Taiji: managing global user traffic for large-scale Internet services at the edge

The Morning Paper

Taiji: managing global user traffic for large-scale internet services at the edge Xu et al., The runtime component takes as input data on the operational state of the infrastructure, and measurement data such as edge traffic volumes and edge-to-datacenter latency.

Are Your Business Applications Dealing with a Traffic Jam? Get Unstuck Today!


The post Are Your Business Applications Dealing with a Traffic Jam? With Mobile World Congress (MWC) 2019 just behind us it is clear that most, if not all conversation were about Read More. Get Unstuck Today! appeared first on Apica. API Cloud Monitoring

Evolving Regional Evacuation

The Netflix TechBlog

In the event of an isolated failure we first pre-scale microservices in the healthy regions after which we can shift traffic away from the failing one. So, if we evacuate South American traffic to North America, demand for CE and Android DRM won’t grow uniformly.

How to get the most value out of Session Replay: Use cases and examples


Session Replay features a number of settings, controls, and API calls that allow you to selectively record only those user sessions that are relevant to your business case: The Cost and traffic control setting, which allows you to decide the percentage of sessions you want to record.

Why Load Balancing Is Important for Web Servers?


In the web hosting service industry, it is commonly used for balancing the HTTP traffic across multiple servers which act together as a web front-end. A Load Balancer allows the users to distribute the traffic to a single IP across several servers by using a set of different protocols. In case if one of the server nodes fails, the traffic can be programmatically distributed to other nodes without any service interruption. What is Load Balancing?

5 Ways to Improve Video Performance


Video is the most powerful form of media used online today—according to Cisco’s global Internet traffic projections , video content will account for 82 percent of all IP traffic (both business and consumer) by 2022. The days of a predominantly text-based Internet are long gone. Visual content like infographics, images, animations, and videos attract website visitors because people find this type of content more engaging and interesting.

Monitor Your App’s Health With Spring Boot Actuator


Ever wanted to see the precise HTTP traffic going through your Spring Boot API? Vegetables won't keep your app healthy. With the Spring Boot Actuator and some code, you can! Spring Boot Actuator manages and monitors the health of your app using HTTP endpoints.

TCP: Out of Memory — Consider Tuning TCP_Mem


All other application instances were handling the traffic properly. What happens when you're out of memory? You may also like: Java Out of Memory Heap Analysis. Recently we experienced an interesting production problem.

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Keeping DevOps cool in a heated environment


Dynatrace’s AI engine, Davis automatically identified high traffic surges on the county website as the fire took hold. Dynatrace was able to tell the county you have high traffic on your site due to an influx of residents specifically seeking information on the Woolsey Fire.

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PPC Optimization: Optimizing Smart Campaigns

Website Optimization

Semi-automated and self optimizing Smart campaigns are designed to drive leads and traffic with minimal setup and maintenance (see Figure 1). In July 2018 Google rolled out Smart Campaigns in Google Ads in the US.

Redis vs Memcached

Software Architecture

Memcached is very good at handling high traffic websites. Redis can not handle heavy traffic on read/write. Memcached is in-memory key value store whereas Redis is in-memory data structures store. Memcached supports only string data type which is ideal for storing read-only data.

The convoy phenomenon

The Morning Paper

The high-traffic, lock-protected resources in System R are the buffer pool, recovery log, and system entry/exit. Here are their respective stats: If a process P1 goes into a wait state while it holds a high traffic lock L (e.g. Never page fault while a high traffic lock is held.

5 Things Your Boss Needs to Know About Your Website


Is the blog drawing traffic? Which pages are receiving the most traffic? You may think the answers are obvious, and the most obvious questions include: How many people are hitting our website? How many site visitors are converting?

Optimizing Application Performance and User Experience With NETSCOUT for Azure


As a result, the number of servers and the quantity of traffic have been exploding exponentially. In the era of Digital Transformation (DX) the IT landscape has expanded to environments that rely extensively on virtualization, hyper-converged infrastructure (HCI), and cloud computing.

