Systems | Development | Analytics | API | Testing

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Disk and Datanode Size in HDFS

This blog discusses answers to questions like what is the right disk size in datanode and what is the right capacity for a datanode. A few of our customers have asked us about using dense storage nodes. It is certainly possible to use dense nodes for archival storage because IO bandwidth requirements are usually lower for cold data. However the decision to use denser nodes for hot data must be evaluated carefully as it can have an impact on the performance of the cluster.

Fresh Features: first-rate filters

Filtering is an underappreciated feature of business intelligence and analytics. Yet filters are critical to data analysis. Filters will probably be the primary method, of all the possible interaction types, that end users utilize. Welcome to part 3 of Yellowfin 9 Fresh Features. If you missed part 2, check out the enhancements to Yellowfin's automated data discovery - Signals. Yellowfin has a rich filter functionality that isn't available in some of the other leading analytics platforms.

The Different Software Testing Types Explained

According to IEEE Std 829-1998, Software Testing is defined as “the process of analyzing a software item to detect the differences between existing and required conditions (i.e. defects) and evaluating the features of the software items.” With the advent of new technologies and new software being released every day, software testing is gaining more strength and accolades. Today, testing is imperative and there is no way we can skip it.

[Online Meetup] Mocking APIs with Kong and API Fortress

In this call API Fortress talked about mocking APIs with Kong and API Fortress. You might want to mock APIs to build tests against them before the services are ready, to save money during service development, or to keep your development environments isolated. Learn how API Fortress uses Kong in their API mocking technology. Plus, see a demo.

Katalon and Perfecto Collaborate to Deliver Seamless Continuous Testing

We are excited to introduce our newest collaboration with Perfecto — a smart continuous testing platform for web and mobile applications. This brand new integration between Katalon Studio and Perfecto offers the ability to execute web and mobile test scripts against devices or browsers in the Perfecto Cloud and analyze test results from a unified dashboard.

.NET Performance Optimization: Everything You Need To Know

It’s Friday afternoon, the majority of the development staff has already packed up and headed home for the weekend, but you remain to see the latest hotfix through to production. To your dismay, immediately after deployment, queues start backing up and you begin to get alerts from your monitoring system. Something has been broken and all evidence points to an application performance bottleneck.