The Netflix TechBlog

NOVEMBER 9, 2022

A quick canary test was free of errors and showed lower latency, which is expected given that our standard canary setup routes an equal amount of traffic to both the baseline running on 4xl and the canary on 12xl. What’s worse, average latency degraded by more than 50%, with both CPU and latency patterns becoming more “choppy.”

Hardware 363

Hardware Cache Performance Latency 363

Dynatrace

MARCH 22, 2021

To keep infrastructure and bare metal servers running smoothly, a long list of additional devices are used, such as UPS devices, rack cases that provide their own cooling, power sources, and other measures that are designed to prevent failures. Events and alerts. Model topological relations and dependencies. SNMP observability.

Metrics 245

Metrics Network Infrastructure Traffic 245

Smashing Magazine

DECEMBER 17, 2021

Designing Human-Machine Interfaces For Vehicles Of The Future. Designing Human-Machine Interfaces For Vehicles Of The Future. No matter what HMI we design, we need to allow users to take advantage of all that a system has to offer. Car HMI design is a relatively new field with its specifics that you need to be aware of.

Design 107

Design Entertainment Mobile Automotive 107

Dynatrace

OCTOBER 9, 2020

In such circumstances, it’s challenging to investigate the reasons for unexpected behavior or traffic between pods. The ongoing and continuous tracking of network and service-level communication of pods in Kubernetes enables Dynatrace to easily discover any unintended egress traffic (i.e., Have ideas for further improvements?

Design 102

Design Google Architecture Traffic 102

The Netflix TechBlog

AUGUST 30, 2021

In the Device Management Platform, this is achieved by having device updates be event-sourced through the control plane to the cloud so that NTS will always have the most up-to-date information about the devices available for testing. The RAE is configured to be effectively a router that devices under test (DUTs) are connected to.

Latency 213

Latency Traffic Transportation Hardware 213

Dynatrace

SEPTEMBER 7, 2022

VPC Flow Logs is an Amazon service that enables IT pros to capture information about the IP traffic that traverses network interfaces in a virtual private cloud, or VPC. By default, each record captures a network internet protocol (IP), a destination, and the source of the traffic flow that occurs within your environment.

Traffic 224

Traffic AWS Network Cloud 224

Dynatrace

MAY 17, 2023

The Dynatrace Site Reliability Guardian is designed for this practice; it allows development teams to define quality objectives in their code, which is validated throughout the delivery process before the code reaches production. The functionality is implemented via an automated workflow.

DevOps 195

DevOps Traffic Latency Best Practices 195

The Netflix TechBlog

NOVEMBER 3, 2022

With traffic growth, a single leader node handling all request volume started becoming overloaded. The path over which data travels from Titus Job Coordinator to a Titus Gateway cache can be described as a sequence of event queues with different processing speeds: A message generated by the event source may be buffered at any stage.

Cache 224

Cache Latency Traffic Systems 224

The Agile Manager

MARCH 31, 2021

Some have incorrectly referred to the incident and the aftermath as a “black swan” event. The disruption is not simply the result of a ship running aground and blocking traffic in a busy, narrow passageway. But the disruption to supply chains created by the beaching of the Ever Given is not a black swan event.

Transportation 52

Transportation Retail Traffic Efficiency 52

Dynatrace

APRIL 26, 2023

DPS offers you flexibility to scale-up deployments during peak traffic events or to provide extra observability during high-stakes moments. In designing DPS, we’ve created pricing that is transparent and fair. Beyond the cloud, hourly pricing is also great for traditional and hybrid environments.

Cloud 210

Cloud Best Practices Traffic Infrastructure 210

Dynatrace

OCTOBER 16, 2023

By unifying all relevant events in Grail, teams could identify suspicious activity, then have the platform automatically trigger the steps to analyze those activities. By analyzing the data in Dynatrace Notebooks, the team discovered, “There is too much cross-availability-zone traffic,” Greifeneder recalled.

Innovation 206

Innovation DevOps Cloud Efficiency 206

The Netflix TechBlog

DECEMBER 17, 2019

In databases like MySQL and PostgreSQL, transaction logs are the source of CDC events. Some of DBLog’s features are: Processes captured log events in-order. Interleaves log with dump events, by taking dumps in chunks. No locks on tables are ever acquired, which prevent impacting write traffic on the source database.

