The Netflix TechBlog

APRIL 27, 2023

A few years ago, we were paged by our SRE team due to our Metrics Alerting System falling behind — critical application health alerts reached engineers 45 minutes late! Hence, we started down the path of alert evaluation via real-time streaming metrics. This has proven to be valuable towards reducing Mean Time to Recover (MTTR).

Storage 288

Storage Cache Metrics Database 288

Dynatrace

JANUARY 31, 2024

Bringing together metrics, logs, traces, problem analytics, and root-cause information in dashboards and notebooks, Dynatrace offers an end-to-end unified operational view of cloud applications. Beyond SLAs, the emergence of machine learning technical debt poses an additional challenge for model observability.

Cache 201

Cache Azure Infrastructure Monitoring 201

Dynatrace

NOVEMBER 6, 2023

When an incident occurs, developers need to know what data to look at, where the incident occurred, and other relevant metrics. In this example, Grabner saw that the adservice workload was running on EKS and could see the relevant metrics, logs, services, events, error logs, and more. “Then, I add a breakpoint.

Development 258

Development DevOps Programming Cloud 258

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.” The challenge, then, is to be able to ingest and process these events in a scalable manner, i.e., scaling with the number of devices, which will be the focus of this blog post.

Latency 213

Latency Traffic Transportation Hardware 213

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 226

Systems Media Cache Open Source 226

The Netflix TechBlog

MARCH 10, 2023

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. After reading the asset ids using one of the ways, an event is created per asset id to be processed synchronously or asynchronously based on the use case.

Media 237

Media Traffic Processing Design 237

Dynatrace

APRIL 5, 2021

AWS Lambda is a serverless compute service that can run code in response to predetermined events or conditions and automatically manage all the computing resources required for those processes. Real-time stream processing to perform live activity tracking, data cleansing, metrics generation, and more. What is AWS Lambda?

Lambda 178

Lambda AWS Serverless Hardware 178

Dynatrace

DECEMBER 15, 2022

ITOps teams use more technical IT incident metrics, such as mean time to repair, mean time to acknowledge, mean time between failures, mean time to detect, and mean time to failure, to ensure long-term network stability. This includes response time, accuracy, speed, throughput, uptime, CPU utilization, and latency. Performance.

Artificial Intelligence 198

Artificial Intelligence DevOps Hardware Virtualization 198

CSS Wizardry

MAY 19, 2020

Their ability to serve the tiniest possible font files tailored to specific user agents and platforms is amazing, and with such a huge, freely-available library served from Google-grade CDNs… I definitely see why people continue to turn to it. I’m happy to say, for the metrics that matter the most, we are 700–1,200ms faster.

Google 364

Google Media Latency Metrics 364

Adrian Cockcroft

AUGUST 1, 2022

photo by Adrian I gave a talk at Monitorama in Portland Oregon in June, which set out the idea that carbon is just another metric to monitor, and that in a few years most of the monitoring and performance tuning tools are going to be reporting and optimizing for carbon alongside latency, throughput, availability and cost.

AWS 52

AWS Virtualization DevOps Latency 52

Scalegrid

JANUARY 19, 2024

The process of rolling back involves undoing any write operations on the previous primary member once it rejoins its replica set after experiencing a failover event, ensuring all data remains consistent across the entire group. The consequences of rollbacks are significant and should not be underestimated.

Database 130

Database Network Servers Monitoring 130

The Netflix TechBlog

NOVEMBER 22, 2019

We’ve compiled our speaking events below so you know what we’ve been working on. In this session, we discuss the technologies used to run a global streaming company, growing at scale, billions of metrics, benefits of chaos in production, and how culture affects your velocity and uptime. We look forward to seeing you there!

AWS 100

AWS Entertainment Open Source Benchmarking 100

The Netflix TechBlog

NOVEMBER 22, 2019

We’ve compiled our speaking events below so you know what we’ve been working on. In this session, we discuss the technologies used to run a global streaming company, growing at scale, billions of metrics, benefits of chaos in production, and how culture affects your velocity and uptime. We look forward to seeing you there!

