Dynatrace

JUNE 25, 2020

Dynatrace Managed is intrinsically highly available as it stores three copies of all events, user sessions, and metrics across its cluster nodes. For example, in a three-node cluster, one node can go down; in a cluster with five or more nodes, two nodes can go down. Turnkey high availability across globally distributed data centers.

Availability 251

Availability Hardware Latency Traffic 251

Percona

JULY 7, 2023

With the average cost of unplanned downtime running from $300,000 to $500,000 per hour , businesses are increasingly using high availability (HA) technologies to maximize application uptime. Where a high availability design once worked well, it can no longer keep up with more complex requirements.

Availability 81

Availability Open Source Architecture Database 81

Scalegrid

MAY 13, 2019

MySQL Server generates several logs that can help you monitor the activities of the server. Setting Up MySQL Server Logging. As an example, let’s have some criteria for managing general MySQL query logs. Managing MySQL Server Logs: Rotate, Compress, Retain & Delete Click To Tweet.

Servers 247

Servers Best Practices Efficiency Availability 247

Percona

FEBRUARY 2, 2023

PostgreSQL server authentication refers to verifying the identity of a user trying to connect to the PostgreSQL server. The pg_hba.conf file is used to configure the authentication methods the PostgreSQL server uses and can specify different methods for different types of connections.

Database 121

Database Servers Testing Programming 121

Percona

AUGUST 22, 2023

With so much at stake, database high availability and fault tolerance have become must-have items, but many companies just aren’t certain which one they must have. This blog article will examine shared attributes of high availability (HA) and fault tolerance (FT). What does high availability mean?

Availability 77

Availability Hardware Open Source Database 77

SQL Performance

AUGUST 1, 2022

Recently I covered some of the T-SQL improvements in SQL Server 2022 here , and Aaron Bertrand covered additional improvements here. Microsoft just announced the release of SQL Server 2022 CTP 2.1. I’ll be using the sample database TSQLV6 in the examples in this article. Those improvements were introduced in CTP 2.0.

Servers 142

Servers Testing C++ Code 142

SQL Performance

SEPTEMBER 21, 2022

One example is using a bitwise representation of a set of user/role permissions. Another example is using a bitwise representation of a set of settings turned on or off in a given environment. Even SQL Server stores some flag-based data using bitwise representation. SET_BIT function. BIT_COUNT function.

Servers 122

Servers C++ Code Cache 122

Dynatrace

JULY 31, 2020

We’re happy to announce the General Availability of cross-environment dashboarding capabilities (having released this functionality in an Early Adopter release with Dynatrace version 1.172 back in June 2019). Keep the token secret available for the second and final configuration step. Dynatrace news.

Availability 182

Availability Best Practices Monitoring Network 182

Dynatrace

MARCH 18, 2024

For example, Amazon Web Services (AWS) charges for data transfer between Amazon EC2 instances within the same region. Flexible pricing models that offer discounts based on commitment or availability can greatly reduce cloud waste. This includes spot instances such as unused cloud capacity that’s available at a discounted price.

Best Practices 237

Best Practices Strategy Cloud AWS 237

SQL Performance

MAY 24, 2022

Microsoft recently released the first public preview of SQL Server 2022. I’ll be using the sample database TSQLV6 in the examples in this article. This clause is now available in Azure SQL Database and SQL Server 2022, provided you use database compatibility level 160 or higher.

Servers 145

Servers C++ Code Database 145

Percona

JANUARY 2, 2024

Managing database servers involves different aspects, among which security is critical. However, we know having a “runaway” grant is always a possibility, especially in environments with a large number of servers. Fortunately, in Percona Server for MySQL , this feature is free to use. How does it work?

Servers 81

Servers Database Open Source Scalability 81

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 93

Servers Database Cache C++ 93

Percona

FEBRUARY 24, 2023

So, you have dozens of teams with hundreds of engineers who are responsible for ensuring high availability and reliability, including employing fault-tolerant systems, and implementing rigorous testing and monitoring procedures. What options regarding access control are currently available in PMM? to monitor and diagnose. +50

Metrics 104

Metrics Monitoring Database Engineering 104

Dynatrace

MARCH 15, 2024

Syslog is the go-to protocol that delivers infrastructure administrators, network engineers, and security team logs that tell them all they need to know about their systems’ delivery, performance, availability, and security. Syslog is a protocol with clear specifications that require a dedicated syslog server.

