The Netflix TechBlog

DECEMBER 3, 2019

We heard many stories about difficulties related to data access and basic data processing. The infrastructure should allow them to exercise their freedom as data scientists but it should provide enough guardrails and scaffolding, so they don’t have to worry about software architecture too much. Metaflow removes this cognitive overhead.

Open Source 239

Open Source AWS Infrastructure Energy 239

Dynatrace

MARCH 16, 2021

When it comes to DevOps best practices, practitioners need ways to automate processes and make their day-to-day tasks more efficient. It has now become a parallel exercise in the same CLI. And if you’re not an existing Dynatrace user, we encourage you to spin up a free trial and test drive the integration for yourself.

Code 245

Code Monitoring Best Practices Infrastructure 245

The Netflix TechBlog

SEPTEMBER 8, 2020

Migration Testing Infrastructure Our monolith had been around for many years and hadn’t been created with functional and unit testing in mind, so those were independently bolted on by each UI team. For the migration, testing was a first-class citizen. Replay Testing Enter replay testing.

Latency 243

Latency Cache Java Traffic 243

Dynatrace

JUNE 1, 2023

Response time Response time refers to the total time it takes for a system to process a request or complete an operation. This ensures that customers can quickly navigate through product listings, add items to their cart, and complete the checkout process without experiencing noticeable delays. or above for the checkout process.

Latency 189

Latency Website Traffic Virtualization 189

Dynatrace

DECEMBER 5, 2023

The SEC cybersecurity mandate states that starting December 15 th , all public organizations are required to annually describe their processes for assessing, identifying, and managing material risks from any cybersecurity threats on a Form 10-K. Additionally, ensure they are aware of each of their roles and responsibility during the process.

Best Practices 263

Best Practices Government C++ Education 263

Dynatrace

DECEMBER 10, 2020

I recently joined two industry veterans and Dynatrace partners, Syed Husain of Orasi and Paul Bruce of Neotys as panelists to discuss how performance engineering and test strategies have evolved as it pertains to customer experience. Rethinking the process means digital transformation. Dynatrace news.

Strategy 190

Strategy Performance Logistics Monitoring 190

Dynatrace

JUNE 27, 2022

These development and testing practices ensure the performance of critical applications and resources to deliver loyalty-building user experiences. Real user monitoring (RUM) is a performance monitoring process that collects detailed data about users’ interactions with an application. What is real user monitoring?

Best Practices 186

Best Practices Monitoring Wireless Traffic 186

Dynatrace

APRIL 14, 2020

Across the two days, there were sixteen new sessions – delivered for the first time – based on content derived from lab exercises developed and delivered by working with Dynatrace experts and our Partner communicate to showcase Dynatrace’s newest features. You can see a similar automation process on this GitHub repo.

AWS 171

AWS Lambda Performance Infrastructure 171

Dynatrace

JUNE 1, 2023

Response time Response time refers to the total time it takes for a system to process a request or complete an operation. This ensures that customers can quickly navigate through product listings, add items to their cart, and complete the checkout process without experiencing noticeable delays. or above for the checkout process.

Traffic 173

Traffic Website Latency Virtualization 173

Dynatrace

MAY 28, 2020

While Google’s SRE Handbook mostly focuses on the production use case for SLIs/SLOs, Keptn is “Shifting-Left” this approach and using SLIs/SLOs to enforce Quality Gates as part of your progressive delivery process. The app description and supporting files such as load testing scripts are on the Keptn Example GitHub.

Engineering 200

Engineering Performance Metrics Best Practices 200

Dynatrace

MARCH 22, 2021

Many organizations already employ DevOps, an approach to developing software that combines development and operations in a continuous cycle to build, test, release, and refine software in an efficient feedback loop. Traditionally, application security testing sits as a discrete stage between development and operations.

DevOps 162

DevOps Speed Infrastructure Software 162

Dynatrace

APRIL 21, 2022

Figure 1 – Individual Host pages show performance metrics, problem history, event history, and related processes for each host. Right-sizing is an iterative process where you adjust the size of your resource to optimize for cost. To do that, organizations must evolve their DevOps and IT Service Management (ITSM) processes.

