The Netflix TechBlog

JUNE 14, 2023

The GraphQL shim enabled client engineers to move quickly onto GraphQL, figure out client-side concerns like cache normalization, experiment with different GraphQL clients, and investigate client performance without being blocked by server-side migrations. To launch Phase 1 safely, we used AB Testing. How does it work?

Traffic 357

Traffic Latency Cache Metrics 357

Dynatrace

JANUARY 16, 2023

That trend will likely continue as Kubernetes security awareness further rises and a new class of security solutions becomes available. Of the organizations in the Kubernetes survey, 71% run databases and caches in Kubernetes, representing a +48% year-over-year increase.

Open Source 358

Open Source Java Operating System Programming 358

Dynatrace

OCTOBER 7, 2021

Amazon compute solutions are designed to streamline resource provisioning and container management with two services: AWS Lambda : Lambda provides serverless compute infrastructure that lets you run code in response to predetermined events or conditions and automatically manage all compute resources required for these processes. Data Store.

Serverless 325

Serverless AWS Lambda Storage 325

Dynatrace

JANUARY 31, 2024

The RAG process begins by summarizing and converting user prompts into queries that are sent to a search platform that uses semantic similarities to find relevant data in vector databases, semantic caches, or other online data sources. Observing AI models Running AI models at scale can be resource-intensive.

Cache 276

Cache Azure Infrastructure Monitoring 276

The Netflix TechBlog

JULY 12, 2019

The Tech Hollow , an OSS technology we released a few years ago, has been best described as a total high-density near cache : Total : The entire dataset is cached on each node?—?there there is no eviction policy, and there are no cache misses. Near : the cache exists in RAM on any instance which requires access to the dataset.

Cache 184

Cache Architecture Latency Engineering 184

All Things Distributed

JULY 14, 2015

Streams provide you with the underlying infrastructure to create new applications, such as continuously updated free-text search indexes, caches, or other creative extensions requiring up-to-date table changes. At launch, an item’s change record is available in the stream for 24 hours after it is created.

Database 158

Database Lambda AWS IoT 158

Smashing Magazine

MAY 9, 2022

Performance Game Changer: Browser Back/Forward Cache. Performance Game Changer: Browser Back/Forward Cache. With that caveat out of the way, let’s get to the guts of the article: What is the Back/Forward Cache and why does it matter so much? Didn’t The HTTP Cache Do All That Anyway? Barry Pollard.

Cache 106

Cache Games Performance Website 106

The Netflix TechBlog

APRIL 27, 2023

Moreover, common database optimizations like caching recently queried data don’t really work for alerting queries because, generally speaking, the last received datapoint is required for correctness. This is especially true when either the data is not available in Atlas or the query is not supported because of (say) cardinality constraints.

Storage 297

Storage Cache Metrics Database 297

Percona

JUNE 22, 2023

To make data count and to ensure cloud computing is unabated, companies and organizations must have highly available databases. This guide provides an overview of what high availability means, the components involved, how to measure high availability, and how to achieve it. How does high availability work?

Availability 132

Availability Database Open Source Hardware 132

The Netflix TechBlog

OCTOBER 8, 2024

Building on these foundational abstractions, we developed the TimeSeries Abstraction  — a versatile and scalable solution designed to efficiently store and query large volumes of temporal event data with low millisecond latencies, all in a cost-effective manner across various use cases. For example: {“device_type”: “ios”}.

Latency 239

Latency Storage Traffic Tuning 239

Alex Russell

MARCH 31, 2022

Browsers will cache tools popular among vocal, leading-edge developers. There's plenty of space for caching most popular frameworks. The best available proxy data also suggests that shared caches would have a minimal positive effect on performance. Suppose a user has only downloaded part of the cache.

Cache 89

Cache Government Traffic Network 89

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. In addition to storing item size information in the page token, the server also estimates the average item size for a given namespace and caches it locally.

Latency 260

Latency Storage Cache Servers 260

Dynatrace

SEPTEMBER 13, 2023

Dynatrace AutomationEngine workflows automate release validation using AWS Well-Architected pillars With Dynatrace, you can create workflows that automate various tasks based on events, schedules or Davis problem triggers. Workflows are powered by a core platform technology of Dynatrace called the AutomationEngine.

