Tag: Java
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Creating TLS certificates using Kubernetes API
Creating TLS certificates using Kubernetes API The purpose of this post is to explain the need of adding encryption to the network communications between containers, and how to achieve it at application level, creating Transport Layer Security (TLS) certificates with the already provided Kubernetes APIs. Is it necessary to add encryption between containers? When running
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Performance Analysis of a CPU-Intensive Workload in Apache Spark
Performance Analysis of a CPU-Intensive Workload in Apache Spark Topic: This post is about techniques and tools for measuring and understanding CPU-bound and memory-bound workloads in Apache Spark. You will find examples applied to studying a simple workload consisting of reading Apache Parquet files into a Spark DataFrame. Why are the topics discussed here relevant
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Starting up with the Oracle Java Cloud Services.
Starting up with the Oracle Java Cloud Services. Hello everyone, In this entry I would like to share my experiences using Oracle Java Cloud Service, especially securing the application environment. I will show you some issues that I encountered during standard process of setting up environment. I will also explain some basic concepts that are
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Java web application based on OAuth2
Java web application based on OAuth2 Hello, Last week I've investigated how does OAuth2 protocol works and developed a Proof of Concept (PoC) in Java. In this post I would like to show you how effortlessly develop simple client-server application using OAuth 2.0 standard for authorization of protected resources placed on a server. Before we
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Hadoop performance troubleshooting with stack tracing, an introduction.
Hadoop performance troubleshooting with stack tracing, an introduction. Topic: This post is about profiling and performance tuning of distributed workloads and in particular Hadoop applications. You will learn of a profiler application we have developed and how it has successfully been applied to tuning Sqoop to improve the throughput of data transfer from Oracle to
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Oracle Weblogic Maven Plugin Quickstart
Oracle Weblogic Maven Plugin Quickstart If you have worked with maven in an enterprise environment probably you have followed recipes like this one (btw thanks Mykong!) in order to integrate Oracle libraries in your projects. But nowadays you can forget about all these tricks because since the beginning of the year the Oracle Maven repository
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Java SOAP client with certificate authentication
Java SOAP client with certificate authentication Maybe you are wondering why a java entry in a databases blog? The answer is simple, at CERN, the Infrastucture and Middleware Services section (aka IMS) is part of the Database Services , and, among many other things, we take care of the Java application servers for our users.