Open Source 205

Open Source Infrastructure Network Government 205

Speed Curve

FEBRUARY 5, 2024

Server-timing headers are a key tool in understanding what's happening within that black box of Time to First Byte (TTFB). Cue server-timing headers Historically, when looking at page speed, we've had the tendency to ignore TTFB when trying to optimize the user experience. I mean, why wouldn't we?

Servers 57

Servers Cache Retail Benchmarking 57

Dynatrace

FEBRUARY 11, 2020

OneAgent knows where to connect for further runtime configuration and where to send data because the installer itself is pre-configured to connect to the exact tenant and server that it’s downloaded from. But what if your environment grows and you decide to distribute data between two Dynatrace servers?

Servers 156

Servers Tuning Systems Availability 156

Scalegrid

DECEMBER 9, 2019

However, discarding a server like this is expensive and inefficient. In this blog post, we will explain an approach to detect and fix transactions on the crashed MySQL master server in a semisynchronous replication setup, and how to re-slave it back into your master-slave setup. Let’s use an example to understand this.

Servers 160

Servers Database Processing Availability 160

Percona

DECEMBER 6, 2022

Percona Server for MySQL 8.0.30-22 22 introduces several improvements for the LDAP plugin: SASL support, support for fallback servers, and support for LDAP-based authorization. For example, the variable authentication_ldap_simple_server_host is called authentication_ldap_sasl_server_host. Fallback server.

Servers 67

Servers Open Source Scalability Availability 67

Dynatrace

APRIL 17, 2024

With the availability of Linux on IBM Z and LinuxONE, the IBM Z platform brings a familiar host operating system and sustainability that could yield up to 75% energy reduction compared to x86 servers. You can now install OneAgent on Linux with s390 architecture. Next, set up log ingest.

Operating System 210

Operating System Energy Infrastructure Architecture 210

Dynatrace

SEPTEMBER 22, 2021

The following components make up the OCP control plane: API server: Tracks the state of all other components and takes care of communication within and outside the cluster. Controller Manager: Runs controllers such as the node controller responsible for handling node availability.

Availability 173

Availability Best Practices Infrastructure Monitoring 173

Smashing Magazine

MAY 16, 2022

Rethinking Server-Timing As A Critical Monitoring Tool. Rethinking Server-Timing As A Critical Monitoring Tool. In the world of HTTP Headers, there is one header that I believe deserves more air-time and that is the Server-Timing header. Setting Server-Timing. Sean Roberts. 2022-05-16T10:00:00+00:00.

Servers 92

Servers Monitoring Cache Network 92

Dynatrace

JUNE 5, 2023

The F5 BIG-IP Local Traffic Manager (LTM) is an application delivery controller (ADC) that ensures the availability, security, and optimal performance of network traffic flows. Business-critical applications typically rely on F5 for availability and success. Example of an automatically generated dashboard for F5 instances.

Traffic 199

Traffic Virtualization Metrics Monitoring 199

DZone

AUGUST 2, 2022

A significant feature of Chronicle Queue Enterprise is support for TCP replication across multiple servers to ensure the high availability of application infrastructure. This is the first time I have benchmarked it with a realistic example. This is the first time I have benchmarked it with a realistic example.

Latency 275

Latency Benchmarking Network Infrastructure 275

SQL Shack

MAY 27, 2019

Introduction to SQL Server Statistics SQL Server Statistics are an essential part of query performance in SQL Server. For example, for […]. They help the query optimizer to prepare a query plan using the distribution of values in participating rows.

Servers 53

Servers Availability Performance 53

Scalegrid

FEBRUARY 8, 2024

A distributed storage system is foundational in today’s data-driven landscape, ensuring data spread over multiple servers is reliable, accessible, and manageable. These storage nodes collaborate to manage and disseminate the data across numerous servers spanning multiple data centers.