AWS 305

AWS Efficiency Azure Cloud 305

Dynatrace

JULY 16, 2020

This would also mean I need a service that detects any new environments, creates API tokens for them, refreshes API tokens on expiry and ensures that there is always a valid API token available. TenantCache: a cache to store tenant information and API token information and semi-permanent data to avoid unnecessary roundtrips. ?

Cache 289

Cache Serverless Efficiency Tuning 289

The Netflix TechBlog

MARCH 7, 2024

These integrations are implemented through Metaflow’s extension mechanism which is publicly available but subject to change, and hence not a part of Metaflow’s stable API yet. Explainer flow is event-triggered by an upstream flow, such Model A, B, C flows in the illustration.

Systems 235

Systems Media Cache Open Source 235

Dynatrace

DECEMBER 21, 2023

After identifying about 100 idle host instances to be shut down, they learned that these hosts were provisioned in anticipation of upscaling to support an upcoming major sales event. Implement appropriate caching layers (for example, read-only cache for static data). Reduce inter-process communications overhead.

Cloud 264

Cloud Energy Best Practices Cache 264

Scalegrid

JULY 8, 2020

If you must kill the script at this point, there are two options available: SCRIPT KILL command can be used to stop a script that hasn’t yet done any writes. The complete information on methods to kill the script execution and related behavior are available in the documentation. Behavior on Sentinel-Monitored High Availability Systems.

Servers 239

Servers Database Availability Monitoring 239

Dean Hume

MAY 16, 2018

Have you ever been on a website and noticed a popup notification that suggests that there is a new version of the site available? This is where a pop up notification like Google’s Inbox provides the user with a means of always having the latest version of cached resources. then(cache => cache.addAll([ './dog.jpg'

Availability 100

Availability Cache Code Google 100

The Netflix TechBlog

SEPTEMBER 10, 2024

The other main use case was RENO, the Rapid Event Notification System mentioned above. Throughout this evolution, we’ve been able to maintain high availability and a consistent message delivery rate, with Pushy successfully maintaining 99.999% reliability for message delivery over the last few months.

Latency 234

Latency Cache Tuning Efficiency 234

CSS Wizardry

SEPTEMBER 16, 2024

However, there are a handful of ways available to us—some are, admittedly, more easy and free than others. If you want resources to load faster on high-latency connections, making them smaller is still a sensible idea, although file size typically correlates more with available bandwidth as file sizes increase.

Latency 234

Latency Cache Transportation Mobile 234

The Netflix TechBlog

NOVEMBER 4, 2019

Best of all, our page can load much faster since everything is cached in Elasticsearch. Luckily, we have Kafka events that are emitted each time a piece of data changes. The first step is to listen to those events and act accordingly. Keeping Everything Up To Date Indexing the data once isn’t enough.

Database 246

Database Cache Servers Performance 246

Dynatrace

AUGUST 30, 2019

And while these events are a great opportunity for us Dynatracers to share our thoughts with our users, it’s also an amazing opportunity to for us to learn from our users about how they use Dynatrace to optimize digital experiences and digital operations in both the public and private sector. Dynatrace news. APAC Series.

Cache 214

Cache Database Architecture Government 214

Dynatrace

NOVEMBER 28, 2022

Lambda then takes a snapshot of the memory and disk state of the initialized execution environment, persists the encrypted snapshot, and caches it for low-latency access. Saving your cloud operations and site reliability engineering teams hours of guesswork and manual tagging, the Davis AI engine analyzes billions of events in real time.

Lambda 246

Lambda AWS Serverless Latency 246

Dynatrace

DECEMBER 20, 2021

Think of a session replay like a movie based on real events. These changes are known as “events,” and they occur any time a user interacts with your site or application, such as when they swipe the screen, move the mouse or input text. Streamlined asset caching: Asset caching is critical for creating accurate replays.

Mobile 264

Mobile Website Analytics Cache 264

The Netflix TechBlog

DECEMBER 17, 2019

In databases like MySQL and PostgreSQL, transaction logs are the source of CDC events. In order to be supported, a database is required to fulfill a set of features that are commonly available in systems like MySQL, PostgreSQL, MariaDB, and others. Some of DBLog’s features are: Processes captured log events in-order.

