The Netflix TechBlog

OCTOBER 14, 2024

Naturally, you would think that there must be something wrong with the code running in it. the ipykernel process) of the jupyter-lab server process , which means the main event loop being injected by pystan is that of the ipykernel process, not the jupyter-server process. Start N processes where N is the number of CPUs.

Latency 211

Latency Virtualization Traffic Processing 211

DZone

JANUARY 29, 2021

It is mainly the channel that links the client to the server, drives business procedures, and gives the services which give worth to users. Application Programming Interface acts as the center level between the database and presentation layer in the software development procedure.

Testing 214

Testing Programming Performance Database 214

Dynatrace

FEBRUARY 14, 2022

Without any coding, these extensions make it easy to ingest data from these technologies and provide tailor-made analysis views and zero-config alerting. Multiple Prometheus servers might be required, creating significant maintenance efforts. Topology definition and entity extraction rules. Customizable dashboard.

Technology 229

Technology Technology Metrics Infrastructure 229

Dynatrace

MAY 17, 2023

When software runs in a monolithic stack on on-site servers, observability is manageable enough. While classic logging is an essential tool in debugging issues, it often lacks context and only provides snapshot information of one specific location in your code/application. Those are prime candidates for their own spans.

Metrics 193

Metrics Open Source Traffic Cache 193

Dynatrace

JULY 11, 2023

IBM Power servers enable customers to respond faster to business demands, protect data from core to cloud, and streamline insights and automation. It also detects new containers and injects OneAgent code modules into application pods. Dynatrace webhook server validates Dynakube definitions for correctness.

Architecture 178

Architecture Availability Infrastructure Monitoring 178

Scalegrid

FEBRUARY 15, 2024

Each section is crafted to elevate your database’s security protocol, from acquiring the necessary SSL certificates to configuring server and client connections. Preparing SSL Certificates for MongoDB The SSL certificates are necessary for our MongoDB server to establish secure SSL/TLS communications.

Servers 130

Servers Best Practices Government Network 130

SQL Performance

AUGUST 2, 2019

I have been making the same recommendations about tempdb since I started working with SQL Server over 15 years ago, when I was working with customers running version 2000. From the customer side, this has been the limit of what can be done*, until SQL Server 2019. I have SQL Server 2019 CTP 3.2 Now that 2019 CTP 3.2

Servers 95

Servers C++ Testing Systems 95

The Netflix TechBlog

FEBRUARY 3, 2021

There are two different approaches to GraphQL development; schema-first and code-first development. The code in your service only implements this schema. With code-first development , you don’t have a schema file. Instead, the schema gets generated at runtime based on definitions in code.

Open Source 246

Open Source Java Architecture Metrics 246

Percona

APRIL 4, 2023

Those are a lot more common and may be in your table definitions, so your upgrade process will be harder. If you try to use a reserved word, the server will not explicitly admonish you that you are trying to use a reserved word. Instead, the server informs you that you have a syntax error. Yes, there is a workaround.

Open Source 121

Open Source Database Servers Scalability 121

CSS Wizardry

DECEMBER 9, 2023

All code examples are complete and correct. Connection overhead isn’t huge , but too many preconnect s that either a) aren’t critical, or b) don’t get used at all, is definitely wasteful. Further, opening and persisting connections has a CPU overhead on both the client and the server. When to Use crossorigin Okay.

Speed 256

Speed Network Analytics Availability 256

Sutter's Mill

MARCH 11, 2024

Many of the most damaging recent security breaches happened to code written in MSLs (e.g., recommend using instead of C++ ( example ), so by definition addressing these four would address the immediate NIST/NSA/CISA/etc. We can and do write “good” code and secure applications in C++. issues with C++.

C++ 141

C++ Programming Code Java 141

Dynatrace

NOVEMBER 2, 2020

IT infrastructure is the heart of your digital business and connects every area – physical and virtual servers, storage, databases, networks, cloud services. This shift requires infrastructure monitoring to ensure all your components work together across applications, operating systems, storage, servers, virtualization, and more.

Infrastructure 214

Infrastructure Monitoring Virtualization Serverless 214

Randon ASCII

AUGUST 30, 2020

Sometimes tracking down a bug is as simple as paying attention to server dashboards, spending a few minutes in a profiler, or looking at compiler warnings. Server CPU Surprise. A few years ago I spent a few weeks doing some memory investigations on live game servers. The first server process that I profiled was… odd.

