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

NOVEMBER 9, 2022

At Netflix, we periodically reevaluate our workloads to optimize utilization of available capacity. 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.

Hardware 363

Hardware Cache Performance Latency 363

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 245

Latency Metrics Programming Monitoring 245

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

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

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 189

Latency Website Traffic Virtualization 189

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 186

Performance Latency Traffic Metrics 186

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 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 248

Latency Storage Cache Efficiency 248

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 234

Latency Java Tuning Efficiency 234

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 233

Best Practices DevOps Latency Metrics 233

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 230

DevOps Latency Traffic Best Practices 230

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 229

Cache Latency Traffic Systems 229

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 277

Software Software Benchmarking Latency 277

IO River

NOVEMBER 2, 2023

What is 5 Nines Availability?In However, consumers often prioritize availability in many systems. Furthermore, there are many recognized standards to measure the availability of a service or system, and the most common one is to measure it as a percentage."Five This level of availability equates to only about 5.26

Availability 52

Availability Social Media Traffic Games 52

IO River

NOVEMBER 2, 2023

What is 5 Nines Availability?In However, consumers often prioritize availability in many systems. Furthermore, there are many recognized standards to measure the availability of a service or system, and the most common one is to measure it as a percentage."Five This level of availability equates to only about 5.26

Availability 52

Availability Social Media Traffic Games 52

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 258

Traffic Metrics Infrastructure Architecture 258

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

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 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

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. Similarly, an increased throughput signifies an intensive workload on a server and a larger latency.

Metrics 130

Metrics Monitoring Latency Cache 130

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

Scalegrid

AUGUST 27, 2024

They utilize a routing key mechanism that ensures precise navigation paths for message traffic. RabbitMQ excels at managing asynchronous processing and reducing latency while distributing workloads effectively across the system. Within RabbitMQ’s ecosystem, bindings function as connectors between exchanges and queues.

Ecommerce 130

Ecommerce IoT Games Scalability 130

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

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 280

Automotive Latency Architecture Azure 280

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 175

Cloud Traffic Best Practices Hardware 175

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 219

Latency Traffic Transportation Cloud 219

The Netflix TechBlog

MARCH 10, 2023

Existing data got updated to be backward compatible without impacting the existing running production traffic. Data Sharding strategy in elasticsearch is updated to provide low search latency (as described in blog post) Design of new Cassandra reverse indices to support different sets of queries.

Media 241

Media Traffic Processing Design 241

DZone

FEBRUARY 26, 2021

This test helps to ensure that the application performs as expected irrespective of the conditions like fluctuating network, bandwidth availability, or traffic load.

Performance Testing 121

Performance Testing Testing Performance Latency 121

IO River

NOVEMBER 2, 2023

A CDN (Content Delivery Network) is a network of geographically distributed servers that brings web content closer to where end users are located, to ensure high availability, optimized performance and low latency. Organizations can select the most cost-effective option for each region or traffic type, reducing overall CDN expenses.4.

Best Practices 52

Best Practices Strategy Traffic Virtualization 52

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

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

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 203

Best Practices Code Infrastructure Latency 203

VoltDB

AUGUST 8, 2024

For example, an e-commerce company can use real-time data on website traffic and customer behaviors to adjust pricing or launch targeted promotions during peak shopping periods. Processing such high data volumes requires robust infrastructure and scalable architecture designed for high performance and high availability.

IoT 52

IoT Latency Traffic Logistics 52

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 183

Metrics Monitoring Database Network 183

Percona

MARCH 20, 2023

In this case, we have a quite well-defined scenario that can resemble the image below: In this scenario, the proxies must sit inside Pods, balancing the incoming traffic from the Service LoadBalancer connecting with the active data nodes. Let us take a look also the latency: Here the situation starts to be a little bit more complicated.

Games 126

Games Latency Traffic Cache 126

Percona

DECEMBER 11, 2023

DLVs are particularly advantageous for databases with large allocated storage, high I/O per second (IOPS) requirements, or latency-sensitive workloads. For write-only traffic, the QPS counters match the performance of standard RDS instances for lower thread counts, though, for higher counters, there is a drastic improvement.

AWS 103

AWS Benchmarking Performance Traffic 103