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The Latest Cloud Architecture Topics

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Kubernetes Today
Delve into the serverless trend advantages and highlight key open-source solutions that bridge the gap between serverless and Kubernetes.
October 20, 2023
by Gal Cohen
· 5,677 Views · 5 Likes
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Composite Container Patterns in K8S From a Developer's Perspective
The goal of this article is to present 3 popular extensibility architectural patterns from a developer's perspective using well-known programming principles.
October 20, 2023
by Daniela Kolarova DZone Core CORE
· 4,760 Views · 3 Likes
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Scaling Up With Kubernetes
Explore the world of containers and microservices in K8s-based systems and how they enable the building, deployment, and management of cloud-native applications at scale.
October 20, 2023
by Saurabh Dashora DZone Core CORE
· 5,766 Views · 6 Likes
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The State of Kubernetes: Self-Managed vs. Managed Platforms
Look at the current state of managed Kubernetes offerings as well as options for self-managed clusters. Discuss the pros and cons as well as recommendations.
October 20, 2023
by Yitaek Hwang DZone Core CORE
· 8,198 Views · 5 Likes
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Enhancing Customer Experience: Streamlining Orders With Custom Email Notifications in IBM Cloud
IBM Cloud allows customers to simplify their order management process by using custom email notifications through Event Notifications.
October 19, 2023
by Pradeep Gopalgowda
· 3,050 Views · 2 Likes
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Developer Week CloudX 2023: Better Security and Accessibility in the Cloud
Discover DeveloperWeek CloudX: Uniting Global Cloud Experts! Explore insights from security, accessibility, and DevOps leaders from this year's event.
October 19, 2023
by Dwayne McDaniel
· 3,055 Views · 1 Like
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The 3 Stages of an Effective Test Data Strategy
Testing is crucial for delivering quality applications quickly, but providing the right test data remains a major bottleneck.
October 17, 2023
by Rich Jordan
· 3,336 Views · 2 Likes
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Enhanced Security for Your Secrets With AWS Secrets Manager
AWS Secrets Manager secures credentials with encryption and access controls while providing robust protection against threats.
October 17, 2023
by Raghava Dittakavi
· 3,729 Views · 2 Likes
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What is a Servlet Container?
In this post, I write a little bit about the basic ideas of web server, Servlet container and its relation with JVM. I want to show that Servlet container is nothing more than a Java program. 1. What is a Web Server? To know what is a Servlet container, we need to know what is a Web Server first A web server uses HTTP protocol to transfer data. In a simple situation, a user type in a URL (e.g. www.programcreek.com/static.html) in browser (a client), and get a web page to read. So what the server does is sending a web page to the client. The transformation is in HTTP protocol which specifies the format of request and response message. 2. What is a Servlet Container? As we see here, the user/client can only request static webpage from the server. This is not good enough, if the user wants to read the web page based on his input. The basic idea of Servlet container is using Java to dynamically generate the web page on the server side. So servlet container is essentially a part of a web server that interacts with the servlets. Servlet container is the container for Servlets. 3. What is a Servlet? Servlet is an interface defined in javax.servlet package. It declares three essential methods for the life cycle of a servlet – init(), service(), and destroy(). They are implemented by every servlet(defined in SDK or self-defined) and are invoked at specific times by the server. The init() method is invoked during initialization stage of the servlet life cycle. It is passed an object implementing the javax.servlet.ServletConfig interface, which allows the servlet to access initialization parameters from the web application. The service() method is invoked upon each request after its initialization. Each request is serviced in its own separate thread. The web container calls the service() method of the servlet for every request. The service() method determines the kind of request being made and dispatches it to an appropriate method to handle the request. The destroy() method is invoked when the servlet object should be destroyed. It releases the resources being held. From the life cycle of a servlet object, we can see that servlet classes are loaded to container by class loader dynamically. Each request is in its own thread, and a servlet object can serve multiple threads at the same time(thread not safe). When it is no longer being used, it should be garbage collected by JVM. Like any Java program, the servlet runs within a JVM. To handle the complexity of HTTP requests, the servlet container comes in. The servlet container is responsible for servlets’ creation, execution and destruction. 