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 236

Latency Storage Traffic Tuning 236

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.

Traffic 356

Traffic Latency Cache Metrics 356

The Netflix TechBlog

SEPTEMBER 10, 2024

On Titus , our multi-tenant compute platform, a "noisy neighbor" refers to a container or system service that heavily utilizes the server's resources, causing performance degradation in adjacent containers. To emit a run queue latency metric, we leveraged three eBPF hooks: sched_wakeup, sched_wakeup_new, and sched_switch.

Latency 245

Latency Metrics Programming Monitoring 245

DZone

MARCH 14, 2023

But what happens when traffic bursts overwhelm your system? In this post, we'll explore both strategies through a simple simulation in Colab, allowing you to see the impact of changing parameters on system performance. Queueing requests is a common solution, but what's the best approach: FIFO or LIFO?

Strategy 147

Strategy Latency Availability Traffic 147

Scalegrid

FEBRUARY 8, 2024

A distributed storage system is foundational in today’s data-driven landscape, ensuring data spread over multiple servers is reliable, accessible, and manageable. This guide delves into how these systems work, the challenges they solve, and their essential role in businesses and technology.

Storage 130

Storage Systems Big Data Azure 130

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

The Netflix TechBlog

SEPTEMBER 18, 2024

These include challenges with tail latency and idempotency, managing “wide” partitions with many rows, handling single large “fat” columns, and slow response pagination. 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 248

Latency Storage Cache Efficiency 248

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 220

Speed Software Software Latency 220

The Netflix TechBlog

NOVEMBER 3, 2022

As the number of Titus users increased over the years, the load and pressure on the system increased substantially. cell): Titus Job Coordinator is a leader elected process managing the active state of the system. For example, a batch workflow orchestration system may create multiple jobs which are part of a single workflow execution.

Cache 229

Cache Latency Traffic Systems 229

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. Performance typically addresses response times or latency aspects and contributes to the four golden signals.

Performance 186

Performance Latency Traffic Metrics 186

Dynatrace

JUNE 1, 2023

It represents the percentage of time a system or service is expected to be accessible and functioning correctly. Response time Response time refers to the total time it takes for a system to process a request or complete an operation. Note : you might hear the term latency used instead of response time. The Apdex score of 0.85

Latency 189

Latency Website Traffic Virtualization 189

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. Siloed teams and multiple tools make it difficult to align on a single version of the truth for overall system health.

DevOps 230

DevOps Latency Traffic Best Practices 230

Dynatrace

JUNE 1, 2023

It represents the percentage of time a system or service is expected to be accessible and functioning correctly. Response time Response time refers to the total time it takes for a system to process a request or complete an operation. Note : you might hear the term latency used instead of response time. The Apdex score of 0.85

Traffic 173

Traffic Website Latency Virtualization 173

Dynatrace

MAY 31, 2023

Uptime Institute’s 2022 Outage Analysis report found that over 60% of system outages resulted in at least $100,000 in total losses, up from 39% in 2019. At the lowest level, SLIs provide a view of service availability, latency, performance, and capacity across systems. Make SLOs realistic.

Best Practices 233

Best Practices DevOps Latency Metrics 233

The Netflix TechBlog

JANUARY 10, 2024

This architecture shift greatly reduced the processing latency and increased system resiliency. By integrating with studio content systems, we enabled the pipeline to leverage rich metadata from the creative side and create more engaging member experiences like interactive storytelling.

Processing 234

Processing Media Latency Innovation 234

Scalegrid

AUGUST 27, 2024

Key features of RabbitMQ, such as message acknowledgments, complex routing, and asynchronous processing, contribute to system reliability and performance. They utilize a routing key mechanism that ensures precise navigation paths for message traffic. This non-blocking nature improves the system’s responsiveness and efficiency.

Ecommerce 130

Ecommerce IoT Games Scalability 130

Dynatrace

AUGUST 27, 2024

Technical : Specifies technical requirements for ICT systems within an organization. Automatically and continuously checking systems to see if they meet the latest security standards not only helps organizations pass annual compliance audits but also reduces the risks of cyber security incidents.

Best Practices 277

Best Practices Government DevOps Analytics 277

Dotcom-Montior

NOVEMBER 24, 2021

Web developers or administrators did not have to worry or even consider the complexity of distributed systems of today. Great, your system was ready to be deployed. Once the system was deployed, to ensure everything was running smoothly, it only took a couple of simple checks to verify. What is a Distributed System?

Systems 74

Systems Monitoring Hardware Network 74

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. So how can teams start implementing SLOs? This telemetry data serves as the basis for establishing meaningful SLOs.

Software 277

Software Software Benchmarking Latency 277

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. CRITICAL : This traffic affects the ability to play.

