Performance Resources

A lot of players on the market have built successful MapReduce workflows to daily process terabytes of historical data. But who wants to wait 24h to get updated analytics?

November 3, 2016

by Taras Matyashovskyy

· 75,129 Views · 30 Likes

Divide and Conquer: High Scalability With MongoDB Sharding

MongoDB handles horizontal scaling via sharding. Take a look at the different sharding methods you can use and how to make them work.

November 1, 2016

by Eugen Hoble

· 36,595 Views · 3 Likes

Monitoring OS Metrics for Amazon RDS with Grafana

This article describes how to visualize and monitor OS metrics for Amazon RDS instances using Grafana.

October 31, 2016

by Roman Vynar

· 8,835 Views

How to Detect if a User Is Idle

In this article, look at how to detect if a user is active on a Windows machine in order to help deliver notifications more effectively. Read on to find out more.

October 28, 2016

by Romiko Derbynew

· 8,673 Views · 2 Likes

Headless Execution of Selenium Tests in Jenkins

In this article, you'll learn all about running Selenium tests in “headless” mode, i.e., when no browser window is being displayed.

October 27, 2016

by Dmitri Tikhanski

· 22,839 Views · 1 Like

Inside the Apache Solr JSON Facet API

Solr 5 includes a re-written faceted search and analytics module with a structured JSON API to control the faceting and analytics commands. Here’s how it works.

October 27, 2016

by Yonik Seeley

· 7,668 Views · 2 Likes

How to Build and Execute Performance Tests Before Black Friday and Cyber Monday

Have you already started load testing for Black Friday? If not, don’t worry. There is still enough time to discover bottlenecks and fix them.

October 21, 2016

by Noga Cohen

· 5,579 Views · 2 Likes

NGINX Plus as a Cloud Load Balancer for OpenStack

We discuss how NGINX Plus provides advanced load balancing for applications you deploy on OpenStack.

October 21, 2016

by Michael Pleshakov

· 5,476 Views · 1 Like

Amazon ECS Log Analysis (Part 1)

Learn how to use Logz.io's ELK Stack to tackle the challenge of logging your ECS. See how you can mold and shape that data into dashboards and more.

October 19, 2016

by Daniel Berman

· 8,873 Views · 2 Likes

Automated Acceptance Testing for Mainframe With Cucumber and Jagacy

Selenium doesn't automate mainframe green screens. However, there are tools available that can be used to automate mainframe green screen interaction.

October 18, 2016

by Unmesh Gundecha

· 41,134 Views · 6 Likes

Convert HAProxy Statistics to a Python Dictionary

HAProxy provides both a GUI and a UNIX socket file. Through them, we can explore lots of critical info, especially HAProxy Statistics.

October 12, 2016

by Denny Zhang

· 5,928 Views · 1 Like

Hello World With JBoss Modules

There aren't a lot of examples of JBoss Modules out there, so let's create a simple Hello World program.

October 11, 2016

by Anton Arhipov

· 20,842 Views · 15 Likes

Understanding Retry Pattern With Exponential Back-Off and Circuit Breaker Pattern

Continuing reading for an in-depth discussion about the retry design pattern and its relation to the circuit breaker pattern.

October 10, 2016

by Rahul Rajat Singh

· 178,341 Views · 34 Likes

How to Create Hyper-V Images With Packer

In this posts, Matt Wrock will discuss how you can use Taliesin Sisson's PR #2576 in order to build Hyper-V images with Hyper-V.

October 6, 2016

by Matt Wrock

· 10,680 Views · 2 Likes

Spring Cloud Netflix: Load Balancer with Ribbon/Feign

The idea in this post is to show some concepts about load balancing, Ribbon and Feign, and step by step process for working with Ribbon and Feign.

September 29, 2016

by Rafael Salerno

· 113,206 Views · 23 Likes

Linux Zombie Processes [comic]

The more you think about it, the more a monolithic kernel seems just like a nuclear family.

September 9, 2016

by Daniel Stori

CORE

· 19,892 Views · 27 Likes

The Great Feature of Vagrant: Multi-Machine Management

How to utilize Vagrant's ability to improve VirtualBox by managing and repairing your virtual machines.

September 8, 2016

by Rafael Salerno

· 6,628 Views · 3 Likes

How Netflix's Circuit Breaker Works

See how Netflix's microservices-oriented circuit breaker works to prevent cascade failures and other problems.

September 7, 2016

by Rafael Salerno

· 46,301 Views · 22 Likes

Advanced Load Testing Scenarios with JMeter (Part 4): Stepping Thread Group and Concurrency Thread Group

In this final blog post in this JMeter series, learn how Stepping Thread Groups and Concurrency Thread Groups can determine how many users your system can handle.

August 29, 2016

by Noga Cohen

· 20,411 Views · 3 Likes

Advanced Load Testing Scenarios With JMeter (Part 3): Top 4 Timers

In part three of this series, see which four timers work well with JMeter for better control during your load testing.

August 27, 2016

by Noga Cohen

· 8,989 Views · 3 Likes

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