This article describes how to configure MongoDB’s WiredTiger memory cache in Red Hat Mobile Application Platform (RHMAP) to prevent high-usage memory issues and Nagios alerts. If the WiredTiger cache consumes all the memory available for a container, memory issues and Nagios alerts will occur.
The WiredTiger storage engine is the default storage engine starting in MongoDB version 3.2. It uses MultiVersion Concurrency Control (MVCC) architecture for write operations in order to allow multiple different modifications to the same document at the same time.
WiredTiger also caches data and creates checkpoints to give you the ability to recover anytime it’s necessary. For example, if a MongoDB image deployed in a container fails, it is useful to recover the data that was not persisted. Additionally, WiredTiger can recover un-checkpointed data with its journal files. See the journal documentation and snapshots and checkpoint documentation for more information.
Continue reading “Configuring the MongoDB WiredTiger memory cache for RHMAP”
At Red Hat Mobile we understand the need for a flexible product that enables our customers to integrate with the tools they need to build their current and future applications. Our position as a leading contributor to the Kubernetes project ensures that the Red Hat OpenShift Container Platform offers this tremendous flexibility to customers and end users.
Red Hat Mobile also supports highly flexible integrations to a range of 3rd party services and products. In this article, we’ll demonstrate how Red Hat Mobile v4 and OpenShift v3 enable customers to rapidly deploy and secure their mobile applications by integrating with a third party product provided by Intercede. We’ll be using Intercede’s RapID product to enable two-way TLS (often referred to as Client Certificate Authentication or CCA) for our mobile application.
Continue reading “Integrating Intercede RapID with Red Hat Mobile and OpenShift”
In this Blog post entry I will try to cover, how to use Red Hat Mobile Application Platform with private npm modules from registry.npmjs.org.
Continue reading “Use Private NPM modules with RHMAP”
I was lucky enough to speak at JavaOne 2017 last month. It was my first time there, as both an attendee and a speaker.
I must say I was very much impressed. In particular, during the keynotes, I was happy to see how Java is moving forward, keeping up with the fast innovation pace in the cloud area.
Continue reading “Server-side Kotlin with Eclipse Vert.x at JavaOne”
JBoss Tools 4.5 and Red Hat JBoss Developer Studio 11.0 for Eclipse Oxygen are here waiting for you. Check it out!
Continue reading “Announcing Red Hat Developer Studio 11.0.0.GA and JBoss Tools 4.5.0.Final for Eclipse Oxygen”
From hobbyist SoC devices such as the ubiquitous Raspberry Pi to a complete domination of the mobile device market, ARM processors have proven the value of the architecture. It is easy to see why ARM processors were able to explode in this market, given that they are able to pack quite a bit of performance into a rather small physical space. Take for instance Qualcomm’s Snapdragon 400 processor, which is used in many products including the Huawei Watch This processor provides a dual core, fast, performance using 14-nanometer design. This makes it small enough to fit on your wrist, and it is efficient enough to limit power consumption enough to run on a battery, which can also fit on your wrist. The usefulness in these spheres of ARM processors is well known, and the fact that RHEL seems to have little interest in the mobile, embedded device, or hobbyist market is also fairly well known. What should be of interest to Red Hat developers, though, is the potential for the Enterprise Server market that ARM processors seem to be displaying. While x86 devices likely are to remain in place for workstations and laptops, the low power usage and small physical design of ARM processors make it interesting to the server market, where power consumption and space are also limitations.
Continue reading “After Years of Linux on ARM, when is the Year of Red Hat on ARM servers?”
One of the biggest challenges for developers to build mobile applications is data synchronization. It’s the foundation for many different types of mobile applications, but it’s very complicated and very hard to implement.
Continue reading “Scaling Sync”
JBoss Tools 4.4.4 and Red Hat JBoss Developer Studio 10.4 for Eclipse Neon.3 are here waiting for you. Check it out!
Continue reading “JBoss Tools and Red Hat Developer Studio Maintenance Release for Eclipse Neon.3”
This post was originally published on redhat.com.
Part 1: Adding Unit Tests to Native iOS Red Hat Mobile Application Platform Application
A robust and agile mobile application development environment requires continuous integration and delivery. It also requires an integrated and automated unit testing process that helps bring applications to market successfully. This two-part series details my work done at the Red Hat Open Innovation Labs and as a Mobile Technical Account Manager to capture these mobile innovations in a useful, repeatable way. In part one of this two-part series, I break down the steps to create and unit test a native iOS application using Red Hat Mobile Application Platform. In part two, I’ll show how Jenkins can be used to automate continuous integration and unit testing of that Mobile app. If you would like to try out our Red Hat Mobile Application Platform product please visit our Red Hat Mobile Application Platform site.
Continue reading “A step-by-step tutorial for continuous integration with Jenkins for a Red Hat Mobile Native iOS application”