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

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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

How It Works: BULK INSERT (BCP) TDS Traffic

SQL Server According to Bob

Yesterday I had a discussion with a customer and realized that the BCP, TDS pattern could use a bit of documentation. Customer Scenario/Question: I am using BCP.exe to import a large data set. BCP.exe takes 15 minutes to complete but I only see a few seconds for the BULK INSERT command when monitoring dm_exec_requests. What is taking so long if the BULK INSERT is only showing a few seconds in dm_exec_requests? The customer was correct in her observation.

Log4j Bug — Slows Down Your Application


This application was slowing down sometimes during high traffic volume periods; sometimes during low traffic periods as well. Learn how to troubleshoot your application. Recently we were troubleshooting a popular SaaS application. This application was slowing down intermittently.

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.

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?

Why Test Your Web-Apps on Older Versions of Chrome?


Currently, global Internet traffic counts to a whopping 4.3 Testing on Google Chrome is necessary for any app-designer. Internet usage has constantly exploded in the past decade and continues to grow every single day. billion users.

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.

Easily understand the detection rules of your RUM applications


By investigating these questions, we distilled these two pain points: Following definition of application detection rules, some users don’t see traffic from the correct URLs in the corresponding Dynatrace applications (i.e., Dynatrace news.

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.

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.

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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Innovate. Collaborate. Deliver. Our digital hub is live


As the world socially distances, we are seeing significant increases in website traffic as people turn to their phones and devices, to connect with loved ones, buy online, distance learn, work remotely, and continuously keep up with the news. . Dynatrace news.

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.

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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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.

Get quick alerts and avoid false positives with the new baseline setting


This means that Dynatrace alerts more quickly when an error spike occurs in a high-traffic service (compared to a low-traffic service where statistical confidence is lower). Dynatrace news.

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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It’s time to migrate from NAM to Dynatrace


All-traffic monitoring, analysis on demand—network performance management started to grow as an independent engineering discipline. This approach works as long as application traffic can be decrypted. Dynatrace news.

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.

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.

The Best Way to Host MongoDB on DigitalOcean


While adequate for low-traffic applications, small databases, and dev/test environments, we recommend against leveraging shared clusters for your MongoDB production deployments. This is typically more than adequate for production deployments and high-traffic applications, and starts at $60/month for 8GB of memory, 2 vCPUs, 4TB of transfer and 25GB of SSD disk space. MongoDB is the #3 open source database and the #1 NoSQL database in the world.

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. (

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.

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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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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DBLog: A Generic Change-Data-Capture Framework

The Netflix TechBlog

Nonetheless, we found a number of limitations that could not satisfy our requirements e.g. stalling the processing of log events until a dump is complete, missing ability to trigger dumps on demand, or implementations that block write traffic by using table locks.

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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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.

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.

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.

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?

Watching you watch: the tracking system of over-the-top TV streaming devices

The Morning Paper

The top 1000 channels from each service are analysed using a custom-built crawling engine, and traffic is intercepted where possible using mitmproxy. Where possible the authors use mitmproxy to intercept traffic from the devices.

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.

DBLog: A Generic Change-Data-Capture Framework

The Netflix TechBlog

Nonetheless, we found a number of limitations that could not satisfy our requirements e.g. stalling the processing of log events until a dump is complete, missing ability to trigger dumps on demand, or implementations that block write traffic by using table locks.

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.

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.

The Surprising Effectiveness of Non-Overlapping, Sensitivity-Based Performance Models

John McCalpin

Here I assumed a particular analytical function for the amount of memory traffic as a function of cache size to scale the bandwidth time.

POTS: protective optimization technologies

The Morning Paper

For example, traffic routing apps such as Waze can end up worsening congestion for all. The authors use route planning software to figure out local road changes (specifically, what slowdown in local traffic) is required to prevent Waze from sending traffic through the town.

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.