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

Dynatrace

JULY 24, 2023

For example, consider an e-commerce website that automatically sends personalized discount codes to customers who abandon their shopping carts. Let’s examine a few examples of answer-driven automation using AI and context. DevOps automation example #2: Threat detection and response Let’s build on the previous example.

DevOps 225

DevOps Traffic Efficiency Servers 225

Brendan Gregg

MARCH 23, 2024

Some servers have accelerators and you'll want their analysis tools installed as well: e.g., on Intel GPU servers, the intel-gpu-tools package; on NVIDIA, nvidia-smi. On cloud instances, adding Mbytes to the base server image can add seconds, or fractions of a second, to instance deployment time. This list is a minimum.

Servers 145

Servers Traffic Network Systems 145

Dynatrace

JANUARY 29, 2024

Closed loop” refers to the continuous feedback loop in which the system takes actions — based on monitoring and analysis — and verifies the results to ensure complete problem remediation. The goal is to either improve or restore the system to its optimally functioning state. Ideally, this all occurs without human intervention.

Best Practices 197

Best Practices DevOps Energy Innovation 197

The Netflix TechBlog

NOVEMBER 3, 2022

As the number of Titus users increased over the years, the load and pressure on the system increased substantially. cell): Titus Job Coordinator is a leader elected process managing the active state of the system. For example, a batch workflow orchestration system may create multiple jobs which are part of a single workflow execution.

Cache 224

Cache Latency Traffic Systems 224

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

MAY 17, 2023

Anyone who’s concerned with developing, delivering, and operating software knows the importance of making software and the systems it runs on observable. When software runs in a monolithic stack on on-site servers, observability is manageable enough. Why should I adopt observability?

Metrics 185

Metrics Open Source Traffic Cache 185

Dynatrace

APRIL 25, 2023

For example, to handle traffic spikes and pay only for what they use. Observability is essential to ensure the reliability, security and quality of any software system. However, serverless applications have unique characteristics that make observability more difficult than in traditional server-based applications.

Serverless 213

Serverless Lambda Azure AWS 213

Dynatrace

AUGUST 18, 2022

But managing the breadth of the vulnerabilities that can put your systems at risk is challenging. Security vulnerabilities are weaknesses in applications, operating systems, networks, and other IT services and infrastructure that would allow an attacker to compromise a system, steal data, or otherwise disrupt IT operations.

Traffic 168

Traffic Java Network DevOps 168

Dynatrace

SEPTEMBER 29, 2021

Think of containers as the packaging for microservices that separate the content from its environment – the underlying operating system and infrastructure. A standard Docker container can run anywhere, on a personal computer (for example, PC, Mac, Linux), in the cloud, on local servers, and even on edge devices. What is Docker?

Open Source 307

Open Source Traffic DevOps Cloud 307

Dynatrace

MAY 17, 2023

Think about items such as general system metrics (for example, CPU utilization, free memory, number of services), the connectivity status, details of our web server, or even more granular in-application tasks like database queries. Let’s take our previous screenshot as an example.

Metrics 176

Metrics Monitoring Database Network 176

The Morning Paper

NOVEMBER 15, 2020

Achieving 100 Gbps intrusion prevention on a single server , Zhao et al., This stems from a combination of Jevon’s paradox and the interconnectedness of systems – doing more in one area often leads to a need for more elsewhere too. Today’s paper choice is a wonderful example of pushing the state of the art on a single server.

Servers 128

Servers Hardware Latency Design 128

Dynatrace

APRIL 22, 2020

All of this puts a lot of pressure on IT systems and applications. Step 1: Understand Traffic Patterns and Potential Spikes; Remove Team Silos. The impact of traffic spikes is illustrated by the load that eCommerce web sites typically see during Black Friday. The next step is to understand when your system is going to break.

