The Netflix TechBlog

JUNE 14, 2023

The control group’s traffic utilized the legacy Falcor stack, while the experiment population leveraged the new GraphQL client and was directed to the GraphQL Shim. To determine customer impact, we could compare various metrics such as error rates, latencies, and time to render. How does it work?

Traffic 357

Traffic Latency Metrics Cache 357

The Netflix TechBlog

FEBRUARY 14, 2025

This dual-path approach leverages Kafkas capability for low-latency streaming and Icebergs efficient management of large-scale, immutable datasets, ensuring both real-time responsiveness and comprehensive historical data availability. million impression events globally every second, with each event approximately 1.2KB in size.

Tuning 166

Tuning Latency Efficiency Storage 166

DZone

MARCH 14, 2023

As an engineer, you probably know that server performance under heavy load is crucial for maintaining the availability and responsiveness of your services. But what happens when traffic bursts overwhelm your system? Queueing requests is a common solution, but what's the best approach: FIFO or LIFO?

Strategy 147

Strategy Latency Availability Traffic 147

Dynatrace

JUNE 1, 2023

These organizations rely heavily on performance, availability, and user satisfaction to drive sales and retain customers. Availability Availability SLO quantifies the expected level of service availability over a specific time period. Availability is typically expressed in 9’s, such as 99.9%. or 99.99% of the time.

Latency 245

Latency Website Traffic Virtualization 245

Dynatrace

DECEMBER 27, 2022

First, it helps to understand that applications and all the services and infrastructure that support them generate telemetry data based on traffic from real users. Latency is the time that it takes a request to be served. Availability. To measure availability, we can rely on an HTTP monitor from Dynatrace Synthetic Monitoring.

Software 306

Software Software Benchmarking Latency 306

Dynatrace

AUGUST 25, 2023

These signals ( latency, traffic, errors, and saturation ) provide a solid means of proactively monitoring operative systems via SLOs and tracking business success. SLOs, as a measure of service quality, can track the related availability, reliability, and performance. This is what Dynatrace captures as response time.

Performance 244

Performance Latency Traffic Metrics 244

Dynatrace

FEBRUARY 21, 2024

Before a new version of the application is deployed, the software is subject to a series of load tests that evaluate capacity and performance under a series of simulated traffic and application demands. These metrics are latency, traffic, errors, and saturation, all of which must be key considerations when curating user experience.

Speed 264

Speed Software Software Latency 264

DZone

AUGUST 16, 2023

Benefits of Caching Improved performance: Caching eliminates the need to retrieve data from the original source every time, resulting in faster response times and reduced latency. Reduced server load: By serving cached content, the load on the server is reduced, allowing it to handle more requests and improving overall scalability.

Cache 246

Cache Scalability Performance Latency 246

The Netflix TechBlog

NOVEMBER 2, 2020

How viewers are able to watch their favorite show on Netflix while the infrastructure self-recovers from a system failure By Manuel Correa , Arthur Gonigberg , and Daniel West Getting stuck in traffic is one of the most frustrating experiences for drivers around the world. Logs and background requests are examples of this type of traffic.

Traffic 261

Traffic Metrics Infrastructure Architecture 261

Dynatrace

FEBRUARY 15, 2023

SREs use Service-Level Indicators (SLI) to see the complete picture of service availability, latency, performance, and capacity across various systems, especially revenue-critical systems. This is all available out-of-the-box with the default workflow template provided by Site Reliability Guardian.

DevOps 246

DevOps Latency Traffic Best Practices 246

The Netflix TechBlog

SEPTEMBER 10, 2024

Continuous Instrumentation of the Linux Scheduler To ensure the reliability of our workloads that depend on low latency responses, we instrumented the run queue latency for each container, which measures the time processes spend in the scheduling queue before being dispatched to the CPU.

Latency 262

Latency Metrics Programming Monitoring 262

Dynatrace

MAY 31, 2023

Keeping pace with modern digital transformation requires ensuring that applications are responsive, resilient, and always available amid increased complexity. There are now many more applications, tools, and infrastructure variables that impact an application’s performance and availability. availability.

Best Practices 246

Best Practices DevOps Latency Metrics 246

The Netflix TechBlog

FEBRUARY 18, 2022

We thus assigned a priority to each use case and sharded event traffic by routing to priority-specific queues and the corresponding event processing clusters. This separation allows us to tune system configuration and scaling policies independently for different event priorities and traffic patterns.

