Adrian Cockcroft

APRIL 18, 2018

Juvenal Photo taken in Lisbon Portugal by Adrian Cockcroft The documentation for most monitoring tools describes how to use that tool in isolation, often as if no other tools exist, but sometimes with ways to import or export some of the data to other tools. What if your monitoring systems fail? “Quis custodiet ipsos custodes?”?—?Juvenal

Monitoring 40

Monitoring Systems Virtualization Metrics 40

Percona

JUNE 22, 2023

Defining high availability In general terms, high availability refers to the continuous operation of a system with little to no interruption to end users in the event of hardware or software failures, power outages, or other disruptions. Load balancers can detect when a component is not responding and put traffic redirection in motion.

Availability 112

Availability Database Open Source Hardware 112

Particular Software

AUGUST 16, 2021

which provides saga and outbox storage for NServiceBus endpoints that is transactionally consistent with the business data you store in Cosmos DB. Under the hood, each “record” in Cosmos DB is a JSON document with an ID and partition key that, together, define its globally unique ID. Now that it has reached version 1.0,

Azure 52

Azure Serverless Storage Database 52

Percona

MAY 15, 2023

The main reason behind this is that MySQL is a relational database system (RDBMS), and any data that is going to be written in it must respect the RDBMS rules. As well, very few cases are in need to have a full system/solution to provide scalability with sharding. I will eventually increase them if I see the need.

Traffic 128

Traffic Scalability Database Servers 128

Percona

JULY 7, 2023

Also, in general terms, a high availability PostgreSQL solution must cover four key areas: Infrastructure: This is the physical or virtual hardware database systems rely on to run. Being a more advanced database management system, PostgreSQL is well-suited for performing complex queries in a large environment quickly.

Availability 88

Availability Open Source Architecture Database 88

Percona

APRIL 17, 2023

In this blog post, we will discuss the best practices on the MongoDB ecosystem applied at the Operating System (OS) and MongoDB levels. Operating System (OS) settings Swappiness Swappiness is a Linux kernel setting that influences the behavior of the Virtual Memory manager when it needs to allocate a swap, ranging from 0-100.

Best Practices 52

Best Practices Design Tuning Database 52

Smashing Magazine

JUNE 25, 2020

We’ll also discuss the costs and benefits of CDNs and dedicated file storage solutions. Any file uploaded by a user, from profile pictures to personal documents, is called a media file. This strategy is very simple and closely resembles the development environment, but cannot handle large or inconsistent amounts of traffic effectively.

Media 69

Media Cache Storage AWS 69

Enprowess

JANUARY 12, 2022

According to Ericsson’s analysis, international mobile data traffic is projected to become 4.5 Other benefits: It has other benefits like a Quicker launch to the market, Easier distribution, saving device power and storage, seamless maintenance, and updating. IoT tracking systems. Famous PWA Use Examples. Smart cities.

Blockchain 59

Blockchain IoT Development Serverless 59

SQL Server According to Bob

DECEMBER 18, 2018

SQL Server relies on Forced-Unit-Access (Fua) I/O subsystem capabilities to provide data durability, detailed in the following documents: SQL Server 2000 I/O Basic and SQL Server I/O Basics, Chapter 2. Durability: “In database systems , durability is the ACID property which guarantees transactions that have committed will survive permanently.

Servers 90

Servers Media Cache Storage 90

Alex Russell

JULY 14, 2021

Meanwhile, on Android, the #2 and #3 sources of web traffic do not respect browser choice. The predominant desktop situation is relatively straightforward: Browsers handle links, and non-browsers defer loading http and https URLs to the system, which in turn invokes the default browser. The Baseline Scenario #. But neither has to be.

Google 121

Google Mobile Engineering Internet 121

Official Blog - World Web Technology

MAY 12, 2023

It was a content management system first and today, WordPress has no boundaries. The front-end of the website is what you see and interact on the display on the screen and the backend is the logical part of the app that has components such as storage, coding, content management, etc. It is the backend where actual things happen.

