Percona

SEPTEMBER 19, 2023

It looks like we succeeded, and I’m happy to announce that Percona Distribution for PostgreSQL 16 is now available! The effort has definitely paid off, as we can release shortly after upstream. To highlight some: Logical replication from standby servers is now supported natively by PostgreSQL.

Availability 129

Availability Open Source Database Servers 129

Dynatrace

NOVEMBER 24, 2021

All of this convenient visibility is available with just a few clicks. This helps significantly in automatically answering complex questions such as “ Is the CPU saturation of my F5 device caused by any of the virtual servers running on it? Virtual servers. Start monitoring in minutes. Pool nodes. Interfaces.

Network 246

Network Infrastructure Virtualization Metrics 246

Dynatrace

MAY 12, 2022

The title size of a tile has been moved from the dashboard definition to the dashboard metadata definition and included in the advanced settings UI for dashboards. General Availability (Build 1.241.153). General Availability (Build 1.241.153). Dashboards. Dynatrace API. Dynatrace API. Resolved issues. Resolved issues.

Tuning 246

Tuning Metrics Cloud Mobile 246

SQL Performance

MAY 24, 2022

Microsoft recently released the first public preview of SQL Server 2022. This clause is now available in Azure SQL Database and SQL Server 2022, provided you use database compatibility level 160 or higher. For example, the following query is valid since the window name definitions aren’t cyclic: SELECT 'This is valid'.

Servers 145

Servers C++ Code Database 145

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 246

Infrastructure Monitoring Virtualization Serverless 246

Percona

NOVEMBER 1, 2023

MySQL Server – Community Edition The problem applies to all versions of the upstream MySQL Community up to 8.0.23. Here is an example scenario you may end up here: mysql > select @@version,@@version_comment; + --+ + | @@version | @@version_comment | + --+ + | 5.7.43 | MySQL Community Server (GPL) | + --+ + 1 row in set (0.00

Servers 117

Servers Database Cache C++ 117

CSS Wizardry

DECEMBER 9, 2023

Always force HTTPS when it’s available. 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. Note that the BBC use schemeless URLs (i.e.

Speed 294

Speed Network Analytics Availability 294

The Netflix TechBlog

JULY 30, 2019

Adoption As of writing this blog, Conductor orchestrates 600+ workflow definitions owned by 50+ teams across Netflix. The task definition parameter rateLimitFrequencyInSeconds sets the duration window, while rateLimitPerFrequency defines the number of tasks that can be scheduled in a duration window.

Lambda 190

Lambda Media Open Source Metrics 190

Dynatrace

MAY 17, 2023

When software runs in a monolithic stack on on-site servers, observability is manageable enough. OpenTelemetry demo application: Distributed host/URL availability checker For our demo, we picked a web-based application whose core service is a distributed host/URL availability check.

Metrics 245

Metrics Open Source Traffic Cache 245

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. While many databases offer server-side compression, handling compression on the client side reduces expensive server CPU usage, network bandwidth, and disk I/O.

Latency 256

Latency Storage Cache Servers 256

The Netflix TechBlog

FEBRUARY 3, 2021

Instead, the schema gets generated at runtime based on definitions in code. Comprehensive documentation is available on the website but let’s walk through an example to show you how easy it is to use this framework. link] Full documentation for the framework is available on the DGS Framework github repository.

Open Source 246

Open Source Java Architecture Metrics 246

Dynatrace

NOVEMBER 3, 2021

Monitoring , by textbook definition, is the process of collecting, analyzing, and using information to track a program’s progress toward reaching its objectives and to guide management decisions. At the same time, metrics on a dashboard are showing resource exhaustion issues, such as lack of available memory.

Monitoring 264

Monitoring Metrics DevOps Scalability 264

Dynatrace

APRIL 21, 2022

If you still use the legacy version of Log Monitoring ( Log Monitoring v1 ), the Log Monitoring v1 documentation is still available, but we strongly encourage you to switch to the latest Dynatrace Log Monitoring version and gain direct access to the log content of all your mission-critical processes. General Availability (Build 1.239.178).

Azure 246

Azure Metrics AWS Monitoring 246

The Netflix TechBlog

AUGUST 22, 2019

Once the instance was available, the engineer would use a remote administration tool like RDP to login to the instance to install software and customize settings. The configuration file, referenced scripts, and artifact dependency definitions all live in an internal git repository.

DevOps 209

DevOps AWS Tuning Infrastructure 209

Dynatrace

AUGUST 12, 2019

With OneAgent installed on an application server, Davis, the Dynatrace AI causation engine, continuously analyzes all database statements within the context of your applications. With additional data from the database server, you’ll be able to resolve performance problems that are rooted deep in the database layer.

Database 161

Database Metrics Cache Servers 161

The Netflix TechBlog

FEBRUARY 14, 2025

These events are promptly relayed from the client side to our servers, entering a centralized event processing queue. This refined output is then structured using an Avro schema, establishing a definitive source of truth for Netflixs impression data. This queue ensures we are consistently capturing raw events from our global userbase.

Tuning 165

Tuning Latency Efficiency Analytics 165

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

NOVEMBER 4, 2019

By batching and parallelizing the requests to retrieve many creatives via a single query to the GraphQL server, we can optimize the index building process. At a minimum, we extract all of the type definitions from the GraphQL query and map them to a schema for Elasticsearch to use. The graph has two requirements. Search Indexer.

