracle Couchbase Model Relational, Object-relational JSON model with N1QL (SQL for JSON) Data Types A long list of data types https://docs.couchbase.com/server/current/n1ql/n1ql-language-reference/datatypes.html String Data types CHAR, VARCHAR, VARCHAR2, NCHAR, NVARCHAR, LOONGVARCHAR String, up to 20MB in length. All of the string data in JSON is Unicode. Date and Time Data Types DATE, TIME, TIMESTAMP, all these with TIMEZONE, INTERVAL Date, Time, Timestamp, all these with timezones should be represented in ISO 8601 format and saved as strings. N1QL has extensive functions for formatting, extraction, conversion, and arithmetic.

The One Timeless Benefit of Design Patterns

Aggregated on: 2022-01-27 00:34:45

There’s not much buzz about design patterns these days. They appear to have joined the hall of fame of accepted wisdom, alongside the Silver Bullet, SOLID and DRY. Lately, I had the opportunity to share some thoughts on the importance of good old design patterns with Koen Aerts, CTO of Team Rockstars IT. Here’s the gist of that talk in a more digestible format. Before I start, let me set some boundaries, as people can get doctrinaire about definitions. I refer to the good old bridge, builder, decorator, and factory patterns. Architectural patterns like MVC do not fall into the same category, much fewer paradigms like serverless and microservices (aka SOA the next generation).

The CSS Box Model

Aggregated on: 2022-01-27 00:34:45

The CSS box model is a term thrown around in CSS with very little context, but is probably the most fundamental things you can know in CSS. Simply put, the box model determines, the size, margin, and padding of any object on the page. It also refers to the weird way CSS handles 'inline' and 'block' content. The Box Model In HTML, every element creates a box. Some of these elements, such as span and p are inline, meaning they are in line with text, rather than structural elements of the page.

ER Diagrams vs. ER Models vs. Relational Schemas

Aggregated on: 2022-01-26 23:49:45

Introduction It's crucial to choose the correct model for your data before starting a project. Over the years, developers coined terms to describe the various systems they use to perform this vital planning. This article will explain the differences between three different planning systems: ER models, ER diagrams, and relational schemas. We'll learn important terminology, compare and contrast these three concepts, also look at some examples and considerations for each. ER Models and ER Diagrams "ER model" is short for "entity-relationship model," a high-level data model. As the name suggests, a data model depicts how a database is structured at a logical and visual level. In layman's terms, an ER model defines the elements and their relationship in a specific database. It's like a "blueprint" to your database, providing a simple view of the data.

Deploy JMeter on AWS Using Terraform

Aggregated on: 2022-01-26 23:49:45

Maintaining JMeter infrastructure for performance testing, CI/CD integration with the enterprise pipeline, and managing are cumbersome tasks. By leveraging the Infrastructure as Code solution, Terraform is one of the excellent ways to build, manage, and deploy JMeter infrastructure quickly and efficiently. In this blog, we are going to dive deeper into spinning up an AWS infrastructure with JMeter using Terraform. What Is Infrastructure as Code? Infrastructure as Code (IaC) helps to build, change, and version infrastructure safely and efficiently.

Most Popular Web Development Framework in 2022

Aggregated on: 2022-01-26 22:49:45

Websites are an integral part of businesses in this digital world to establish a prominent online existence. Sophisticated and intuitive websites are a great way to attract users. To develop outstanding websites and applications, you need the correct web framework. Many developers find frameworks like Vue, Meteor, Ruby on Rails, and Meteor extremely productive. Here we have presented the list of most popular web development frameworks in 2022. We will look at their features in detail to help you choose the perfect web framework.

