DZone.com Feed

Web App Load Testing Using Maven Plugins for Apache JMeter, and Analyzing the Results (Tue, 02 Dec 2025)
In this article, we will walk you through how to conduct a load test and analyze the results using Java Maven technology. We'll covering everything from launching the test to generating informative graphs and tables. For this demonstration, we'll utilize various files, including Project Object Model (POM) files, JMeters scripts, and CSV data, from the jpetstore_loadtesting_dzone project available on GitHub. This will help illustrate the steps involved and the functionality of the necessary plugins and tools. You can find the project here: https://github.com/vdaburon/jpetstore_loadtesting_dzone.
>> Read More

Apache Phoenix With Variable-Length Encoded Data (Tue, 02 Dec 2025)
Apache Phoenix is an open-source, SQL skin over Apache HBase that enables lightning-fast OLTP (Online Transactional Processing) operations on petabytes of data using standard SQL queries. Phoenix helps combine the scalability of NoSQL with the familiarity and power of SQL. By supporting large-scale aggregate and non-aggregate functionality, Phoenix has evolved into an OLTP and OLAP (Online Analytical Processing) database. This makes it a compelling choice for organizations looking to combine real-time data processing with complex analytical querying in a single, unified system. Phoenix supports several variable-length data types:
>> Read More

JDK 17 Memory Bloat in Containers: A Post-Mortem (Tue, 02 Dec 2025)
When engineering teams modernize Java applications, the shift from JDK 8 to newer Long-Term Support (LTS) versions, such as JDK 11, 17, and soon 21, might seem straightforward at first. Since Java maintains backward compatibility, it's easy to assume that the runtime behavior will remain largely unchanged. However, that's far from reality. In 2025, our team completed a major modernization initiative to migrate all of our Java microservices from JDK 8 to JDK 17. The development and QA phases went smoothly, with no major issues arising. But within hours of deploying to production, we faced a complete system breakdown.
>> Read More

Architecting Cloud Data Migration From Legacy Warehouses (Tue, 02 Dec 2025)
The Legacy Challenge in Enterprise Data For decades, enterprise data platforms were built on Teradata, Oracle, and other legacy systems. They were once the backbone of analytics, providing reliability and scale, but over time, they became rigid, costly, and difficult to evolve. Today, many of these platforms hold petabytes of data, support thousands of reports, and sit at the center of hundreds of dependent processes. What was once an enabler has become a bottleneck. The challenge is not just technology. Over the years, enterprises accumulate thousands of stored procedures, ETL pipelines, and reporting scripts embedded into these systems. Business rules and definitions are often hard-coded into SQL, reporting layers, or application logic. Migration to the cloud cannot be treated as a simple copy-and-paste job. Without a deliberate strategy, companies risk recreating the inefficiencies and inconsistencies of the past on a modern platform.
>> Read More

DevOps Cafe Podcast

DevOps Cafe Ep 79 - Guests: Joseph Jacks and Ben Kehoe (Mon, 13 Aug 2018)
Triggered by Google Next 2018, John and Damon chat with Joseph Jacks (stealth startup) and Ben Kehoe (iRobot) about their public disagreements — and agreements — about Kubernetes and Serverless. 
>> Read More

DevOps Cafe Ep 78 - Guest: J. Paul Reed (Mon, 23 Jul 2018)
John and Damon chat with J.Paul Reed (Release Engineering Approaches) about the field of Systems Safety and Human Factors that studies why accidents happen and how to minimize the occurrence and impact. Show notes at http://devopscafe.org
>> Read More

DevOps Cafe Ep. 77 - Damon interviews John (Wed, 20 Jun 2018)
A new season of DevOps Cafe is here. The topic of this episode is "DevSecOps." Damon interviews John about what this term means, why it matters now, and the overall state of security.  Show notes at http://devopscafe.org
>> Read More