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 108

Availability Database Open Source Hardware 108

Percona

AUGUST 30, 2023

In general terms, here are potential trouble spots: Hardware failure: Manufacturing defects, wear and tear, physical damage, and other factors can cause hardware to fail. heat) can damage hardware components and prompt data loss. Human mistakes: Incorrect configuration is an all-too-common cause of hardware and software failure.

Database 88

Database Hardware Open Source Strategy 88

The Morning Paper

NOVEMBER 15, 2020

When used in prevention mode (IPS), this all has to happen inline over incoming traffic to block any traffic with suspicious signatures. Regular expression matching is well studied, but state of the art hardware algorithms don’t reach the performance and memory targets needed for Pigasus. MPSM: First things first.

Servers 128

Servers Hardware Latency Design 128

Scalegrid

FEBRUARY 8, 2024

Key Takeaways Distributed storage systems benefit organizations by enhancing data availability, fault tolerance, and system scalability, leading to cost savings from reduced hardware needs, energy consumption, and personnel. They maintain fault tolerance and redundancy by replicating this information throughout various nodes in the system.

Storage 130

Storage Systems Big Data Azure 130

Percona

JUNE 12, 2023

The immediate (working) goal and requirements of HA architecture The more immediate (and “working” goal) of an HA architecture is to bring together a combination of extensions, tools, hardware, software, etc., Load balancing : Traffic is distributed across multiple servers to prevent any one component from becoming overloaded.

Architecture 96

Architecture Availability Open Source Healthcare 96

Dynatrace

DECEMBER 16, 2021

It’s the same concept as Test Driven Development (TDD) where you start with tests that will fail until you finish implementing the code so tests will succeed. For availability, I always propose to use Dynatrace Synthetic vs looking at real user traffic.

DevOps 214

DevOps Social Media Mobile Metrics 214

Percona

JUNE 22, 2023

Number of slow queries recorded Select types, sorts, locks, and total questions against a database Command counters and handlers used by queries give an overall traffic summary Along with this, PMM also comes with Query Analytics giving much detailed information about queries getting executed.

Performance 104

Performance Monitoring Traffic Database 104

Scalegrid

APRIL 16, 2020

Each of these models is suitable for production deployments and high traffic applications, and are available for all of our supported databases, including MySQL , PostgreSQL , Redis™ and MongoDB® database ( Greenplum® database coming soon). This can result in significant cost savings for high traffic applications. Expert Tip.

Cloud 242

Cloud Azure AWS Database 242

Percona

NOVEMBER 9, 2023

Applications can be horizontally scaled with Kubernetes by adding or deleting containers based on resource allocation and incoming traffic demands. It distributes the load among containers and nodes automatically, ensuring that your application can handle any spike in traffic without the need for manual intervention from an IT staff.

Efficiency 103

Efficiency Cloud Healthcare Open Source 103

Dynatrace

NOVEMBER 29, 2022

Using Davis, Cloud Automation can trigger the right fix for an issue , validate the fix by running a synthetic test, update the service ticket, and notify stakeholders using communication channels—all in an automated way. Proactively manage web and mobile applications based on user experience or traffic.

Infrastructure 180

Infrastructure Code Cloud DevOps 180

Dotcom-Montior

MAY 12, 2020

Web monitoring is a comprehensive term that describes the activity of testing a website or web application for its availability and performance. HTTP monitoring allows you to test availability and performance from around the world. To overcome those intimidating errors, frequent automated and real-time tests should be made.

Monitoring 63

Monitoring Entertainment Hardware Latency 63

Percona

OCTOBER 18, 2023

This approach can minimize complexities but requires complete confidence in your preparations, tests, and abilities. Resource allocation: Personnel, hardware, time, and money The migration to open source requires careful allocation (and knowledge) of the resources available to you. Should I be bringing in external experts to help out?

Open Source 92

Open Source Database Hardware Strategy 92

Testsigma

JANUARY 30, 2021

About two decades ago, testing was only limited to the desktop. With the rapidly increasing use of smartphones and ease of access to the internet across the globe, testing has spread across vast platforms. The native and mobile web browser testing is being performed more and more compared to desktop testing.