Azure 201

Azure Monitoring Virtualization Metrics 201

Dynatrace

SEPTEMBER 30, 2021

Hosted and moderated by Amazon, AWS GameDay is a hands-on, collaborative, gamified learning exercise for applying AWS services and cloud skills to real-world scenarios. Take a trial test at Linux Academy if it’s applicable to the cert you have in mind. Machine learning. Keep your AWS certifications fresh.

AWS 222

AWS Best Practices Cloud Analytics 222

The Netflix TechBlog

DECEMBER 3, 2019

We heard many stories about difficulties related to data access and basic data processing. The infrastructure should allow them to exercise their freedom as data scientists but it should provide enough guardrails and scaffolding, so they don’t have to worry about software architecture too much. Metaflow removes this cognitive overhead.

Open Source 135

Open Source AWS Infrastructure Energy 135

Dynatrace

SEPTEMBER 20, 2019

Here’s what we discussed so far: In Part 1 we explored how DevOps teams can prevent a process crash from taking down services across an organization. In doing so, they automate build processes to speed up delivery, and minimize human involvement to prevent error. Both use the same database back-end and app configuration.

Systems 27

Systems Traffic DevOps Database 27

O'Reilly

OCTOBER 19, 2021

While there isn’t an authoritative definition for the term, it shares its ethos with its predecessor, the DevOps movement in software engineering: by adopting well-defined processes, modern tooling, and automated workflows, we can streamline the process of moving from development to robust production deployments. Who did what and when?

DevOps 140

DevOps Software Engineering Infrastructure Open Source 140

The Netflix TechBlog

OCTOBER 14, 2021

The end result is the first major update to BetterTLS since its first release : a new suite of tests to exercise TLS implementations’ certificate path building. As service owners, having test suites that can answer these questions can guide decision making. What is Certificate Path Building?

Servers 174

Servers Testing Best Practices Java 174

Particular Software

SEPTEMBER 11, 2023

Technically, this is all done over MSMQ where requests are processed and eventually granted or rejected, notifying other services of the outcome. Instead, a more gradual process can be used, moving one endpoint at a time from MSMQ to the cloud, with the bridge transparently taking care of the routing.

Cloud 126

Cloud Systems Azure Airlines 126

SQL Performance

APRIL 14, 2021

I’ll do my testing in tempdb, enabling I/O and time statistics: SET NOCOUNT ON ; USE tempdb ; SET STATISTICS TIME , IO ON ; Limitations of earlier ideas. Evaluating earlier solutions, one of the important factors in getting good performance was the ability to employ batch processing. This article is dedicated to Paul’s solution.

C++ 112

C++ Servers Testing Code 112

The Morning Paper

NOVEMBER 3, 2019

On the exact same hardware, the benchmark suite is then used to test 36 Linux release versions from 3.0 Testing against real-world workloads (Redis, Apache, Nginx), disabling the 11 root causes results in maximum performance improvements in these three applications of 56%, 33%, and 34% respectively. Headline results.

Performance 108

Performance Benchmarking Tuning Hardware 108

The Morning Paper

MARCH 15, 2020

In contrast, a process suffering a total failure can be quickly identified, restarted, or repaired by existing mechanisms, thus limiting the failure impact. 71% of failures are triggered by a specific environment condition, input, or faults in other processes. In 13% of cases a module became a zombie with undefined failure semantics.

Systems 98

Systems Software Software Programming 98

Smashing Magazine

AUGUST 19, 2021

Ethics are an important part of human-computer interaction because they keep people at the heart of the design process. For example, try and recall the last time your team’s processes were audited for compliance against the company’s ethical standards. As UX practitioners, we know empathy is an important part of the design process.

Code 139

Code Design Education Government 139

The Netflix TechBlog

MAY 27, 2020

From failure injection testing to regularly exercising our region evacuation abilities, Netflix engineers invest a lot in ensuring the services that comprise Netflix are robust and reliable. This process includes a write-up of what happened, what mitigations took place, and what follow-up work was discussed.

Engineering 106

Engineering Innovation Systems Architecture 106

Testsigma

JANUARY 6, 2022

So, we thought of sharing some tips and tricks with the testing community that is working from home, aiming to improve their working experience overall. This is critical since even if a small detail is missed the results can be catastrophic from a testing perspective. Tracking the processes to plan better.

Testing 52

Testing Internet Internet Testing Tools 52

O'Reilly

JANUARY 17, 2023

You might say that the outcome of this exercise is a performant predictive model. Second, this exercise in model-building was … rather tedious? If you’re a professional data scientist, you already have the knowledge and skills to test these models. That’s sort of true. Get your results in a few hours.