Storage 130

Storage Systems Big Data Azure 130

The Netflix TechBlog

AUGUST 16, 2023

It means that if each event loop has a connection pool that connects to every origin (our name for backend) server, there would be a multiplication of event loops by servers by Zuul instances. For example, a 16-core box connecting to an 800-server origin would have 12,800 connections.

Traffic 170

Traffic Servers Google Metrics 170

Brendan Gregg

JANUARY 1, 2019

What is an example of eBPF tracing? For example, it does not trace every packet like older techniques, which can add too much performance overhead. Companies including Netflix and Facebook have bcc installed on all servers by default, and maybe you'll want to as well. ## 4. What's missing is production examples.

C++ 111

C++ Virtualization Programming Code 111

Percona

JUNE 15, 2023

Sometimes we might need to install/upgrade Percona Server for MySQL /MySQL 8 to a particular version in a test or production environment. Install Percona Server for MySQL 8 specific version packages via repository. Download specific Percona Server for MySQL 8 tarball packages and install them manually. bullseye amd64 1.7

Servers 81

Servers C++ Database Systems 81

SQL Performance

JULY 19, 2022

An example of this is updating a fixed-width column in a single row—it will do the following: Perform the update, which generates one log record. 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.

Servers 94

Servers Database Storage Engineering 94

DZone

FEBRUARY 7, 2022

It offers all the functionality we need to deploy our application in production, with a hybrid system with static pages and server-side rendered (SSR) pages. Isomorphic: Works on both server and client (browser). Static export: Compile static files to be able to upload to the server. SSR Benefits (Next.js). Performance.

Mobile 246

Mobile Website Servers Code 246

Percona

JUNE 1, 2023

In this case, we will be analyzing the migration of MariaDB to Percona Server for MySQL 8 in particular. the same does not happen with MariaDB, which from a specific version, we could say in some way, distanced itself from MySQL and Percona Server for MySQL. Upload that dump to the Percona Server for MySQL using myloader.

Servers 71

Servers Database Testing Open Source 71

The Morning Paper

NOVEMBER 15, 2020

Achieving 100 Gbps intrusion prevention on a single server , Zhao et al., Today’s paper choice is a wonderful example of pushing the state of the art on a single server. Moreover, Pigasus wants to do all this on a single server! Can you really do all this on a single server?? OSDI’20. We always want more!

Servers 128

Servers Hardware Latency Design 128

The Netflix TechBlog

MAY 4, 2023

It provides a good read on the availability and latency ranges under different production conditions. These include options where replay traffic generation is orchestrated on the device, on the server, and via a dedicated service. Also, since this logic resides on the server side, we can iterate on any required changes faster.

Traffic 339

Traffic Latency Tuning Systems 339

CSS Wizardry

DECEMBER 9, 2023

A trivial performance optimisation to help speed up third-party or other-origin requests is to preconnect them: hint that the browser should preemptively open a full connection ( DNS , TCP , TLS ) to the origin in question, for example: In the right circumstances, this simple, single line of HTML can make pages hundreds of milliseconds faster !

Speed 234

Speed Network Analytics Availability 234

Scalegrid

MAY 13, 2020

It can scale towards a multi-petabyte level data workload without a single issue, and it allows access to a cluster of powerful servers that will work together within a single SQL interface where you can view all of the data. Greenplum Database is a massively parallel processing (MPP) SQL database that is built and based on PostgreSQL.

Big Data 321

Big Data Database Artificial Intelligence Open Source 321

The Netflix TechBlog

JUNE 14, 2023

Before GraphQL: Monolithic Falcor API implemented and maintained by the API Team Before moving to GraphQL, our API layer consisted of a monolithic server built with Falcor. A single API team maintained both the Java implementation of the Falcor framework and the API Server. To launch Phase 1 safely, we used AB Testing.

Traffic 353

Traffic Latency Cache Metrics 353

SQL Performance

OCTOBER 7, 2020

The canonical example of a plan operator that can rewind is the lazy Table Spool. The Sort operator’s rewind behaviour may seem strange, but it has been this way from (at least) SQL Server 2000 to SQL Server 2019 inclusive (as well as Azure SQL Database). This first example features two table variables.

Servers 106

Servers Cache Azure Performance 106