Mobile 52

Mobile Testing Website Internet 52

Dynatrace

MAY 1, 2020

This is especially the case with microservices and applications created around multiple tiers, where cheaper hardware alternatives play a significant role in the infrastructure footprint. The initial release of OneAgent for the ARM platform with OneAgent version 1.191 is certified and tested to work on SUSE Enterprise Linux 15.x,

Java 134

Java Hardware Tuning Metrics 134

KeyCDN

AUGUST 15, 2019

Web performance is a broad subject, and you’ll find no shortage of performance testing tips and tutorials all over the web. What is Performance Testing? In the context of web development, performance testing entails using software tools to simulate how an application runs under specific circumstances.

Testing Tools 55

Testing Tools Best Practices Performance Testing Testing 55

Dotcom-Montior

NOVEMBER 27, 2018

You’ve likely uttered the phrases “test early and often” and “shift left,” but do you always remind yourself of the importance of that phrase from the end user’s perspective? LoadView, our on-demand, cloud-based load and stress testing platform , takes an outside-in approach to performance testing.

Performance Testing 40

Performance Testing Strategy Testing Performance 40

Percona

FEBRUARY 24, 2023

The reader instances also cost more than a standard setup, but you can use them for production to handle everyday database traffic. With load balancing, you can redistribute the traffic, sending the reading requests to your read replicas and writing requests to your main database instance automatically.

Cloud 119

Cloud Serverless AWS Storage 119

The Netflix TechBlog

APRIL 29, 2019

Such applications track the inventory of our network gear: what devices, of which models, with which hardware components, located in which sites. Demand Engineering Demand Engineering is responsible for Regional Failovers , Traffic Distribution, Capacity Operations and Fleet Efficiency of the Netflix cloud.

Open Source 279

Open Source Network Infrastructure Big Data 279

The Netflix TechBlog

JUNE 4, 2019

CFS is widely used and therefore well tested and Linux machines around the world run with reasonable performance. The idea CFS operates by very frequently (every few microseconds) applying a set of heuristics which encapsulate a general concept of best practices around CPU hardware use. So why mess with it?

Cache 251

Cache Latency Airlines Logistics 251

Dotcom-Montior

JUNE 19, 2017

Let’s face it – the ideal load test emulates real world traffic, yet most load testing software doesn’t come close. Held back by budget and infrastructure restrictions, some organizations have been forced to settle for load tests that paint an incomplete picture. Setting Up the Test. Creating a Script.

Performance Testing 40

Performance Testing Testing Performance Virtualization 40

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. Can you afford the necessary hardware, software, and operational costs of maintaining a PostgreSQL HA solution? Test the setup.

Availability 84

Availability Open Source Architecture Database 84

All Things Distributed

DECEMBER 12, 2018

Vivino also uses Auto Scaling to deal with the large seasonal fluctuations in traffic. During the winter holiday season, the use of the app increases by up to 300% and AWS allows them to seamlessly scale up to cope with the increase in traffic. Telenor Connexion. Telenor Connexion is all-in on AWS.

AWS 124

AWS Cloud Games Serverless 124

Scalegrid

JANUARY 25, 2024

Understanding Redis Performance Indicators Redis is designed to handle high traffic and low latency with its in-memory data store and efficient data structures. It’s important to note that recommended throughput levels may vary depending on factors such as operating system type, network bandwidth availability, and hardware quality.

Metrics 130

Metrics Monitoring Latency Cache 130

HammerDB

OCTOBER 23, 2023

With a simple example such as this, it would not necessarily be expected for the additional network traffic to be significant between the 2 approaches. Stored Procedures and Client SQL comparison To test the stored procedures and client implementations, we ran both workloads against a system equipped with Intel Xeon 8280L.

Benchmarking 62

Benchmarking Database Network C++ 62

All Things Distributed

MARCH 11, 2016

This is a given, whether you are using the highest quality hardware or lowest cost components. When customers left the constraining, old world of IT hardware and datacenters behind, they started to develop systems with new and interesting usage patterns that no one had ever seen before. Primitives not frameworks. APIs are forever.