Traffic 208

Traffic Ecommerce Retail Government 208

Dynatrace

MAY 19, 2022

Every organization’s goal is to keep its systems available and resilient to support business demands. Lastly, error budgets, as the difference between a current state and the target, represent the maximum amount of time a system can fail per the contractual agreement without repercussions. Example 1: Architecture boundaries.

Automotive 275

Automotive Latency Architecture Azure 275

Dynatrace

MAY 31, 2023

Uptime Institute’s 2022 Outage Analysis report found that over 60% of system outages resulted in at least $100,000 in total losses, up from 39% in 2019. At the lowest level, SLIs provide a view of service availability, latency, performance, and capacity across systems. More than one in seven outages cost more than $1 million.

Best Practices 228

Best Practices DevOps Latency Metrics 228

Dynatrace

MAY 6, 2020

Over the last two month s, w e’ve monito red key sites and applications across industries that have been receiving surges in traffic , including government, health insurance, retail, banking, and media. The following day, a normally mundane Wednesday , traffic soared to 128,000 sessions.

Website 220

Website Monitoring Retail Media 220

Percona

JUNE 22, 2023

As a MySQL database administrator, keeping a close eye on the performance of your MySQL server is crucial to ensure optimal database operations. However, simply deploying a monitoring tool is not enough; you need to know which Key Performance Indicators (KPIs) to monitor to gain insights into your MySQL server’s health and performance.

Performance 102

Performance Monitoring Traffic Database 102

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. Some disruption might occur, but it will be minimal. Fault tolerance aims for zero downtime and data loss.

Availability 105

Availability Database Open Source Hardware 105

Dynatrace

MARCH 9, 2022

Therefore, it was unsurprising to see a huge spike in traffic for Family Visa enrollment via Metrash. The system saw up to 800 application requests per second – far more than anticipated. More worrisome was a spike in CPU usage, resulting in severe service disruption as backend processing systems crashed due to the spike in load.

Java 227

Java Traffic Government Code 227

Scalegrid

JANUARY 25, 2024

You will need to know which monitoring metrics for Redis to watch and a tool to monitor these critical server metrics to ensure its health. Understanding Redis Performance Indicators Redis is designed to handle high traffic and low latency with its in-memory data store and efficient data structures. <code> 127.0.0.1:6379>

Metrics 130

Metrics Monitoring Latency Cache 130

Percona

SEPTEMBER 1, 2023

Database architects working with MongoDB encounter specific challenges related to database systems and system growth. Sharding in MongoDB is a technique used to distribute a database horizontally across multiple nodes or servers, known as “shards.” Learn more: View our webinar on How to Scale with MongoDB.

Best Practices 70

Best Practices Traffic Database Servers 70

Scalegrid

JANUARY 12, 2024

Simply put, it’s the set of computational tasks that cloud systems perform, such as hosting databases, enabling collaboration tools, or running compute-intensive algorithms. Examples include associations with Google Docs, Facebook chat group interactions, streaming live forex market feeds, and managing trading notices.

Cloud 130

Cloud Virtualization Storage Efficiency 130

Percona

AUGUST 22, 2023

We’ll wrap it up by suggesting high availability open source solutions, and we’ll introduce you to support options for ensuring continuous high performance from your systems. A basic high availability database system provides failover (preferably automatic) from a primary database node to redundant nodes within a cluster.

Availability 77

Availability Hardware Open Source Database 77

Dynatrace

APRIL 13, 2023

Log auditing is a cybersecurity practice that involves examining logs generated by various applications, computer systems, and network devices to identify and analyze security-related events. It requires an understanding of cloud architecture and distributed systems, with the goal of automating processes. Were there attack attempts?

Analytics 190

Analytics Java Infrastructure Cloud 190

Dynatrace

APRIL 26, 2022

STM generates traffic that replicates the typical path or behavior of a user on a network to measure performance for example, response times, availability, packet loss, latency, jitter, and other variables). PC, smartphone, server) or virtual (virtual machines, cloud gateways). Endpoints can be physical (i.e.,

Monitoring 209

Monitoring Social Media IoT Metrics 209

Dynatrace

JUNE 27, 2022

However, not all user monitoring systems are created equal. Data collected on page load events, for example, can include navigation start (when performance begins to be measured), request start (right before the user makes a request from the server), and speed index metrics (measure page load speed). RUM generates a lot of data.