Docker: How to Stop and Remove All Containers at Once

Aggregated on: 2022-01-26 18:04:45

It’s an understatement to say that Docker is a game-changer for systems engineers and developers. You can run almost any application with a single command and customize it for your environment via a consistent container-based interface. But as containers proliferate, controlling them gets more complicated, too. Managing containers from the command line can be painful, but setting up an orchestration tool like Kubernetes or Docker Swarm is overkill for smaller systems. Stopping and removing a container from the command line takes two steps. Stopping and removing two containers is four. And stopping and removing 10 containers is — well, you get the idea. Let’s look at how to make the Docker command line easier to use. We’ll focus on stopping and removing containers. Then, we’ll look at Docker Compose, another tool that makes managing smaller collections of containers easier.

Quantum Duality of API as a Business and a Technology

Aggregated on: 2022-01-26 17:34:45

As an API strategy store project manager who is responsible for the API program, you have to look at both of these two sides and find the balance. It’s really hard to say what the correct balance is because it totally depends on the current landscape, on the business models, as well as on the technology maturity that you have. So you have to analyze it, and then look at the maturity model, and have a proper way of increasing or improving the business models as well as improving your technology stack. What I’m going to do in this article is walk you through the concept of quantum duality of API as a business and API as a technology because a lot of organizations are focusing on API programs, but they are looking at only one aspect of this problem: either the business side or the technology side. However, we need to have a balance. This is where I’m going to discuss and share some of my experience working with different types of enterprises around the globe. The first thing we’ll talk about is the federation and business models around APIs, and then we will move on to how this polyglot and heterogeneous nature affects API development. From the technology side, it will be how you can move to the cloud and leverage cloud-native technologies and how you can modernize the development. All of these four pieces are tied together for a successful API program, so I’m going to discuss these concepts.

Managed Kubernetes Comparison: EKS vs GKE

Aggregated on: 2022-01-26 17:34:45

Kubernetes is changing the tech space as it becomes increasingly prominent across various industries and environments. Kubernetes can now be found in on-premise data centers, cloud environments, edge solutions, and even space. As a container orchestration system, Kubernetes automatically manages the availability and scalability of your containerized applications. Its architecture consists of various planes that make up what is known as a cluster. This cluster can be implemented (or deployed) in multiple ways, including adopting a CNCF-certified hosted or managed Kubernetes cluster.

How to Build Your First CI/CD Pipeline With Travis CI

Aggregated on: 2022-01-26 17:34:45

Continuous Integration is considered one of the best practices in development where code integrations are done frequently into the code repository rather than waiting to commit a larger version. As a part of continuous integration, the developer should ensure that integrations should not break the already available code, as being a shared repository would have a significant impact. To solve this problem and show how continuous integration and testing work, we’ll use one of the most popular continuous integration services: Travis CI pipeline. Travis CI pipeline would help the user report automatic build changes and test the integrations and deployment management. It also helps your code repository with improved and shippable software quality with reduced risks and better collaboration.

Tutorial on Voice Technology Implementation

Aggregated on: 2022-01-26 17:34:45

Perhaps you’ve heard about AI and Machine Learning’s popularity, as well as how these two techniques are addressing different markets as the future develops. Going further, as a part of AI and Machine Learning, there is Voice Technology, which is rising in demand. If you’ve been considering whether voice technology is worth paying attention to or if it’s just a trend, you’ll find this article useful. Even the most ardent doubters must admit that voice-based solutions are gaining popularity faster than many other advancements, which is highly questionable. To dispel any doubts, let’s discover the statistics. According to projections, the number of voice assistants could hit 8.4 billion by 2024, surpassing the global population. Besides, Statista estimates that the worldwide voice recognition industry is expected to expand from 10.7 US$ in 2020 to 27.16 billion US$ in 2026. That being said, we can notice the huge expansion of the market, and that could trigger the majority of apps to correspond to the level and undertake an upgrade.