Tuning 132

Tuning Open Source Software Software 132

Percona

AUGUST 30, 2023

This can be changed later using the pg_checksums utility, but that will be a painful exercise on a big database. A change to such parameters requires the postmaster — the main process of the PostgreSQL — to restart. Here is an example of the function definition to test the function-level settings.

Database 109

Database Servers Open Source Tuning 109

SQL Performance

OCTOBER 20, 2022

The engine processes the row through parent operators before releasing the shared lock prior to locking and reading the next row. When the engine chooses page-level locking granularity, it takes and holds a shared page lock while processing rows on the current page and then releases the lock right before acquiring a lock on the next page.

Testing 91

Testing Servers Cache Engineering 91

O'Reilly

DECEMBER 12, 2023

This ruling in itself raises many questions: how much creativity is needed, and is that the same kind of creativity that an artist exercises with a paintbrush? But reading texts has been part of the human learning process as long as reading has existed; and, while we pay to buy books, we don’t pay to learn from them.

Artificial Intelligence 103

Artificial Intelligence Media Google Processing 103

Alex Russell

FEBRUARY 21, 2023

is astonishingly dense with delayed features, inadvertantly emphasising just how far behind WebKit has remained for many years and how effective the Blink Launch Process has been in allowing Chromium to ship responsibly while consensus was witheld in standards by Apple. Regardless, Safari 16.4 31st : Web Share changes Feb. Safari 16.4

Energy 90

Energy Games Engineering Design 90

O'Reilly

JUNE 13, 2023

It also generated a short program that implemented the widely used Miller-Rabin primality test. Specifically, I was compelled to re-try my prime test. It didn’t generate any code, but provided a link to the Wolfram Alpha result page that described how to test for primality.

Google 85

Google Programming Database Testing 85

Smashing Magazine

JULY 22, 2021

Exercise/outdoors. Of course, the last thing we want is another tool in the shed to manage, and Trafft has done a very clever job in automating much of the process including taking payments, managing services, and invoicing clients. Let’s now take a look at a breakdown on how our day is being spent at work: Category. Cooking/Eating.

Games 129

Games Availability Software Software 129

Adrian Cockcroft

MARCH 17, 2020

There are many possible failure modes, and each exercises a different aspect of resilience. Staff should be familiar with recovery processes and the behavior of the system when it’s working hard to mitigate failures. Memorial at Hawaiian native burial ground, Kapalua, Maui. Book: Engineering a Safer World by Nancy G.

Healthcare 52

Healthcare Government Airlines Systems 52

Particular Software

MARCH 28, 2022

With a saga, a business process that would otherwise have been implemented as a clunky batch job 1 can be built in a much more elegant and real-time manner. Saga scenario testing While we were making it easier to write sagas, we thought it was also essential to make it easier to test them.

Development 52

Development C++ Virtualization Metrics 52

The Agile Manager

OCTOBER 31, 2020

Some years ago, I was working with a company automating its customer contract renewal process. This was no small task given the mismatch between a fine granularity of rules on the one hand and a coarse granularity of test cases on the other. The day I joined, the team reported 70 test scripts executed, of which 5 passed and 6 failed.

Programming 59

Programming Testing Code Technology 59

Percona

JULY 6, 2023

then true else false end FROM generate_series(1, 10000000); Now we have our test table with some dummy data so we can practice. then true else false end FROM generate_series(1, 10000000); Now we have our test table with some dummy data so we can practice. Next is the table definition.

Best Practices 96

Best Practices Tuning Testing Database 96

Smashing Magazine

AUGUST 5, 2021

When large parts of the interface are disabled , most customers will assume that the system is busy , and some process is happening in the background on the page. And because something is happening, they usually exercise a good amount of patience first. The Downsides Of Disabled Buttons. Disabled buttons don’t explain what’s wrong.

Design 145

Design Transportation Code Systems 145

The Morning Paper

JULY 4, 2019

The ‘controlled’ part is important here because given the scale and complexity of the environment under test, the only meaningful place to do this is in production with real users. a bug fix, configuration change, new feature, or A/B test). Netflix’s system is deployed on the public cloud as complex set of interacting microservices.

Latency 77

Latency Engineering Metrics Traffic 77