AWS 144

AWS Hardware Retail Virtualization 144

All Things Distributed

AUGUST 16, 2012

An apples to apples comparison of the costs associated with running various usage patterns on-premises and with AWS requires more than a simple comparison of hardware expense versus always-on utility pricing for compute and storage. Making predictions about web traffic is a very difficult endeavor. Total Cost of Ownership. t need them.

AWS 118

AWS Hardware Traffic Best Practices 118

Testsigma

MAY 19, 2021

DevOps is not a single system, rather it is a combination of many processes – testing, deployment, production, etc – thus, it’s better termed as a ‘distributed infrastructure’. PaaS not only provides the infrastructure (as in IaaS) but also the framework to build, test and deploy complete software on the cloud.

DevOps 59

DevOps Cloud Artificial Intelligence Infrastructure 59

Dotcom-Montior

JUNE 15, 2020

Essentially, all traffic between China and the rest of the world goes through a few national level and a handful of core level access points in different regions. The censorship and monitoring of internet have evolved from anti-virus-like and firewall software to hardware security patches for all devices that uses internet.

Monitoring 52

Monitoring Performance Artificial Intelligence Internet 52

Brendan Gregg

SEPTEMBER 25, 2021

Since instances of both CentOS and Ubuntu were running in parallel, I could collect flame graphs at the same time (same time-of-day traffic mix) and compare them side by side. As a Xen guest, this profile was gathered using perf(1) and the kernel's software cpu-clock soft interrupts, not the hardware NMI. But I'm not completely sure.

Speed 126

Speed Java AWS Virtualization 126

The Morning Paper

OCTOBER 4, 2020

Coverage is assessed with a walk-test (4-5km/h) over all road segments on the campus, monitoring the physical-layer information from both 5G and 4G at each location. In a web browsing test, 5G only reduced page loading times (PLT) by about 5% compared to 4G. The authors tested a mobile UHD panoramic video telephony app.

Energy 130

Energy Latency Performance Network 130

VoltDB

JUNE 1, 2017

An opening scene involving a traffic jam of Viking boats and a musical number (“Love Can’t Afjord to wait”). Hardware Optimizers” want to get the maximum utilization out of hardware. Private Clouds made of commodity hardware are perceived as the logical solution to this problem. Vikings fight zombies. Where VoltDB fits.

Hardware 56

Hardware Latency Virtualization Cloud 56

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

CSS - Tricks

JULY 25, 2019

During performance tests, Lighthouse records many metrics focused on what a user sees and experiences. that allows for testing a minimum of two devices; a fast desktop and a low-mid range mobile phone. It’s time to come to terms that your customers aren’t using the same powerful hardware as you. In-depth manual profiling.

Google 71

Google Engineering Speed Mobile 71

The Morning Paper

MAY 14, 2019

When a QoS violation is predicted to occur and a culprit microservice located, Seer uses a lower level tracing infrastructure with hardware monitoring primitives to identify the reason behind the QoS violation. E.g., in memcached there are five main internal stages, each of which has a hardware or software queue associated with it.

Big Data 45

Big Data Cloud Performance Hardware 45

Smashing Magazine

OCTOBER 11, 2022

Terabyte of wasted traffic. The Website Carbon Calculator by Wholegrain Digital shows that Smashing Magazine’s homepage is cleaner than 77% of web pages tested. Hardware And E-Waste. On the Fact Sheets page, we can save approx. 85% of images’ file sizes without a noticeable loss of image quality. With approx.

Strategy 124

Strategy Development Energy Website 124

VoltDB

JUNE 1, 2017

An opening scene involving a traffic jam of Viking boats and a musical number (“Love Can’t Afjord to wait”). Hardware Optimizers” want to get the maximum utilization out of hardware. Private Clouds made of commodity hardware are perceived as the logical solution to this problem. Vikings fight zombies. Where VoltDB fits.

Hardware 40

Hardware Latency Virtualization Cloud 40

MachMetrics

JULY 27, 2018

If you run a private WebPageTest instance on Amazon EC2, one of the choices you’ll have to make is whether to use Linux or Windows test agents. But last week I switched over to Linux test agents, and I don’t think I’ll ever go back to Windows – here’s why: 1. Linux Agents are more consistent.

Speed 40

Speed Hardware Internet Internet 40