Traffic 258

Traffic Metrics Infrastructure Architecture 258

Scalegrid

JANUARY 25, 2024

Key Takeaways Critical performance indicators such as latency, CPU usage, memory utilization, hit rate, and number of connected clients/slaves/evictions must be monitored to maintain Redis’s high throughput and low latency capabilities. These essential data points heavily influence both stability and efficiency within the system.

Metrics 130

Metrics Monitoring Latency Cache 130

Dynatrace

JUNE 25, 2020

The network latency between cluster nodes should be around 10 ms or less. Minimized cross-data center network traffic. For Premium HA, this has been extended from 10 ms latency (in the same network region) to around 100 ms network latency due to asynchronous data replication between regions. What’s next?

Availability 256

Availability Hardware Latency Traffic 256

The Netflix TechBlog

AUGUST 29, 2023

To improve availability, we designed systems where components could fail separately and avoid single points of failure. In order for a service to talk to another, it needs to know two things: the name of the destination service, and whether or not the traffic should be secure. First, we’ve grown the number of different IPC clients.

Traffic 225

Traffic Latency Cloud C++ 225

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 228

DevOps Latency Metrics Traffic 228

Dynatrace

APRIL 25, 2023

For example, to handle traffic spikes and pay only for what they use. Observability is essential to ensure the reliability, security and quality of any software system. Scale automatically based on the demand and traffic patterns. Higher latency and cold start issues due to the initialization time of the functions.

Serverless 220

Serverless Lambda Azure AWS 220

Adrian Cockcroft

MAY 6, 2023

Then they tried to scale it to cope with high traffic and discovered that some of the state transitions in their step functions were too frequent, and they had some overly chatty calls between AWS lambda functions and S3. They state in the blog that this was quick to build, which is the point.

Serverless 145

Serverless Lambda Best Practices Traffic 145

Dynatrace

MAY 19, 2022

Every organization’s goal is to keep its systems available and resilient to support business demands. Lastly, error budgets, as the difference between a current state and the target, represent the maximum amount of time a system can fail per the contractual agreement without repercussions. Dynatrace news. A world of misunderstandings.

Automotive 280

Automotive Latency Architecture Azure 280

The Netflix TechBlog

MAY 14, 2021

However, they are scattered across multiple systems, and there isn’t an easy way to tie related messages together. You’re joining tables, resolving status types, cross-referencing data manually with other systems, and by the end of it all you ask yourself why? Things got hairy. We wanted a scalable service that was near real-time, 2.

Traffic 164

Traffic Java Latency Google 164

The Netflix TechBlog

SEPTEMBER 2, 2020

Edgar helps Netflix teams troubleshoot distributed systems efficiently with the help of a summarized presentation of request tracing, logs, analysis, and metadata. The more complex a system, the more places to look for clues. In an earlier blog post, we discussed Telltale , our health monitoring system. What is Edgar?

Latency 298

Latency Transportation Engineering Traffic 298

The Morning Paper

NOVEMBER 14, 2019

Taiji: managing global user traffic for large-scale internet services at the edge Xu et al., It’s another networking paper to close out the week (and our coverage of SOSP’19), but whereas Snap looked at traffic routing within the datacenter, Taiji is concerned with routing traffic from the edge to a datacenter. SOSP’19.

Traffic 42

Traffic Internet Internet Latency 42

The Netflix TechBlog

AUGUST 30, 2021

System Setup Architecture The following diagram summarizes the architecture description: Figure 1: Event-sourcing architecture of the Device Management Platform. As such, we can see that the traffic load on the Device Management Platform’s control plane is very dynamic over time.

Latency 219

Latency Traffic Transportation Cloud 219

VoltDB

AUGUST 8, 2024

Some of the most common use cases for real-time data platforms include business support systems, fraud prevention, hyper-personalization, and Internet of Things (IoT) applications (more on this in a bit). One common problem for real-time data platforms is latency, particularly at scale.

IoT 52

IoT Latency Traffic Logistics 52

Dynatrace

JULY 24, 2023

Consider an event-driven automation system designed for incident management. When a server experiences an outage, the system promptly triggers an alert and initiates actions like restarting a server or redirecting traffic to a redundant server. But it doesn’t stop there. All these actions aim to avert future incidents.

DevOps 231

DevOps Traffic Efficiency Servers 231

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 175

Traffic Servers Google Metrics 175

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 238

Latency Cache Java Traffic 238

DZone

FEBRUARY 26, 2021

Performance testing is a non-functional type of software testing technique that is performed to know the performance of the current system. It checks the system’s responsiveness, speed, and stability under varying workload conditions.

Performance Testing 121

Performance Testing Testing Performance Latency 121

Alex Russell

FEBRUARY 28, 2022

These steps inform a general description of the interaction loop: The system is ready to receive input. The system is ready to receive input. The chief effect of the architectural difference is to shift the distribution of latency within the loop. Improving latency for one scenario can degrade it in another.

Performance 113

Performance Latency Architecture Network 113