How to Handle Login Pop-ups in Selenium WebDriver Using Java

Aggregated on: 2022-01-26 16:49:45

Have you ever been asked for credentials while accessing a website on a browser? Let us understand why we are asked to fill up the credentials while accessing a few websites. This article mainly focuses on the introduction to authentication pop-ups on the website and the different ways to handle them using Selenium. Before we dive in deep and see how to handle login pop-ups in Selenium WebDriver, let us first take a look at how the authentication pop-up looks on a website. Let us navigate to a sample website. While accessing the website, the user would be prompted with a login pop-up. The user has to enter the username and password to further navigate the site. Below is the screenshot of the authentication pop-up prompted on the website.

How to Use Aspect Ratio CSS Property in Responsive Web Designs

Aggregated on: 2022-01-26 16:49:45

Being web developers, we are hardly satisfied by the dimensions of our elements on the web page. What if I could increase that image width to 30px more? Or maybe 20 percent? Deciding the final width at the end now requires us to adjust the height as well! What if multiple elements were to be adjusted according to the new values like in a CSS-grid or subgrid structure? This is where the CSS aspect ratio comes into play. The aspect ratio is extremely important given the effect a UI has on the end-user. The aspect ratio is always a measured property that needs adjustments and careful scrutiny. It had become frustrating to waste a lot of time just to adjust an element to look perfectly on multiple devices with time. With the recent trends in web development, there has been an increase in the complexities of the project. A small change in a single element’s dimensions can cause a ripple effect on the complete web page.

How to Monitor Endpoints in Kubernetes Using Blackbox Exporter

Aggregated on: 2022-01-26 16:49:45

Monitoring endpoints is an important aspect of system observability for diagnosing performance and availability issues. In this article, we will cover in detail how to achieve endpoint monitoring in Kubernetes using Blackbox Exporter and Prometheus. What is a Prometheus Exporter? Prometheus exporter is a translator that can fetch statistics from a non-Prometheus system and can convert the statistics to Prometheus understandable metrics, i.e. the Prometheus exposition format. There are a number of Prometheus exporters that are used to export existing metrics from third-party systems to Prometheus metrics, some of them are:

Tree Data Structure Questions for Coding Interviews Preparation

Aggregated on: 2022-01-26 15:19:45

Hello folks, I have been sharing a lot of resources about programming job interviews like the books, courses, and some interview questions on the software design and data structures like an array, string, and linked list. So far, we have looked at only the linear data structures, like an array and linked list, but all information in the real world cannot be represented in a linear fashion, and that's where tree data structure helps.

A New Approach to Solve I/O Challenges in the Machine Learning Pipeline

Aggregated on: 2022-01-26 15:04:45

Background The drive for training accuracy leads companies to develop complicated training algorithms and collect a large amount of training data with which single-machine training takes an intolerable long time. Distributed training seems promising in meeting the training speed requirements but faces the challenges of data accessibility, performance, and storage system stability in dealing with I/O in the machine learning pipeline. Solutions The above challenges can be addressed in different ways. Traditionally, two solutions are commonly used to help resolve data access challenges in distributed training. Beyond that, Alluxio provides a different approach.

Using SingleStore as a Kafka Producer

Aggregated on: 2022-01-26 14:04:45

Abstract In a previous article series, we looked at how SingleStore Pipelines could be used to ingest data from a Kafka cluster running on the Confluent Cloud. We can also push data from SingleStore to a Kafka cluster. This is very easy to achieve and, in this article, we'll see how. Introduction SingleStore Pipelines are a compelling feature that can ingest data at scale. However, there may be situations where we would like to push data from SingleStore to an external source. Let's see how we can do this with Apache Kafka™. For ease of use, we'll develop mainly in the cloud using the SingleStore Managed Service and the Developer Duck plan on CloudKarafka.

The Future of Cloud-Native Databases Begins With Apache Cassandra 4.0

Aggregated on: 2022-01-26 13:34:45

“Reliability at massive scale is one of the biggest challenges we face at Amazon.com, one of the largest e-commerce operations in the world; even the slightest outage has significant financial consequences and impacts customer trust.” This was the first line of the highly impactful paper titled “Dynamo: Amazon’s Highly Available Key-Value Store.” Published in 2007, it was written at a time when the status quo of database systems was not working for the massive explosion of internet-based applications. A team of computer engineers and scientists at Amazon completely re-thought the idea of data storage in terms of what would be needed for the future, with a firm footing in the computer science of the past.