AWS 100

AWS Entertainment Open Source Benchmarking 100

Brendan Gregg

AUGUST 18, 2019

For example, iostat(1), or a monitoring agent, may tell you your average disk latency, but not the distribution of this latency. bpftrace is suited for this kind of analysis: decomposing metrics into distributions or per-event logs, and creating new metrics for visibility into blind spots. BEGIN Start of bpftrace.

Latency 68

Latency C++ Cache Programming 68

The Netflix TechBlog

FEBRUARY 18, 2022

To this end, we developed a Rapid Event Notification System (RENO) to support use cases that require server initiated communication with devices in a scalable and extensible manner. In this blog post, we will give an overview of the Rapid Event Notification System at Netflix and share some of the learnings we gained along the way.

Systems 334

Systems Traffic Architecture Mobile 334

CSS Wizardry

OCTOBER 27, 2018

Simply knowing the different forms of performance testing that we have available to us, and where they sit in the product development process, makes it much easier for businesses to adopt a performance strategy and keep on top of things. Do changes in performance correlate to changes in business metrics?

Performance Testing 172

Performance Testing Testing Performance Strategy 172

HammerDB

OCTOBER 23, 2023

Note that for all tests, we used the local loopback address and port to provide the lowest possible network latency between client and server and also so we don’t have any concerns about bandwidth limitations. Use the performance metrics available in the database first before looking at data further down in the stack.

Benchmarking 62

Benchmarking Database Network C++ 62

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. The network latency between cluster nodes should be around 10 ms or less. Turnkey high availability across globally distributed data centers. Dynatrace news.

Availability 244

Availability Hardware Latency Traffic 244

All Things Distributed

NOVEMBER 26, 2013

As I discussed in my re:Invent keynote earlier this month, I am now happy to announce the immediate availability of Amazon RDS Cross Region Read Replicas , which is another important enhancement for our customers using or planning to use multiple AWS Regions to deploy their applications. Cross Region Read Replicas are available for MySQL 5.6

Cloud 145

Cloud AWS Traffic Latency 145

Dotcom-Montior

DECEMBER 8, 2021

In the context of IT (Information Technology), an incident is simply an event or issue that disrupts normal operation or quality of service. Now that we have talked about what an incident is, incident management is the process by which teams resolve these events and bring systems and services back to normal operation. Microsoft Teams.

Social Media 90

Social Media Monitoring Latency DevOps 90

Dynatrace

JUNE 1, 2023

Certain SLOs can help organizations get started on measuring and delivering metrics that matter. 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.

Latency 174

Latency Website Traffic Virtualization 174

Dynatrace

JUNE 1, 2023

Certain service-level objective examples can help organizations get started on measuring and delivering metrics that matter. These organizations rely heavily on performance, availability, and user satisfaction to drive sales and retain customers. Availability is typically expressed in 9’s, such as 99.9%. or 99.99% availability.

Traffic 173

Traffic Latency Website Virtualization 173

The Netflix TechBlog

JUNE 14, 2023

So, we relied on higher-level metrics-based testing: AB Testing and Sticky Canaries. To determine customer impact, we could compare various metrics such as error rates, latencies, and time to render. Wins High-Level Health Metrics: AB Testing provided the assurance we needed in our overall client-side GraphQL implementation.

Traffic 353

Traffic Latency Cache Metrics 353

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. let’s call it GS2?—?to

Hardware 363

Hardware Cache Performance Latency 363

Dynatrace

OCTOBER 1, 2021

In IT and cloud computing, observability is the ability to measure a system’s current state based on the data it generates, such as logs, metrics, and traces. If you’ve read about observability, you likely know that collecting the measurements of logs, metrics, and distributed traces are the three key pillars to achieving success.