Website 52

Website Development Scalability Architecture 52

All Things Distributed

JANUARY 18, 2012

Werner Vogels weblog on building scalable and robust distributed systems. The original Dynamo design was based on a core set of strong distributed systems principles resulting in an ultra-scalable and highly reliable database system. All Things Distributed. Amazon DynamoDB â?? By Werner Vogels on 18 January 2012 07:00 AM.

Scalability 167

Scalability Database Ecommerce Latency 167

O'Reilly

NOVEMBER 12, 2019

Rather than buying racks and racks of servers that need to handle the maximum potential traffic and be idle most of the time, it seems that serverless’ method of paying by compute is proving to be beneficial to the bottom lines of organizations. When asked about the benefits of adopting serverless, there were some stand-out issues.

Serverless 88

Serverless Architecture FinTech Infrastructure 88

IO River

NOVEMBER 2, 2023

‍AutomationCode-based systems also shine in automation. Whether you're scaling storage solutions like S3 buckets, compute resources like EKS clusters, or content delivery mechanisms via CDNs, Terraform offers a streamlined approach. This level of granularity is not found in UI-managed systems. ‍What Happened Two Weeks Ago?‍Earlier

Open Source 52

Open Source DevOps AWS Azure 52

IO River

NOVEMBER 2, 2023

This level of granularity is not found in UI-managed systems. AutomationCode-based systems also shine in automation. Whether you're scaling storage solutions like S3 buckets, compute resources like EKS clusters, or content delivery mechanisms via CDNs, Terraform offers a streamlined approach.

Open Source 40

Open Source DevOps AWS Azure 40

Dynatrace

AUGUST 5, 2019

Resource consumption & traffic analysis. What is the network traffic going to be between services we migrate and those that have to stay in the current data center? How much traffic is sent between two processes hosting a certain service? Step 3: Detailed Traffic Dependency Analysis. What’s in your stack?”.

Cloud 31

Cloud Traffic Database Network 31

The Netflix TechBlog

MAY 14, 2021

However, they are scattered across multiple systems, and there isn’t an easy way to tie related messages together. You’re joining tables, resolving status types, cross-referencing data manually with other systems, and by the end of it all you ask yourself why? Things got hairy.

Traffic 160

Traffic Latency Java Google 160

All Things Distributed

APRIL 5, 2012

Werner Vogels weblog on building scalable and robust distributed systems. Large Seasonal Peaks – Our largest community supports TurboTax where the peak traffic during February or April is often 100s of times greater than a quiet day in June. All Things Distributed. By Werner Vogels on 06 April 2012 06:00 AM. Comments ().

Innovation 146

Innovation AWS Education Network 146

Brendan Gregg

SEPTEMBER 5, 2017

What follows are topics that may be of interest to anyone looking to migrate their systems and skillset: scan these to find topics that interest you. ## ZFS ZFS is available for Linux via the [zfsonlinux] and [OpenZFS] projects, and more recently was included in Canonical's Ubuntu Linux distribution: Ubuntu Xenial 16.04 LTS (April 2016).

Virtualization 76

Virtualization AWS Engineering Hardware 76

O'Reilly

DECEMBER 2, 2019

I don’t need more bandwidth for video conferences or movies, but I would like to be able to download operating system updates and other large items in seconds rather than minutes. What would the world look like if all of our storage was in the cloud, and access to that storage was so fast we didn’t care?

Wireless 53

Wireless Serverless IoT Artificial Intelligence 53

Smashing Magazine

DECEMBER 23, 2020

IndexedDB is an in-browser NoSQL storage system that you can use to cache and retrieve the required data to make your PWA work offline. PWAs can be mighty powerful for increasing your site’s traffic and expanding on user experience. Let’s look at each one. Cached content with IndexedDB. Large preview ). Conclusion.