Best Practices: 5 Risks To Assess for Secure CI Pipeline

Aggregated on: 2022-01-26 13:34:45

Introduction As the computing world continues to develop new processes for creating software, criminals continue to evolve their own techniques that exploit the flaws in those processes. DevOps is the latest trend in software development, and it is characterized by high levels of automation. More and more parts of the software development process can occur without human intervention which speeds up development. However, this is not without its drawbacks. Less human involvement means less oversight from start to finish, and it also means more technologies to potentially exploit or abuse. Most of the risk involved is related to using sensitive information within automation, allowing for several ways to steal secrets. There are also things like code tampering to worry about. To keep your code and secrets safe, you should add the following security practices to your CI pipeline.

Import data into CockroachDB with Kerberos authentication

Aggregated on: 2022-01-26 13:04:45

Articles Covering CockroachDB and Kerberos I find the topic of Kerberos very interesting and my colleagues commonly refer to me for help with this complex topic. I am by no means an expert at Kerberos, I am however familiar enough with it to be dangerous. That said, I've written multiple articles on the topic which you may find below: Part 1: CockroachDB with MIT Kerberos Part 2: CockroachDB With Active Directory Part 3: CockroachDB With MIT Kerberos and Docker Compose I was recently asked by a customer whether GSSAPI gets in the way of doing a table import in CockroachDB. The short answer is it shouldn't as GSSAPI is abstracted from any bulk-io operations. I've previously written articles on doing an import into Cockroach, here and here and encourage you to review those articles. So today we're going to focus on specifically the import with Kerberos.

Giving Your Legacy Applications an API Facelift

Aggregated on: 2022-01-26 12:04:45

Let’s face it: In today’s modern world of cloud and containers, there are still thousands of legacy applications that were not written with an API-first approach. Some legacy systems can still provide tremendous value today, but the means for accessing them are completely out of date, thus rendering them almost useless. Kong, an open-source API gateway, can help with this! In this post, we’ll walk through creating an extremely simple—but powerful—Kong Gateway Lua plugin to showcase how you could put an API in front of a legacy application that you could otherwise only access through a CLI.

7 Tools for Code Review Engineers - GitHub Edition

Aggregated on: 2022-01-26 12:04:45

Code reviews are a fundamental part of the software development lifecycle, allowing you to identify bugs early. If you perform code reviews at your company, you can incorporate several tools to have a more robust development workflow and to make your job easier. This blog post focuses on tools that can help you improve your code review GitHub workflow. Some can be integrated directly in GitHub, while others work as standalone desktop clients. Let’s check them out.

Using Render and Go for the First Time

Aggregated on: 2022-01-26 11:34:45

My ability to remember things can drive my wife crazy. Earlier this week, she asked me two questions after I finished telling her a story that I had recalled from my long-term memory: How do you remember such things?

Intro to Spring Data MongoDB Reactive and How to Move It to the Cloud

Aggregated on: 2022-01-26 09:49:44

In this post, we're going to see how to configure and implement database operations using Reactive Programming through Spring Data Reactive Repositories with MongoDB to run locally and then see how to move it smoothly to the cloud through Platform.sh. Reactive programming is a programming paradigm that promotes an asynchronous, non-blocking, event-driven approach to data processing. Reactive programming involves modeling data and events as observable data streams and implementing data processing routines to react to the changes in those streams.

The five skills you must master to be outstanding as a software engineer

Aggregated on: 2022-01-26 08:04:45

An area of technology has been growing exponentially and bringing with it several opportunities and specializations. Among these thousands of options, we have software engineering and architecture. However, with so much content and easy access to happiness, how would be the best way to reach the goal that will achieve the desired satisfaction? In this debate, we will significantly address the area of expertise in software engineering, in other words, career approaches such as "techniques." Let's share five engineering skills for you, the professional software technician.