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50 ways to leak your data: an exploration of apps’ circumvention of the Android permissions system

The Morning Paper

Network traffic is also monitored, included all TLS-secured traffic where the developers hadn’t used certificate pinning (i.e., Once the app has run in the rig for a while, the network traffic generated by the app is inspected to uncover leaked information.

Dynatrace Managed feature update, version 1.176


No more need to disable OneAgent traffic beforehand. Dynatrace news. New features and enhancements. Leverage the power of Davis AI with custom time-series events for your specific use cases (Preview). More flexible SAML configuration.

Managing High Availability in PostgreSQL – Part III: Patroni


Corosync traffic was blocked on the master server. Corosync traffic was blocked on the standby server. In our previous blog posts, we discussed the capabilities and functioning of PostgreSQL Automatic Failover (PAF) by Cluster Labs and Replication Manager (repmgr) by 2ndQuadrant.

How to Optimize Website Speed for Black Friday 2017


Is your website prepared for record breaking traffic and sales? Halloween is almost here and before you know it, it will be Black Friday and then, Cyber Monday. These consumer “holidays” bring about the race for shoppers to buy all of the coveted items on.

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Fostering a Web Performance Culture

José M. Pérez

When they dug into the data, they found that the reason load times had increased was that they got a lot more traffic from Africa after doing the optimizations. Web Performance is not only about understanding what makes a site fast.

Auth0 Architecture: Running In Multiple Cloud Providers And Regions

High Scalability

The number of services that compose our product in order to scale our organization and handle the increases in traffic went from under 10 to over 30 services.

Stuff The Internet Says On Scalability For September 21st, 2018

High Scalability

Aria Bracci : Using a previously established, peer-reviewed technique, the team conducted more than half a million data traffic tests across 161 countries. Wake up! It's HighScalability time: A swarm of 300 autonomous burner drones take flight like sparkle from a fairy godmother's wand. (

Google Analytics and Dynatrace – Why you need both


I selfishly look at my blog posts (like this one) and see whether LinkedIn, or Twitter, drove more traffic! If we see an issue, or more importantly if Davis (The Dynatrace AI engine) picks up a reduction in traffic or an increase in errors, we are quickly able to pinpoint why and fix it.

The Best In Performance Interview Series – Episode #4: Recap with Rich Howard


He goes into detail covering the steps that need to be taken to ensure that a website or application is prepared for an influx of traffic, from scoping and testing to setting expectations and creating a contingency plan.

OneAgent & ActiveGate release notes, version 1.175


release includes automatic configuration of Istio for enabling egress traffic to Dynatrace clusters. The newly introduced flag enableIstio (default false ) allows you to let the OneAgent Operator manage the Istio service entries for OneAgent egress traffic. For browser monitors, proxy support for ActiveGate-resource proxy has been extended to proxy the s3 traffic necessary to store captured screenshot files. Dynatrace news. OneAgent.

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5G Will Definitely Make the Web Slower, Maybe

CSS - Tricks

When I read this, I thought of how adding extra lanes to highways actually causes more traffic, which is equally weird and counterintuitive. Scott Jehl has written this wonderful piece about how 5G is on the horizon and how it could cause problems for users.

Performance Vs Scalability

Professor Beekums

Scalability is being able to handle large amounts of users/data/traffic. One thing that tripped me up early on in my career was the difference between performance and scalability. At first I thought they were exactly the same.

Case Study: Pokémon GO on Google Cloud Load Balancing

High Scalability

Prior to launch, they load-tested their software stack to process up to 5x their most optimistic traffic estimates. As shown in Figure 11-5, when it launched, Pokémon GO used Google’s regional Network Load Balancer (NLB) to load-balance ingress traffic across a Kubernetes cluster.

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Achieve resilient cloud applications through managed DNS

O'Reilly Software

Harnessing DNS for traffic steering, load balancing, and intelligent response. In the case of traffic management, service endpoints can be monitored through continual health checks that verify that the expected resources are available and functioning.

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Faster reaction time to service outages with Davis AI


Service-outage detection begins with comparing the learned load baseline with the current levels of incoming service traffic. Dynatrace news.