Cache 123

Cache Internet Internet Google 123

Alex Russell

OCTOBER 22, 2017

Tools and CI systems help them monitor progress & prevent regressions. This isn’t true (more on that in a follow-up post), and sites which are built this way implicitly require more script in each document (e.g., This input processing happens on document’s main thread , where JavaScript runs. Parsing CSS.

Performance 68

Performance Benchmarking Network Mobile 68

The Netflix TechBlog

SEPTEMBER 2, 2020

Edgar helps Netflix teams troubleshoot distributed systems efficiently with the help of a summarized presentation of request tracing, logs, analysis, and metadata. The more complex a system, the more places to look for clues. In an earlier blog post, we discussed Telltale , our health monitoring system. What is Edgar?

Latency 296

Latency Transportation Engineering Traffic 296

Alex Russell

MARCH 6, 2021

Unless a site is installed to the home screen as a PWA , any single page is just another in a series of documents that users experience as a river of links. A then-representative $200USD device had 4-8 slow (in-order, low-cache) cores, ~2GiB of RAM, and relatively slow MLC NAND flash storage. The Moto G4 , for example.

Performance 124

Performance Network Cache Metrics 124

Smashing Magazine

SEPTEMBER 26, 2019

This artificially simplified example also reveals several other big problems related to gradual migration : Because we’re combining two different systems, the result might turn out very cluttered: we have to support two different systems with their dependencies, requirements, and opinions simultaneously in the same project.

Architecture 73

Architecture Virtualization Servers Technology 73

Smashing Magazine

JANUARY 11, 2021

CrUX generates an overview of performance distributions over time, with traffic collected from Google Chrome users. You can download the spreadsheet as Google Sheets, Excel, OpenOffice document or CSV. For Mac OS, we can use Network Link Conditioner , for Windows Windows Traffic Shaper , for Linux netem , and for FreeBSD dummynet.

Performance 145

Performance Cache Media Metrics 145

Percona

AUGUST 27, 2018

MySQL 8 introduced a feature that is explained only in a single documentation page. MySQL package installers for Linux systems should set this capability. Instead of providing some improvement, it can unpredictably affect all the traffic. Good MySQL everyone. References. You May Also Like.

Tuning 46

Tuning Virtualization Testing Servers 46

O'Reilly

SEPTEMBER 19, 2023

It progressed from “raw compute and storage” to “reimplementing key services in push-button fashion” to “becoming the backbone of AI work”—all under the umbrella of “renting time and storage on someone else’s computers.” A single document may represent thousands of features.

Hardware 99

Hardware Storage Big Data Blockchain 99

The Netflix TechBlog

NOVEMBER 2, 2021

The coupling problem Until recently, video quality measurements were generated as part of our Reloaded production system. This system is responsible for processing incoming media files, such as video, audio and subtitles, and making them playable on the streaming service. We call this system Cosmos.

Media 171

Media Innovation Metrics Latency 171

Abhishek Tiwari

NOVEMBER 3, 2018

Recently I was asked about content management systems (CMS) of the future - more specifically how they are evolving in the era of microservices, APIs, and serverless computing. Raw content data along with templates are version controlled using Git or similar versioning systems. can generate an HTML-only website without involving a CMS.

Systems 63

Systems Cache Website Network 63

Smashing Magazine

JANUARY 7, 2019

For Mac OS, we can use Network Link Conditioner , for Windows Windows Traffic Shaper , for Linux netem , and for FreeBSD dummynet. Per se, GraphQL is a query language for your API, and a server-side runtime for executing queries by using a type system you define for your data. Large preview ). Unless they don't.

Performance 103

Performance Cache Metrics Network 103

Smashing Magazine

JANUARY 6, 2020

For Mac OS, we can use Network Link Conditioner , for Windows Windows Traffic Shaper , for Linux netem , and for FreeBSD dummynet. Per se, GraphQL is a query language for your API, and a server-side runtime for executing queries by using a type system you define for your data. Large preview ). Unless they don't.

Performance 145

Performance Cache Network Metrics 145