Database 243

Database Cache Servers Performance 243

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 138

Open Source Database Servers Scalability 138

Dynatrace

JULY 10, 2019

OneAgents are optimized to send data to the Dynatrace servers with the smallest possible impact, querying the metrics every minute, and the data is a first-class citizen for the Dynatrace AI root-cause analysis. Top tip: An easy way to do this is by creating a custom chart and looking for the metric there.

Java 197

Java Best Practices Metrics Azure 197

Scalegrid

JANUARY 20, 2020

It is not available for our in-memory database offerings like hosting for Redis™*. If your application passes on the test dataset, it is definitely fit to deploy in production! Here are the two options we typically suggest: If the analytics job is running on the primary/master server, move it to a secondary/replica server.

Analytics 185

Analytics Database Storage Testing 185

SQL Performance

JULY 19, 2022

The simplest definition of a log record: it describes a single change to a database. You can read a bit more about rollbacks in my article A Complete Introduction to SQL Server Transactions on the SentryOne blog, and I’ll cover them in depth in the next article. What Are Log Records? Log Record Types.

Servers 94

Servers Database Storage Engineering 94

Dynatrace

MAY 28, 2020

Keptn uses SLO definitions to automatically configure Dynatrace or Prometheus alerting rules. If you have a distributed environment with multiple servers hosting your webservers, app servers, and database, I suggest you install the OneAgent on all these servers to get full end-to-end visibility.

Engineering 270

Engineering Performance Metrics Best Practices 270

Dynatrace

APRIL 8, 2020

It prevents your application from fully leveraging the available CPU. This resource is not available to your application. . Even though there’s more CPU capacity available, your application can no longer make use of it. Frequent garbage collection : This is triggered by the creation of a lot of objects.

Speed 201

Speed Code Java Lambda 201

The Netflix TechBlog

OCTOBER 7, 2021

However, Netflix is available for streaming on thousands of types of devices and it is powered by hundreds of micro-services which are deployed independently, making it extremely challenging to comprehensively test internally. Additionally, this gets us closer to consistent metric definitions in both realtime and offline systems.

Metrics 202

Metrics Mobile Testing Strategy 202

KeyCDN

FEBRUARY 4, 2021

This query is performed by a Domain Name Server (DNS server) or servers nearby that have been assigned responsibility for that hostname. You can think of a DNS server as a phone book for the internet. A DNS server maintains a directory of domain names and translates them to IPs. So DNS services definitely go down!

Cache 134

Cache Website Internet Internet 134

Percona

MARCH 23, 2023

When it comes to enterprise-level databases, there are several options available in the market, but PostgreSQL stands out as one of the most popular and reliable choices. PostgreSQL supports sharding, which allows data to be distributed across multiple servers, making it ideal for high-traffic websites and applications.

Database 138

Database Open Source Traffic Small Business 138

Dynatrace

OCTOBER 23, 2020

The shortest possible time to value offered by Dynatrace is one of the most important reasons that our customers select Dynatrace over other monitoring solutions available on the market. The Ansible OneAgent collection is available from two primary sources: Directly from Dynatrace. Dynatrace news. From the Ansible Galaxy repository.

Tuning 141

Tuning Monitoring Availability Architecture 141

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 106

Cache Servers Best Practices Code 106

All Things Distributed

DECEMBER 1, 2016

Today, we're making available broad new services which that let builders prepare and operate their applications more quickly and efficiently, and respond to changes in both their business and their operating environment, swiftly. We launched the following new services and features today to help.

AWS 136

AWS Development Lambda Open Source 136

Percona

APRIL 4, 2023

” While this is definitely a valid use case, I hadn’t personally come across an issue in the wild where the application fix wasn’t trivial. To quickly set up the environment, ProxySQL was installed locally on the host running pt-archiver and set up with a single backend (the target testbed server).

Open Source 130

Open Source Servers Engineering Testing 130

Scalegrid

JUNE 14, 2024

Understanding Power BI Definition and Purpose Power BI is a business analytics service that can gather all your data in a single platform and enable users to analyze and visualize easily. Selecting MySQL as the Data Source Click on the “Get Data” button and choose MySQL database as the data source from the available options.

Database 130

Database Azure Efficiency Servers 130

Percona

MARCH 27, 2023

On MySQL and Percona Server for MySQL , there is a schema called information_schema (I_S) which provides information about database tables, views, indexes, and more. The same tests have been executed in Percona Server for MySQL 5.7 Results for Percona Server for MySQL 5.7 Results for Percona Server for MySQL 5.7

Cache 124

Cache Hardware Servers Benchmarking 124

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

Scalegrid

APRIL 5, 2024

It offers automatic data sharding, master-replica configurations for high availability, and a scalable and flexible architecture to maintain consistent performance. Sharding in Redis involves dividing data across multiple machines to enhance scalability and maintain availability. What is Redis Sharding? How Does Redis Sharding Work?

Scalability 130

Scalability Java Efficiency Database 130

SQL Performance

JULY 14, 2021

When you create a view, SQL Server records metadata information in a number of catalog objects. It records some general information, which you can query via sys.views, the view definition which you can query via sys.sql_modules, column information which you can query via sys.columns, and more information is available through other objects.

Code 117

Code Servers Database Availability 117

Percona

NOVEMBER 7, 2023

The book PostgreSQL 14 Internals has been available in PDF format for quite a while, but recently, the ability to order a printed copy became available ( [link] ). This 548-page tome from PostgresPro covers the spectrum from data organization to details on the many available indexing options.

Cache 113

Cache Servers Operating System Database 113