Best Practices 180

Best Practices Monitoring Wireless Traffic 180

Percona

JUNE 2, 2023

While not the first open source content management system (CMS), WordPress caught on like nothing before and helped spread open source to millions. MySQL was the database for phpWebLog, for example, way back in 2000. And if your blog got Slashdotted or just a high level of traffic in general? But mainstream users? Not so much.

Open Source 92

Open Source Traffic Tuning Database 92

Dynatrace

SEPTEMBER 30, 2021

In case of a spike in traffic, you can automatically spin up more resources, often in a matter of seconds. Likewise, you can scale down when your application experiences decreased traffic. For example, as traffic increases, costs will too. Analyze your resource consumption and traffic patterns. Reduced cost.

Cloud 169

Cloud Traffic Best Practices Strategy 169

Dynatrace

MARCH 22, 2021

To keep infrastructure and bare metal servers running smoothly, a long list of additional devices are used, such as UPS devices, rack cases that provide their own cooling, power sources, and other measures that are designed to prevent failures. But manual configuration of observability for systems like this is nearly impossible.

Metrics 245

Metrics Network Infrastructure Traffic 245

Dynatrace

DECEMBER 27, 2022

First, it helps to understand that applications and all the services and infrastructure that support them generate telemetry data based on traffic from real users. In this example, “Reverse proxy” and “Front-end server” are clearly in the critical path. An example setup of a synthetic SLO. Saturation.

Software 269

Software Software Benchmarking Latency 269

Percona

AUGUST 8, 2023

As such, one of the more common questions I get from my clients is whether or not their system will be able to endure an anticipated load increase. Or worse yet, sometimes I get questions about regaining normal operations after a traffic increase caused performance destabilization. Let’s take a look at each common resource.

Traffic 87

Traffic Cache Monitoring Database 87

Dynatrace

JUNE 25, 2020

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. Minimized cross-data center network traffic. By utilizing embedded smart routing capabilities, Dynatrace minimizes cross-region network traffic—OneAgent traffic stays within the same network region.

Availability 251

Availability Hardware Latency Traffic 251

Percona

JUNE 12, 2023

Conversely, choosing a piecemeal approach — one in which you attempt to build a database through the trial and error of various tools and extensions — can leave your system vulnerable. With streaming services, for example, excessive downtime could result in significant financial and reputational losses for the business.

Architecture 93

Architecture Availability Open Source Healthcare 93

Dynatrace

MARCH 25, 2020

Are the systems we rely on every day as reliable via the home internet connection? Example #1 Order System: No change in user or buyers’ behavior. The first example comes from Thomas, who is using Dynatrace to monitor core business applications. Example #2 ensuring DevOps tool chain availability at Dynatrace.

DevOps 178

DevOps Traffic Monitoring Engineering 178

Dynatrace

AUGUST 16, 2022

For example: Infrastructure services might provide data about request timings that can give you a precise overview of system health, but the data is logged in a custom format. For example, Dynatrace recently introduced the extraction of log-based metrics for JSON logs. FILTER_OUT(duration < 100). Masking data for compliance.

Processing 193

Processing Metrics Monitoring Java 193

Dynatrace

AUGUST 30, 2019

She was speaking about how her team is providing Visibility as a Service (VaaS) in order to continuously monitor and optimize their systems running across private and public cloud environments. A big factor in good Digital Performance is the back-end system that powers your digitally offered use-cases.

Cache 201

Cache Architecture Database Government 201

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. Be sure to deploy SQL Server 2017 CU6 or newer for best data durability and performance results. “. The Back Story.

Servers 90

Servers Media Cache Storage 90