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Tag: keepalive connections

Troubleshooting Application Performance and Slow TCP Connections with NGINX Amplify

In this article I’m sharing an example of how to use NGINX Amplify as a visualization and reporting tool for benchmarking application performance. The primary focus is measuring the effect on performance of keepalive connections. As you’ll see at the conclusion, we found that we can double performance in a realistic testing scenario by using TCP…

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Overcoming Ephemeral Port Exhaustion in NGINX and NGINX Plus

NGINX and NGINX Plus are extremely powerful HTTP, TCP, and UDP load balancers. They are very efficient at proxying large bursts of requests and maintaining a large number of concurrent connections. But these characteristics make NGINX and NGINX Plus particularly subject to ephemeral port exhaustion – a condition where new connections cannot be created because the OS has…

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10 Tips for 10x Application Performance

Improving web application performance is more critical than ever. The share of economic activity that's online is growing; more than 5% of the developed world’s economy is now on the Internet (see Resources for Internet Statistics below). And our always‑on, hyper‑connected modern world means that user expectations are higher than ever. If your site does not…

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Announcing NGINX Plus Professional Services Packages

Since NGINX, Inc. was founded in 2011, our Professional Services team has helped some of the busiest websites in the world install, configure, and tune NGINX Plus. Now we’re introducing Professional Services packages that feature the types of service engagements our customers request most, so you can get the expert advice and assistance you need even faster.

And when we say expert, we mean it. The Professional Services team works directly with the developers who write and maintain NGINX and NGINX Plus. You get access to engineers who specialize in total application delivery, including load balancing, content caching, media streaming, and web serving.

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High Availability in NGINX Plus R6

It’s no secret that in today’s always‑on, always‑connected society, users expect your sites and apps to be accessible 24x7. This is where NGINX and NGINX Plus have always helped you shine. One of the key benefits of deploying NGINX Plus as a reverse proxy and load balancer for your application servers is increased application availability and reliability,…

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Building a Great App Is Just the Beginning; How Do You Deliver It at Scale?

Today’s businesses face disruption and opportunity on a scale we have never seen before. As developers and technology professionals, we find ourselves at the center of this storm. What sets top development teams apart from the rest is the ability to innovate and adapt, to build and deliver extraordinary new products and experiences faster than…

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Load Balancing with NGINX and NGINX Plus, Part 2

In Load Balancing with NGINX and NGINX Plus, Part 1, we set up a simple HTTP proxy to load balance traffic across several web servers. In this article, we'll look at additional features, some of them available in NGINX Plus: performance optimization with keepalives, health checks, session persistence, redirects, and content rewriting. For details of the load‑balancing features in NGINX and…

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HTTP Keepalive Connections and Web Performance

Have you ever benchmarked a server in the lab and then deployed it for real traffic, only to find that it can’t achieve anything close to the benchmark performance? CPU utilization is low and there are plenty of free resources, but clients complain of slow response times and you can’t figure out how to get better…

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