Metrics 363

Metrics Open Source Monitoring Infrastructure 363

Dynatrace

MAY 17, 2023

Making applications observable—relying on metrics, logs, and traces to understand what software is doing and how it’s performing—has become increasingly important as workloads are shifting to multicloud environments. We also introduced our demo app and explained how to define the metrics and traces it uses. What is OneAgent?

Metrics 168

Metrics Monitoring Database Network 168

IO River

NOVEMBER 2, 2023

What is 5 Nines Availability?In determining a business's value to its clients, the level of service it provides is often a key metric. However, consumers often prioritize availability in many systems. Within this range, Five Nines availability is often considered the gold standard for availability in critical systems.

Availability 52

Availability Social Media Traffic Games 52

IO River

NOVEMBER 2, 2023

What is 5 Nines Availability?In determining a business's value to its clients, the level of service it provides is often a key metric. However, consumers often prioritize availability in many systems. Within this range, Five Nines availability is often considered the gold standard for availability in critical systems.

Availability 52

Availability Social Media Traffic Games 52

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. Additionally, you can easily use any previously defined metrics and SLOs from your environments.

DevOps 215

DevOps Latency Traffic Best Practices 215

The Netflix TechBlog

AUGUST 16, 2023

It’s built on top of Netty , using event loops for non-blocking execution of requests, one loop per core. To reduce contention among event loops, we created connection pools for each, keeping them completely independent. Ideally, the connections to each origin server should converge towards 1 per event loop.

Traffic 170

Traffic Servers Google Metrics 170

The Netflix TechBlog

NOVEMBER 22, 2019

We’ve compiled our speaking events below so you know what we’ve been working on. In this session, we discuss the technologies used to run a global streaming company, growing at scale, billions of metrics, benefits of chaos in production, and how culture affects your velocity and uptime. We look forward to seeing you there!

AWS 37

AWS Entertainment Open Source Benchmarking 37

Adrian Cockcroft

MARCH 17, 2020

The criticality and potential cost of each failure mode is context dependent, and drives the available time and budget for prioritized mitigation plans. They could do things in the wrong order, like developing a custom test for the virus rather than using the one that’s already available. They could spend too long deciding what to do.

Healthcare 52

Healthcare Government Airlines Systems 52

SQL Performance

SEPTEMBER 17, 2019

Technically, ReportServerTempDB can be recreated by a script in the event of a disaster, however Reporting Services cannot start without ReportServerTempDB. Disk latency for ReportServer and ReportServerTempDB are very important. DBAs are familiar with restoring databases, rather than hunting for a script to recreate the database.

Tuning 67

Tuning Servers Database Best Practices 67

Highly Scalable

AUGUST 20, 2013

At Grid Dynamics, we recently faced a necessity to build an in-stream data processing system that aimed to crunch about 8 billion events daily providing fault-tolerance and strict transactioanlity i.e. none of these events can be lost or duplicated. The signature is initially initialized by the event ID. Lineage Tracking.

Big Data 154

Big Data Processing Lambda Database 154

HammerDB

DECEMBER 5, 2020

For example HammerDB has not used tpmC terminology to report TPC-C based metrics instead using TPM and NOPM nomenclature. In the days before highly performant SSDs and persistent memory, database benchmarks had a significant challenge in comparing performance due to the available I/O performance.

C++ 40

C++ Benchmarking Virtualization Open Source 40

Dynatrace

JANUARY 31, 2024

At its core, data observability is about ensuring the availability, reliability, and quality of data. This freshness measurement can then be used by out-of-the-box Dynatrace anomaly detection to actively alert on abnormal changes within the data ingest latency to ensure the expected freshness of all the data records.

DevOps 192

DevOps Analytics Airlines Metrics 192

The Netflix TechBlog

JULY 26, 2021

From the moment a Netflix film or series is pitched and long before it becomes available on Netflix, it goes through many phases. Operational Reporting is a reporting paradigm specialized in covering high-resolution, low-latency data sets, serving detailed day-to-day activities¹ and processes of a business domain.

Big Data 253

Big Data Government Analytics Processing 253