Systems 334

Systems Traffic Architecture Mobile 334

The Netflix TechBlog

NOVEMBER 3, 2022

In PACELC terms we choose PC/EC and have the same level of availability for writes of our previous system while improving our theoretical availability for reads. In that scenario, the system would need to deal with the data propagation latency directly, for example, by use of timeouts or client-originated update tracking mechanisms.

Cache 233

Cache Latency Traffic Systems 233

The Netflix TechBlog

OCTOBER 8, 2024

Rajiv Shringi Vinay Chella Kaidan Fullerton Oleksii Tkachuk Joey Lynch Introduction As Netflix continues to expand and diversify into various sectors like Video on Demand and Gaming , the ability to ingest and store vast amounts of temporal data — often reaching petabytes — with millisecond access latency has become increasingly vital.

Latency 239

Latency Storage Traffic Tuning 239

Dynatrace

SEPTEMBER 30, 2021

Cloud migration is the process of transferring some or all your data, software, and operations to a cloud-based computing environment that offers unlimited scale and high availability. In case of a spike in traffic, you can automatically spin up more resources, often in a matter of seconds. Improved performance and availability.

Cloud 241

Cloud Traffic Best Practices Hardware 241

Dynatrace

MAY 19, 2022

Every organization’s goal is to keep its systems available and resilient to support business demands. This view shows the availability SLO for key application functions, like login and vehicle list, as well as a large set of timeframes, like last 30 minutes, last hour, today, and last six days. Dynatrace news. Saturation.

Automotive 290

Automotive Latency Architecture Mobile 290

The Netflix TechBlog

SEPTEMBER 18, 2024

Central to this infrastructure is our use of multiple online distributed databases such as Apache Cassandra , a NoSQL database known for its high availability and scalability. It also serves as central configuration of access patterns such as consistency or latency targets. Useful for keeping “n-newest” or prefix path deletion.

Latency 260

Latency Storage Cache Servers 260

The Netflix TechBlog

MARCH 5, 2024

Reduced tail latencies In both our GRPC and DGS Framework services, GC pauses are a significant source of tail latencies. Each of these errors is a canceled request resulting in a retry so this reduction further reduces overall service traffic by this rate: Errors rates per second. There is no best garbage collector.

Latency 237

Latency Java Tuning Efficiency 237

Dynatrace

MARCH 16, 2023

Monitors signals The first attribute of a good SLO is the ability to monitor the four “golden signals”: latency, traffic, error rates, and resource saturation. Dynatrace OneAgent provided information about failure rates, latency, and throughput, along with iOS data for users, crashes, and error rates.

DevOps 264

DevOps Latency Metrics Traffic 264

The Netflix TechBlog

JUNE 4, 2019

Because microprocessors are so fast, computer architecture design has evolved towards adding various levels of caching between compute units and the main memory, in order to hide the latency of bringing the bits to the brains. This avoids thrashing caches too much for B and evens out the pressure on the L3 caches of the machine.

Cache 258

Cache Latency Airlines Logistics 258

Scalegrid

APRIL 16, 2020

Each of these models is suitable for production deployments and high traffic applications, and are available for all of our supported databases, including MySQL , PostgreSQL , Redis™ and MongoDB® database ( Greenplum® database coming soon). This can result in significant cost savings for high traffic applications.

Cloud 242

Cloud Azure AWS Database 242

Dynatrace

JUNE 1, 2023

These organizations rely heavily on performance, availability, and user satisfaction to drive sales and retain customers. Availability Availability SLO quantifies the expected level of service availability over a specific time period. Availability is typically expressed in 9’s, such as 99.9%. or 99.99% of the time.

Traffic 173

Traffic Website Latency Virtualization 173

The Netflix TechBlog

SEPTEMBER 8, 2020

For each route we migrated, we wanted to make sure we were not introducing any regressions: either in the form of missing (or worse, wrong) data, or by increasing the latency of each endpoint. Being able to canary a new route let us verify latency and error rates were within acceptable limits. Replay Testing Enter replay testing.

Latency 241

Latency Cache Java Traffic 241

Dynatrace

JUNE 8, 2020

However, providing insight into a certain portion of Mission Control health monitoring of Dynatrace Managed deployments has to-date only been available to Dynatrace ONE Premium customers. Metrics are provided for general host info like CPU usage and memory consumption, OneAgent traffic, and network latency. What’s next.