Database 212

Database Traffic Transportation Open Source 212

The Netflix TechBlog

MARCH 7, 2024

Since its inception , Metaflow has been designed to provide a human-friendly API for building data and ML (and today AI) applications and deploying them in our production infrastructure frictionlessly. Explainer flow is event-triggered by an upstream flow, such Model A, B, C flows in the illustration.

Systems 226

Systems Media Cache Open Source 226

The Netflix TechBlog

DECEMBER 17, 2019

In databases like MySQL and PostgreSQL, transaction logs are the source of CDC events. Some of DBLog’s features are: Processes captured log events in-order. Interleaves log with dump events, by taking dumps in chunks. No locks on tables are ever acquired, which prevent impacting write traffic on the source database.

Database 197

Database Traffic Transportation Open Source 197

Percona

JUNE 22, 2023

Defining high availability In general terms, high availability refers to the continuous operation of a system with little to no interruption to end users in the event of hardware or software failures, power outages, or other disruptions. Load balancers can detect when a component is not responding and put traffic redirection in motion.

Availability 108

Availability Database Open Source Hardware 108

Smashing Magazine

NOVEMBER 5, 2021

The Value Of Concept Testing As Part Of Product Design. The Value Of Concept Testing As Part Of Product Design. UX design teams are passionate about our approach to solving problems and providing users with experiences that lead to their desired outcomes. UX teams should consider it a mandatory step in designing a product.

Design 98

Design Testing Education Processing 98

Dynatrace

NOVEMBER 24, 2020

As organizations plan, migrate, transform, and operate their workloads on AWS, it’s vital that they follow a consistent approach to evaluating both the on-premises architecture and the upcoming design for cloud-based architecture. AWS 5-pillars. Fully conceptualizing capacity requirements.

AWS 147

AWS Artificial Intelligence Best Practices Lambda 147

The Netflix TechBlog

OCTOBER 18, 2022

We started seeing signs of scale issues, like: Slowness during peak traffic moments like 12 AM UTC, leading to increased operational burden. At Netflix, the peak traffic load can be a few orders of magnitude higher than the average load. Hence, the system has to withstand bursts in traffic while still maintaining the SLO requirements.

Java 202

Java Scalability Traffic Architecture 202

The Netflix TechBlog

MAY 26, 2020

VPC Flow Logs VPC Flow Logs is an AWS feature that captures information about the IP traffic going to and from network interfaces in a VPC. By default, each record captures a network internet protocol (IP) traffic flow (characterized by a 5-tuple on a per network interface basis) that occurs within an aggregation interval.

Network 150

Network Tuning AWS Big Data 150

Percona

AUGUST 22, 2023

High availability refers to the continuous operation of a database system with little to no interruption to end users in the event of system failures, power outages, or other disruptions. Load balancing: Traffic is distributed across multiple servers to prevent any one component from becoming overloaded. What is fault tolerance?

Availability 79

Availability Hardware Open Source Database 79

Dynatrace

JUNE 25, 2020

Dynatrace Managed is intrinsically highly available as it stores three copies of all events, user sessions, and metrics across its cluster nodes. Minimized cross-data center network traffic. Reduce cross-region traffic for Log Monitoring and Synthetic Monitoring. Dynatrace news. Automatic recovery for outages for up to 72 hours.

Availability 253

Availability Hardware Latency Traffic 253

The Morning Paper

JUNE 25, 2019

Designing far memory data structures: think outside the box Aguilera et al., Therefore, if we want to make full use of one-sided far memory, we need to think carefully about the design of our data structures to make that access efficient. This makes it challenging to design effective far memory data structures. HotOS’19.

Design 80

Design Cache Hardware Scalability 80

InfoQ

JUNE 16, 2023

Datadog created a dedicated data ingestion architecture offering exactly-once semantics for their third-generation event store, Husky. The event-driven architecture (EDA) can accommodate bursts in traffic in the multi-tenant platform with reasonable ingestion latency and acceptable operational costs. By Rafal Gancarz

Architecture 55

Architecture Scalability Latency Traffic 55

The Netflix TechBlog

JANUARY 25, 2022

These data scientists design and execute tests to support learning agendas and contribute to decision making. The forums where these debates take place are broadly accessible, ensuring a diverse set of viewpoints provide feedback on test designs and results, and weigh in on decisions.