Database 221

Database Traffic Transportation Open Source 221

The Netflix TechBlog

DECEMBER 17, 2019

In databases like MySQL and PostgreSQL, transaction logs are the source of CDC events. In order to be supported, a database is required to fulfill a set of features that are commonly available in systems like MySQL, PostgreSQL, MariaDB, and others. Some of DBLog’s features are: Processes captured log events in-order.

Database 206

Database Traffic Transportation Open Source 206

Dynatrace

NOVEMBER 3, 2021

Examples include a spike in memory utilization, a decrease in cache hit ratio, or an increase in CPU utilization. Log entries describe events, such as starting a process, handling an error, or simply completing some part of a workload. DevOps practitioners struggle to maintain highly available and scalable applications.

Monitoring 264

Monitoring Metrics DevOps Scalability 264

The Netflix TechBlog

OCTOBER 16, 2019

Another example of a dataset that needs to be disseminated is the result of a machine-learning model: the results of these models may be used by several teams, but the ML teams behind the model aren’t necessarily interested in maintaining high-availability services in the critical path. it is meant purely for data versioning and propagation.

Cache 191

Cache Architecture Metrics Java 191

The Netflix TechBlog

MAY 4, 2023

It provides a good read on the availability and latency ranges under different production conditions. In this approach, we record the requests and responses for the service that needs to be updated or replaced to an offline event stream asynchronously. It helps expose memory leaks, deadlocks, caching issues, and other system issues.

Traffic 347

Traffic Latency Tuning Systems 347

Dynatrace

NOVEMBER 13, 2020

By adding Flutter support, we’re giving you more freedom to choose what best fits your use case and available resources. User actions in Dynatrace are more than just simple events. This flushes the cache on the Dynatrace Cluster; you should see events in the web UI shortly thereafter. What’s next.

Code 244

Code Mobile Monitoring Infrastructure 244

tRPC

MARCH 20, 2025

This has been available since quite early on via the @next tag, but now it's officially released. You can now start executing a procedure on the server in a RSC, pick up the pending promise on the client, and automatically hydrate the React Query cache clientside. We recommend using this in the first instance going forward.

Servers 72

Servers Cache Processing Design 72

CSS Wizardry

NOVEMBER 9, 2018

In the unlikely event that you don’t have access to the CSS file that contains the @import. We’re bound to an inefficient caching strategy: a change to, say, the background colour of the currently-selected day on a date picker used on only one page, would require that we cache-bust the entirety of app.css. in your HTML.

Network 278

Network Performance Media Cache 278

The Netflix TechBlog

MARCH 5, 2019

the order of the rows on your Netflix home page, issuing content licenses when you click play, finding the Open Connect cache closest to you with the content you requested, and many more). Security Events Platform See open source project such as StreamAlert and Siddhi to get some general ideas.

Infrastructure 185

Infrastructure Cloud Scalability AWS 185

CSS Wizardry

SEPTEMBER 28, 2023

Notice below how our is momentarily considered our LCP candidate at 1.0s , before ultimately being replaced by the at 2.5s : Blue shading shows an LCP candidate; green shading and/or a red border shows the actual LCP element and event. we get our LCP event in full. What if Chrome finds a later element of the same size?

Games 329

Games Ecommerce Cache Systems 329

Percona

APRIL 24, 2023

Effectively, the memory available for pages of the table gets less. The more indexes, the more the requirement of memory for effective caching. If we don’t increase the available memory, this starts hurting the entire performance of the system. Indexes like B-Tree indexes are known to cause more random writes.

Tuning 139

Tuning Cache Storage Database 139

O'Reilly Software

JUNE 12, 2018

The benefits of modeling data as events as a mechanism to evolve our software systems. Enter streams of events, specifically the kinds of streams that technology like Kafka makes possible. Continue reading Microservices, events, and upside-down databases. The concepts may well seem odd at first, but stick with them.

Database 72

Database Cache Architecture Latency 72

Dynatrace

APRIL 21, 2022

Figure 1 – Individual Host pages show performance metrics, problem history, event history, and related processes for each host. Missing caching layers. With the reliability pillar of the Well-Architected Framework, organizations must ensure they build resilient and available applications.

Azure 246

Azure Monitoring Virtualization Metrics 246