Software 214

Software Software Programming Metrics 214

The Netflix TechBlog

AUGUST 30, 2021

For example, when running tests, the state of the device will change from “available for testing” to “in test.” As such, we can see that the traffic load on the Device Management Platform’s control plane is very dynamic over time. Over the lifecycle of a device connected to the RAE, the device can change attributes at any time.

Latency 222

Latency Traffic Transportation Cloud 222

Scalegrid

DECEMBER 16, 2019

Azure and found that DigitalOcean performance was in line with, if not better, on both high throughput and low latency in the deployment. While adequate for low-traffic applications, small databases, and dev/test environments, we recommend against leveraging shared clusters for your MongoDB production deployments.

Azure 187

Azure AWS Database Latency 187

The Netflix TechBlog

AUGUST 29, 2023

Since there were no existing solutions available, we needed to build them ourselves. To improve availability, we designed systems where components could fail separately and avoid single points of failure. Our internal IPC traffic is now a mix of plain REST, GraphQL , and gRPC.

Traffic 229

Traffic Latency Cloud C++ 229

Dynatrace

JULY 6, 2020

Azure Traffic Manager. Get insights into various aspects of database performance, including SQL queries or procedures, SQL modifications, SQL transactions, any detected problems or availability issues, hotspots, and more—all the valuable information that a DevOps team could ask for to optimize database performance. Azure Batch.

Azure 227

Azure Cloud Big Data Virtualization 227

The Netflix TechBlog

AUGUST 13, 2020

We also highlight interesting broader events such as regional traffic evacuations and nearby deployments , information that is vital to understanding health holistically. Regional traffic evacuations. For example, a latency increase is less critical than error rate increase and some error codes are less critical than others.

Monitoring 219

Monitoring Tuning Traffic Metrics 219

Dynatrace

MAY 17, 2023

For that, we focused on OpenTelemetry as the underlying technology and showed how you can use the available SDKs and libraries to instrument applications across different languages and platforms. Here, we can find statistics on the overall availability of the database, connections, queries, and errors. What is OneAgent?

Metrics 243

Metrics Database Monitoring Network 243

Dynatrace

JUNE 27, 2022

RUM, however, has some limitations, including the following: RUM requires traffic to be useful. Because RUM relies on user-generated traffic, it’s hard to indicate persistent issues across the board. This includes development, user acceptance testing, beta testing, and general availability. RUM generates a lot of data.

Best Practices 244

Best Practices Monitoring Wireless Traffic 244

Dynatrace

APRIL 26, 2022

DEM provides an outside-in approach to user monitoring that measures user experience (UX) in real time to ensure applications and services are available, functional, and well-performing across all channels of the digital experience, including web, mobile, and IoT.

Monitoring 246

Monitoring Social Media IoT Metrics 246

Dynatrace

JULY 18, 2023

Whether tracking internal, workload-centric indicators such as errors, duration, or saturation or focusing on the golden signals and other user-centric views such as availability, latency, traffic, or engagement, SLOs-as-code enables coherent and consistent monitoring throughout the environment at scale.

Best Practices 246

Best Practices Code Infrastructure Latency 246

The Netflix TechBlog

NOVEMBER 22, 2019

December 2 1pm-2pm CMP 326-R Capacity Management Made Easy with Amazon EC2 Auto Scaling Vadim Filanovsky , Senior Performance Engineer & Anoop Kapoor, AWS Abstract :Amazon EC2 Auto Scaling offers a hands-free capacity management experience to help customers maintain a healthy fleet, improve application availability, and reduce costs.

AWS 38

AWS Entertainment Open Source Benchmarking 38

The Netflix TechBlog

AUGUST 16, 2023

That’s a significant amount and certainly more than is necessary relative to the traffic on most clusters. More acutely, if a traffic spike occurs and Zuul instances scale up, it exponentially increases connections open to origins. There is effectively no churn of connections, even at peak traffic.

Traffic 178

Traffic Servers Google Metrics 178

All Things Distributed

JANUARY 18, 2012

It is very gratifying to see all of our learning and experience become available to our customers in the form of an easy-to-use managed service. s web-based applications often encounter database scaling challenges when faced with growth in users, traffic, and data. Amazon DynamoDB offers low, predictable latencies at any scale.

Scalability 162

Scalability Database Ecommerce Latency 162