Debugging RAM: Detect/Fix Memory Leaks in Managed Languages - Heap Deep Dive (Part 2)

Aggregated on: 2022-01-26 02:04:44

In the previous installment, I talked about the Java garbage collector. In this part, I'll discuss the most common memory issue: the memory leak. I focus on managed languages, specifically Java, but I will mention some native code tools which are interesting. A memory leak contributes to heap size, which isn't the most pressing bug in most cases. But when left alone, memory usage can become a problem and, by that point, finding the issue is hard. Unlike a crash dump, where we get a reference to a specific line, a memory leak can remain hidden. What are the Consequences of Memory Leaks? Unfortunately, this often means that memory leaks can carry into production and even cause problems to end users. E.g. This recent story about memory leaks hobbling Apples latest M1 computers. Virtual memory effectively means operating systems can carry memory leaks for a very long time. The performance overhead will be noticeable, though.

CRUD with DynamoDB Using Serverless and NodeJS

Aggregated on: 2022-01-26 02:04:44

Introduction In this post, we are going to see how to make a CRUD application using DynamoDB, AWS Serverless, and NodeJS, we will cover all CRUD operations like DynamoDB GetItem, PutItem, UpdateItem, DeleteItem, and list all the items in a table. Everything will be done using the AWS Serverless framework and on NodeJS, this is part 1 of this series, in part 2 we are going to add authentication to this application, for now, let’s get started. Project Setup Our project folder structure will look like this

Template Design Pattern or Template Method Design Pattern in Java

Aggregated on: 2022-01-25 23:34:44

In the video below, we take a closer look at the Template Design pattern or the Template Method Design pattern in Java. Let's get started!

Configuring Amazon S3 Using Mulesoft

Aggregated on: 2022-01-25 23:34:44

Introduction Amazon S3 or Amazon Simple Storage Service is a service offered by Amazon Web Services to store objects, download, and use the data kept in the S3, and help to build an application that requires internet storage. Mulesoft provides the Amazon S3 connector to help you easily connect to your S3 and get on with your integration.

Mule Email Connector

Aggregated on: 2022-01-25 23:04:44

In this article, we are going to explore all the features provided by mule Email Connector. Email connector helps you to Send, Mark, List, and Delete Emails. We see a simple demo for each of these features now. Before starting with developing the Mule Application we need to do some configuration settings in the Gmail account.

20 Best Proxies Online: Free and Paid Services

Aggregated on: 2022-01-25 23:04:44

Online privacy is hard to achieve. In the real sense, it seems impossible. It's even riskier to browse the web if you feel the government or some agencies are monitoring you. And how about blockades that stand against your web scraping escapades? These trackers won't just stop snooping and censoring. Well, this is where proxies come in. They let you maintain a certain level of seclusion on the internet. With proxies, you can fool sniffers and blockers and be sure that you've taken a bold step in covering your web tracks.

How to Choose a Container Registry: The Top 9 Picks

Aggregated on: 2022-01-25 23:04:44

The invention of the open-source Docker Engine in 2013 resulted in containerization being one of the first steps towards modernizing the process of developing cloud applications. Before the invention of the Docker Engine, you had to configure applications for a specific computer/hardware. The downside of this approach was that it could be time-consuming to move an application from one server to another if the need arose. But, with the launch of the Docker Registry, the longstanding challenge of managing and organizing container registries was solved. In fact, the Docker Registry rapidly became the software industry standard. Today, container registries help firms to collect, store, and deliver container images for different phases through their software development process within a central location.

How to Answer Network Outage Questions

Aggregated on: 2022-01-25 20:19:44

Enterprise network outages are a big deal. When a company’s network goes down, the employees or customers can’t do what they need to do. The impact ranges from minor frustration to major loss of income for a business. One thing all network outages come with is stress. Business teams and company leaders descend on network teams demanding answers to their network outage questions.