Games 142

Games Servers Code Monitoring 142

SQL Performance

SEPTEMBER 8, 2021

Use the following code to create these tables in tempdb and populate them with some initial sample data: USE tempdb ; GO. To understand the circumstances where you would want to use the CHECK OPTION as part of a view’s definition, we’ll first examine what can happen when you don’t use it. Sample Data. DROP TABLE IF EXISTS dbo.

Servers 130

Servers Code Engineering Database 130

SQL Performance

JULY 14, 2021

The code that I’ll be using in this article can be executed in any database, but in my demos, I’ll be using TSQLV5—the same sample database that I used in previous articles. Use the following code to create a table called dbo.T1, and a view called dbo.V1 Use the following code to query the view: SELECT * FROM dbo. sql_modules.

Code 117

Code Servers Database Availability 117

Percona

SEPTEMBER 6, 2023

Definitions The examples below use MySQL, but it is helpful to check their competition’s documentation to help explain what a functional index is. MySQL’s definition is a little more convoluted, stating that in MySQL versions 8.0.13 Well, there is always a drawback to having the server do something complicated for you.

Speed 87

Speed Virtualization Storage Open Source 87

The Netflix TechBlog

AUGUST 22, 2019

We had several goals in mind when trying to improve the baking methodology: Configuration as code Leverage Spinnaker for Continuous Delivery Eliminate Toil Configuration as Code The first part of our new Windows baking solution is Packer. We now have the software and instance configuration as code.

DevOps 209

DevOps AWS Tuning Infrastructure 209

Percona

NOVEMBER 7, 2023

The illustrations are clear, and there are many reference pointers to the documentation or source code where needed. If you are new to the internals of PostgreSQL, this book, along with the source code and some caffeine, should give you a great start on the subject. This is a great tool for learning the intricacies of PostgreSQL.

Cache 92

Cache Servers Operating System Database 92

Percona

APRIL 12, 2023

Whereas many open source software offerings — like the community version of MySQL — use the GNU General Public License ( GPL ), MongoDB has been under the GNU Affero General Public License ( AGPL ) and more recently under the Server Side Public License ( SSPL ), introduced by MongoDB itself. looking out for MongoDB Inc.

Open Source 86

Open Source Programming Database Servers 86

Smashing Magazine

AUGUST 31, 2021

This file is rendered on the server and is not re-rendered on the client. Use it for <Provider> s, global definitions, application settings, and so on. Every time a new route is visited, our pages can tap into the AppStateContext and have their definitions passed down as props. Creating A Hierarchy Amongst Routes.

Cache 104

Cache Servers Best Practices Code 104

The Netflix TechBlog

JUNE 13, 2023

Migrating Critical Traffic At Scale with No Downtime — Part 2 Shyam Gala , Javier Fernandez-Ivern , Anup Rokkam Pratap , Devang Shah Picture yourself enthralled by the latest episode of your beloved Netflix series, delighting in an uninterrupted, high-definition streaming experience.

Traffic 282

Traffic Metrics Systems Strategy 282

VoltDB

MARCH 22, 2024

With a clearly defined API, you can establish a set of rules that outsiders need to follow if they wish to use your code. But now there are technologies like OpenAPI and Swagger, which allow you to define an API in a standard way in considerable detail — enough detail, in fact, to generate the code for it programmatically.

Java 52

Java Latency Servers Code 52

Smashing Magazine

JULY 18, 2022

If you think that static rendering is limited to generic, public content that is the same for every user of your website, you should definitely read this article. Segmented Rendering is a new pattern for the Jamstack that lets you personalize content statically, without any sort of client-side rendering or per-request Server-Side Rendering.

Cache 118

Cache Website Servers Energy 118

SQL Performance

AUGUST 27, 2019

On August 7, 2019, AMD finally unveiled their new 7nm EPYC 7002 Series of server processors, formerly code-named "Rome" at the AMD EPYC Horizon Event in San Francisco. This is the second generation EPYC server processor that uses the same Zen 2 architecture as the AMD Ryzen 3000 Series desktop processors.

Servers 52

Servers Benchmarking Virtualization Architecture 52

The Netflix TechBlog

FEBRUARY 9, 2021

The API server orchestrates backend systems to authenticate the user. Upon successful authentication of the claims provided, the API server sends a cookie response back upstream, including the customerId (a Long), the ESN (a String) and an expiration directive. Zuul redirects the user call to the API /login endpoint.