4. How Servlet container and web server process a request? Web server receives HTTP request Web server forwards the request to servlet container The servlet is dynamically retrieved and loaded into the address space of the container, if it is not in the container. The container invokes the init() method of the servlet for initialization(invoked once when the servlet is loaded first time) The container invokes the service() method of the servlet to process the HTTP request, i.e., read data in the request and formulate a response. The servlet remains in the container’s address space and can process other HTTP requests. Web server return the dynamically generated results to the correct location The six steps are marked on the following diagram: 5. The role of JVM Using servlets allows the JVM to handle each request within a separate Java thread, and this is one of the key advantage of Servlet container. Each servlet is a Java class with special elements responding to HTTP requests. The main function of Servlet contain is to forward requests to correct servlet for processing, and return the dynamically generated results to the correct location after the JVM has processed them. In most cases servlet container runs in a single JVM, but there are solutions when container need multiple JVMs. From Program Creek
October 16, 2023
by Ryan Wang
· 162,740 Views · 34 Likes
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Oracle Outlines Vision for AI and Cloud-Driven Future
Larry Ellison believes generative AI is transformational and details the unique advantages of Oracle Cloud for building enterprise AI apps
October 16, 2023
by Tom Smith DZone Core CORE
· 3,013 Views · 2 Likes
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AWS Lambda Pricing for a Serverless Application
In this blog post, we’ll briefly compare AWS Lambda Pricing with other Cloud providers and discuss the key elements of the AWS Lambda pricing model.
October 16, 2023
by Rahul Shivalkar
· 3,246 Views · 1 Like
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Nebraska.Code() — Developing in the Great Plains
With topics ranging from OSS contribution to getting along with your coworkers to using Azure Key Vault at scale, there was a lot of knowledge shared.
October 16, 2023
by Dwayne McDaniel
· 3,371 Views · 1 Like
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Autoscaling Kubernetes Worker Nodes With Karpenter
How to set up and use Karpenter for autoscaling and collecting underutilized spot and on-demand instances for AWS EKS.
October 16, 2023
by Anadi Misra
· 3,626 Views · 2 Likes
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Unlocking the Cloud's Best-Kept Secret: Maximize Your Website's Potential With AWS S3 Static Hosting
The article highlights the advantages of hosting static websites on S3, such as high availability, scalability, unlimited bandwidth, and robust security features.
October 16, 2023
by Satrajit Basu DZone Core CORE
· 2,447 Views · 1 Like
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Platform Engineering Trends in Cloud-Native: Q&A With Tom Wilkie
How Kubernetes has lowered marginal costs of services, enabled composability, and driven an explosion of telemetry data needing improved observability.
October 16, 2023
by Tom Smith DZone Core CORE
· 3,702 Views · 3 Likes
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Event-Driven Architecture With Serverless Functions – Part 1
In this series of articles, we are going to explain what is the missing piece in stream processing, and in this part, we’ll start from the source.
October 14, 2023
by Yaniv Ben Hemo
· 5,813 Views · 3 Likes
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Microsoft AI Involuntarily Exposed a Secret Giving Access to 38TB of Confidential Data for 3 Years
The story of how an overprovisioned SAS token exposed a massive 38TB trove of private data on GitHub for nearly three years.
October 14, 2023
by Thomas Segura
· 5,977 Views · 5 Likes
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Handling Secrets With AWS Secrets Manager
Better understand AWS Secrets Manager, how it works under the hood, and how to access it from Kubernetes clusters.
October 13, 2023
by Tiexin Guo
· 4,319 Views · 2 Likes
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Platform Engineering Trends in Cloud-Native: Q&A With Jonas Bonér
Cloud abstractions have evolved developer-infrastructure relations and event-driven microservices patterns. Higher abstractions are emerging to manage complexity.
October 13, 2023
by Tom Smith DZone Core CORE
· 2,824 Views · 3 Likes
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Top 30+ Spring Boot Interview Questions With Answers
This post will present you with a curated set of often-requested Spring Boot interview questions to help you ace your interviews.
October 13, 2023
by Gyan Mishra
· 7,308 Views · 7 Likes
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