Scalegrid

AUGUST 30, 2024

Authentication Mechanisms in RabbitMQ RabbitMQ provides several authentication mechanisms to ensure the security of user-server connections, such as using a combination of username and password or employing X.509 When an authentication attempt fails in RabbitMQ, it terminates connections, and error messages are recorded in server logs.

Transportation 130

Transportation Virtualization Strategy Storage 130

Percona

OCTOBER 18, 2023

These vendors often provide integrated stacks that include the database, application server, and other components that seamlessly integrate. Resource allocation: Personnel, hardware, time, and money The migration to open source requires careful allocation (and knowledge) of the resources available to you. And finally… budgets.

Open Source 94

Open Source Database Hardware Strategy 94

Percona

FEBRUARY 24, 2023

In the Home Dashboard of PMM, a low CPU utilization on any of the database services that are being monitored could mean that the server is inactive or over-provisioned. Marked in red in Figure 1 is a server with less than 30% of CPU usage. Configuration of the CPU metrics can be changed in the dashboard.

Cloud 121

Cloud Serverless AWS Storage 121

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 110

Availability Database Open Source Hardware 110

Percona

JULY 7, 2023

In general terms, to achieve HA in PostgreSQL, there must be: Redundancy: To ensure data redundancy and provide continuous performance when a primary server fails, multiple copies of the database reside in replica servers. When the primary server fails, a standby server takes over as the new primary.

Availability 86

Availability Open Source Architecture Database 86

Adrian Cockcroft

NOVEMBER 13, 2023

The carbon footprint of a large rack mounted server is order-of-magnitude a ton of carbon a year. A rough guide if you don’t have any better data is that with no traffic to a system it will be 10% utilization and use 30% of peak power, 25% utilization uses 50% of peak power, and at 50% utilization it uses 75% of peak power.

Energy 52

Energy Cloud Traffic Transportation 52

Percona

APRIL 17, 2023

It is common to see a value of “ 0″ ( or sometimes “10” ) on database servers, telling the kernel to prefer to swap to memory for better response times. 20-30% is a good general default for “dirty_ratio,” but on large-memory database servers, this can be a lot of memory.

Best Practices 52

Best Practices Design Tuning Database 52

Smashing Magazine

MAY 20, 2020

This metric shows how much time it takes for the server to respond with something. This metric is important, but quite vague because it can include anything — starting from server rendering time and ending up with latency problems. This saves clients traffic — sometimes traffic which the client is paying for.

Performance 100

Performance Metrics Best Practices Code 100

Brendan Gregg

SEPTEMBER 5, 2017

Linux has been adding tracing technologies over the years: kprobes (kernel dynamic tracing), uprobes (user-level dynamic tracing), tracepoints (static tracing), and perf_events (profiling and hardware counters). There's a lot about Linux containers that isn't well documented yet, especially since it's a moving target. amazon").

Virtualization 76

Virtualization AWS Engineering Hardware 76

Dynatrace

AUGUST 5, 2019

Resource consumption & traffic analysis. Lift & Shift is where you basically just move physical or virtual hosts to the cloud – essentially you just run your host on somebody else’s hardware. What is the network traffic going to be between services we migrate and those that have to stay in the current data center?

Cloud 31

Cloud Traffic Database Network 31

Alex Russell

OCTOBER 22, 2017

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., Late-loading JavaScript can cause “server-side rendered” pages to fail in infuriating ways. Main-document scrolling (assuming no active touch listeners). Parsing CSS.

Performance 72

Performance Benchmarking Network Mobile 72

Smashing Magazine

AUGUST 22, 2021

Latency can be roughly defined as the time it takes to send a packet from point A (say, the client) to point B (the server). This is one of the main reasons why content delivery networks (CDNs) exist: They place servers physically closer to the end user in order to reduce latency, and thus delay, as much as possible. and prior (a)).

Performance 107

Performance Network Latency Servers 107

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. Hardware Past As Performance Prologue. But the hardware future is not evenly distributed, and web workloads aren't heavily parallel. Mind The Gap.

Performance 127

Performance Network Metrics Cache 127

All Things Distributed

JANUARY 18, 2012

s web-based applications often encounter database scaling challenges when faced with growth in users, traffic, and data. Behind the scenes, Amazon DynamoDB automatically spreads the data and traffic for a table over a sufficient number of servers to meet the request capacity specified by the customer.

Scalability 166

Scalability Database Ecommerce Latency 166

Percona

AUGUST 27, 2018

MySQL 8 introduced a feature that is explained only in a single documentation page. It is well hidden in the Optimization: Optimizing the MySQL Server chapter. Or maybe modify the Servers layout such as adding a Slave and dedicating it to ETL reads. I am talking about resource groups. Currently, CPU affinity (i.e., Conclusion.

Tuning 45

Tuning Virtualization Testing Servers 45

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. It used to provide an insight into how quickly the server outputs any data. You can create your own on Chrome UX Dashboard.

Performance 145

Performance Cache Media Metrics 145

Smashing Magazine

JANUARY 6, 2020

Is it worth exploring tree-shaking, scope hoisting, code-splitting, and all the fancy loading patterns with intersection observer, server push, clients hints, HTTP/2, service workers and — oh my — edge workers? It used to provide an insight into how quickly the server outputs any data. What does it mean? Large preview ).

Performance 145

Performance Cache Metrics Network 145

Smashing Magazine

JANUARY 7, 2019

Is it worth exploring tree-shaking, scope hoisting, code-splitting, and all the fancy loading patterns with intersection observer, server push, clients hints, HTTP/2, service workers and — oh my — edge workers? Long FMP usually indicates JavaScript blocking the main thread, but could be related to back-end/server issues as well.

Performance 104

Performance Cache Metrics Network 104