Architecture 226

Architecture Latency Servers Website 226

SQL Performance

FEBRUARY 10, 2021

Here’s the code to create the dummy table: DROP TABLE IF EXISTS dbo. BatchMe ( col1 INT NOT NULL , INDEX idx_cs CLUSTERED COLUMNSTORE ) ; And here’s the code with the definition of the dbo.GetNumsAlanCharlieItzikBatch function: CREATE OR ALTER FUNCTION dbo. It took this code 1:04 minutes to complete on my machine.

C++ 124

C++ Servers Testing Code 124

Percona

AUGUST 30, 2023

If a PostgreSQL user wants to change these values, they need to recompile the PostgreSQL from the source code. The most common parameter used by the PostgreSQL server (postmaster) will be PGDATA, which sets the parameter data_directory. But changing this is possible only at the server startup. 20150623 (Red Hat 4.8.5-44),

Database 107

Database Servers Open Source Tuning 107

Testsigma

APRIL 4, 2022

Let’s look at the definition of quality to see how test automation isn’t quality assurance. One of the popular definitions of Quality is that it is “value” to someone “who” matters. Any fool can write code that a computer can understand. Good programmers write code that humans can understand.”. Martin Fowler.

Testing 95

Testing Open Source IoT Programming 95

SQL Performance

APRIL 14, 2021

Here’s the function’s definition: -- Helper dummy table. BatchMe ( col1 INT NOT NULL , INDEX idx_cs CLUSTERED COLUMNSTORE ) ; GO. -- Function definition. Use the following code to test the function with the variable assignment technique: DECLARE @n AS BIGINT ; SELECT @n = n FROM dbo. DROP TABLE IF EXISTS dbo.

C++ 112

C++ Servers Testing Code 112

SQL Performance

MAY 13, 2020

I just wanted to mention some use cases here to illustrate how important table expressions are in our T-SQL code, and why it's worthwhile to invest in understanding their fundamentals well. Here's the standard's definition for derived tables in the general sense: 4.15.3 In my examples I'll use a sample database called TSQLV5.

C++ 143

C++ Code Design Servers 143

Brendan Gregg

APRIL 8, 2022

In this case there's an orange tower (kernel code) that's unusual. At Netflix, 10% of CPU time somewhere unexpected can be a large costly issue across thousands of server instances. of CPU, so it definitely was, and madvise() was calling zap_page_range() that was calling the faults. The cause I've highlighted here.

Performance 89

Performance Virtualization Code Servers 89

SQL Performance

JANUARY 22, 2020

Table-valued parameters have been around since SQL Server 2008 and provide a useful mechanism for sending multiple rows of data to SQL Server, brought together as a single parameterized call. The DataTable can be created multiple ways in the.NET code, but a common way to create the table is something like the following: System.

Servers 55

Servers Azure Hardware Network 55

High Scalability

FEBRUARY 1, 2022

SysOps Enginee r: As Kinsta ’s SysOps Engineer, you’ll play a key role in caring for the health of our servers, preventing issues, and responding immediately to mitigate any problems in our infrastructure. We believe the only way to maintain and scale our standards is to focus on quality code. Get started for free!

Education 100

Education DevOps Infrastructure Scalability 100

High Scalability

MAY 4, 2022

SysOps Enginee r: As Kinsta ’s SysOps Engineer, you’ll play a key role in caring for the health of our servers, preventing issues, and responding immediately to mitigate any problems in our infrastructure. We believe the only way to maintain and scale our standards is to focus on quality code. Get started for free!

Education 100

Education DevOps Infrastructure Scalability 100

High Scalability

AUGUST 24, 2021

SysOps Enginee r: As Kinsta ’s SysOps Engineer, you’ll play a key role in caring for the health of our servers, preventing issues, and responding immediately to mitigate any problems in our infrastructure. We believe the only way to maintain and scale our standards is to focus on quality code. Get started for free!

Education 100

Education DevOps Infrastructure Benchmarking 100

SQL Performance

AUGUST 12, 2020

You can find it in the documentation of Microsoft SQL Server and Azure SQL Database. T-SQL supports it starting with SQL Server 2005. What’s different about the design of CTEs compared to derived tables is where in the code these three elements are located. It uses the term with list element to represent what T-SQL calls a CTE.

C++ 140

C++ Code Design Database 140

High Scalability

JULY 18, 2022

SysOps Enginee r: As Kinsta ’s SysOps Engineer, you’ll play a key role in caring for the health of our servers, preventing issues, and responding immediately to mitigate any problems in our infrastructure. We believe the only way to maintain and scale our standards is to focus on quality code. Get started for free!

Education 100

Education DevOps Infrastructure Scalability 100