Education 238

Education Innovation Testing Programming 238

CSS Wizardry

MARCH 28, 2022

Plan in suitable buffer time for traffic issues, etc. In the unlikely event that you are using in , it’s probably something that you want to check on sooner rather than later—your scores are likely to change. Predictably, fading in our image over 500ms pushes our LCP event back by 500ms. Design modals and cookie banners etc.

Virtualization 330

Virtualization Google Metrics Testing 330

Dynatrace

NOVEMBER 22, 2021

EC2 is Amazon’s Infrastructure-as-a-service (IaaS) compute platform designed to handle any workload at scale. EC2 is ideally suited for large workloads with constant traffic. Lambda is Amazon’s event-driven, functions-as-a-service (FaaS) compute service that runs code when triggered for application and back-end services.

Best Practices 220

Best Practices AWS Monitoring Serverless 220

The Netflix TechBlog

OCTOBER 7, 2021

The challenge for clients is that each instance of the application runs on a Netflix member’s device and signals are derived from a firehose of events being sent by devices across the globe. In contrast, a server application runs on servers which are typically identical and a routing abstraction can serve sampled traffic to new versions.

Metrics 197

Metrics Mobile Testing Strategy 197

Dynatrace

APRIL 8, 2021

During a breakout session at Dynatrace’s Perform 2021 event, Senior Product Marketing Manager Logan Franey and Product Manager Dominik Punz shared mobile app monitoring best practices to maximize business outcomes. Most organizations have a grab bag of monitoring tools, each designed for a specific use case.

Mobile 170

Mobile Monitoring Analytics Google 170

Smashing Magazine

DECEMBER 7, 2023

Rather than pushing off INP until after it starts influencing the way we measure site performance, let’s take a few minutes to level up our understanding of what it is and why it’s designed to replace FID. It only looks at the delay of the event process. So, that’s why you’re not seeing INP or FID in your reports.

Traffic 95

Traffic Metrics Google Monitoring 95

IO River

NOVEMBER 15, 2023

In technical terms, network-level firewalls regulate access by blocking or permitting traffic based on predefined rules. They mainly focus on where data is coming from and where it's going.Application-level Firewalls (like WAF): These are like the security checks at the entrance of a special event or building.

Traffic 52

Traffic Network Logistics Architecture 52

Scalegrid

MARCH 28, 2024

Redis Data Types and Structures The design of Redis’s data structures emphasizes versatility. On the other hand, an append-only file ensures data safety by recording every write operation that modifies the dataset, allowing for complete data reconstruction in the event of a restart. Memcached’s primary strength lies in its simplicity.

Cache 130

Cache Storage Scalability Architecture 130

IO River

NOVEMBER 2, 2023

Today, 40% of the online traffic is made up of dynamic content, CDN also did their part of the effort to adopt this new reality. This is a scenario where CDN’s effectiveness is reduced, as it’s designed to handle static content rather than real-time dynamic content.‍CDNs There is no predefined moveset.Â

Cache 52

Cache Traffic Games Network 52

Strategic Tech

AUGUST 26, 2018

A trip to the supermarket can teach you a lot about designing software systems and shaping teams to build them… I was recently in need of some chocolate sauce. The Chocolate Sauce Heuristic for Software Design There are a few lessons about software development we can learn from this story, but I want to focus on design.

Design 40

Design Software Architecture Architecture Software 40

InfoQ

NOVEMBER 29, 2023

HubSpot adopted routing messages over multiple Kafka topics (called swimlanes) for the same producer to avoid the build-up in the consumer group lag and prioritize the processing of real-time traffic. By Rafal Gancarz

Processing 79

Processing Traffic Data Engineering Scalability 79

IO River

NOVEMBER 2, 2023

To ensure reliability, these contracts often include provisions for financial penalties imposed on vendors in the event of contract violations. The stakes are even higher during high-traffic periods such as Black Friday or Cyber Monday. The need for high availability becomes even more critical during peak travel seasons or events.

Availability 52

Availability Social Media Traffic Games 52

IO River

NOVEMBER 2, 2023

To ensure reliability, these contracts often include provisions for financial penalties imposed on vendors in the event of contract violations. The stakes are even higher during high-traffic periods such as Black Friday or Cyber Monday. The need for high availability becomes even more critical during peak travel seasons or events.

Availability 52

Availability Social Media Traffic Games 52

Scalegrid

DECEMBER 16, 2019

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 the most affordable option as the arbiter does not hold any data and costs less to deploy, but also offers 1 less node that can take over in a failover event.

Azure 187

Azure AWS Latency Database 187