Top Redis Use Cases by Core Data Structure Types


Queues: Any application that deals with traffic congestion, messaging, data gathering, job management, or packer routing should consider a Redis Queue , as this can help you manage your queue size by rate of arrival and departure for resource distribution. Redis , short for Remote Dictionary Server, is a BSD-licensed, open-source in-memory key-value data structure store written in C language by Salvatore Sanfillipo and was first released on May 10, 2009.

Faster reaction time to service outages with Davis AI


Service-outage detection begins with comparing the learned load baseline with the current levels of incoming service traffic. Dynatrace news.

PyMongo Tutorial: Testing MongoDB Failover in Your Python App


It is also recommended that SSL connections be enabled to encrypt the client-database traffic. Python is a powerful and flexible programming language used by millions of developers around the world to build their applications. It comes as no surprise that Python developers commonly leverage MongoDB hosting , the most popular NoSQL database , for their deployments due to its flexible nature and lack of schema requirements. So, what’s the best way to use MongoDB with Python?

Stuff The Internet Says On Scalability For October 5th, 2018

High Scalability

Hey, wake up! It's HighScalability time: Halloween is early. Do you know what's hiding inside your computer? Probably not. bloomberg ). Do you like this sort of Stuff? Please support me on Patreon. I'd really appreciate it. Know anyone looking for a simple book explaining the cloud?

How Netflix microservices tackle dataset pub-sub

The Netflix TechBlog

This is to handle the large volume of poll requests coming from subscribed clients without passing on the traffic to the Cassandra cluster.

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SpaceX Spending $10 Billion to Make the Internet 20ms Faster


– Yahoo saw a 9% increase in traffic to every 400 milliseconds of webpage speed improvement. – Google loses 20% of their traffic for every additional 100 milliseconds it takes a page to load. Elon Musk’s need for speed.

Uber’s Big Data Platform: 100+ Petabytes with Minute Latency

Uber Engineering

To accomplish this, Uber relies heavily on making data-driven decisions at every level, from forecasting rider demand during high traffic events to identifying and addressing bottlenecks … The post Uber’s Big Data Platform: 100+ Petabytes with Minute Latency appeared first on Uber Engineering Blog. Uber is committed to delivering safer and more reliable transportation across our global markets.

Predictive CPU isolation of containers at Netflix

The Netflix TechBlog

One specific Titus middleware service serving the Netflix streaming service saw a capacity reduction of 13% (a decrease of more than 1000 containers) needed at peak traffic to serve the same load with the required P99 latency SLA!

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Stuff The Internet Says On Scalability For March 8th, 2019

High Scalability

Wake up! It's HighScalability time: A highly simplified diagram of serverless. ( @jbesw ). Do you like this sort of Stuff? I'd greatly appreciate your support on Patreon. Know anyone who needs cloud? I wrote Explain the Cloud Like I'm 10 just for them. It has 40 mostly 5 star reviews.

Delta: A Data Synchronization and Enrichment Platform

The Netflix TechBlog

No need to acquire locks on tables, which is essential to ensure that the write traffic on the database is never blocked by our service.

Python at Netflix

The Netflix TechBlog

Demand Engineering Demand Engineering is responsible for Regional Failovers , Traffic Distribution, Capacity Operations and Fleet Efficiency of the Netflix cloud.

Troubleshooting Knative Prometheus GC Issues with Dynatrace


based sample service in a staging and production namespace, a Jenkins instance and execute some moderate load to “simulate constant production traffic”. Dynatrace news.

Getting Started with LoadView On-Demand Performance Testing


Let’s face it - the ideal load test emulates real world traffic, yet most load testing software doesn't come close. A series of GET requests from an in-house server can't possibly replicate what actually happens when a website sees a sudden increase in users from all over the world.

Dynatrace Managed release notes version 1.178


Improved cluster resilience for high user traffic volume. Since the introduction of Adaptive load reduction with Dynatrace traffic management in version 1.156 we ensure that Dynatrace scales in high-traffic environments and that your network bandwidth is used efficiently.