The Netflix TechBlog

SEPTEMBER 18, 2024

Central to this infrastructure is our use of multiple online distributed databases such as Apache Cassandra , a NoSQL database known for its high availability and scalability. Data Model At its core, the KV abstraction is built around a two-level map architecture. Developers just provide their data problem rather than a database solution!

Latency 248

Latency Storage Cache Efficiency 248

Percona

JUNE 22, 2023

To make data count and to ensure cloud computing is unabated, companies and organizations must have highly available databases. This guide provides an overview of what high availability means, the components involved, how to measure high availability, and how to achieve it.

Availability 113

Availability Database Open Source Hardware 113

Scalegrid

MARCH 28, 2024

Key Takeaways Redis offers complex data structures and additional features for versatile data handling, while Memcached excels in simplicity with a fast, multi-threaded architecture for basic caching needs. Redis is better suited for complex data models, and Memcached is better suited for high-throughput, string-based caching scenarios.

Cache 130

Cache Storage Architecture Scalability 130

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 103

Servers Database Cache C++ 103

CSS Wizardry

SEPTEMBER 16, 2024

However, there are a handful of ways available to us—some are, admittedly, more easy and free than others. Reduce Transfer Size Broadly simplified… Web servers don’t send whole files at once—they chunk them into packets and send those. permitted the opening of multiple simultaneous connections to a server at once.

Latency 202

Latency Cache Transportation Mobile 202

SQL Shack

NOVEMBER 23, 2021

This article explores the Hybrid Buffer Pool feature available in the SQL Server 2019. Introduction SQL Server uses Dynamic Random Access Memory (D-RAM) buffer pool for caching data pages retrieved from the disk. The buffer cache stores the page and writes back to disk only if it is modified.

Servers 93

Servers Cache Availability Performance 93

Scalegrid

MARCH 23, 2020

It supports high-availability, provides automated load balancing, and has the intelligence to balance load between masters and slaves so write loads are always directed at masters, while read loads are directed to slaves. Once installed, we must configure Pgpool-II to enable the services we want, and connect to the PostgreSQL server.

Cache 264

Cache Servers Architecture Processing 264

KeyCDN

JUNE 6, 2019

We’re happy to announce that WebP Caching has landed! The new feature integrates into the existing CDN and is available to all customers. We offer both a one click solution with no change required on your origin server as well as an approach where you can deliver the WebP assets from your origin server.

Cache 81

Cache Servers Website Traffic 81

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 Benchmarking Retail 57

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 356

Traffic Latency Cache Metrics 356

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. Evaluating factors like hit rate, which assesses cache efficiency level, or tracking key evictions from the cache are also essential elements during the Redis monitoring process.

Metrics 130

Metrics Monitoring Latency Cache 130

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 95

Servers Monitoring Cache Network 95

ScaleOut Software

APRIL 22, 2020

The Solution: Distributed Caching. A widely used technology called distributed caching meets this need by storing frequently accessed data in memory on a server farm instead of within a database. This speeds up accesses and updates while offloading back-end database servers.

Cache 52

Cache Storage Servers Database 52

ScaleOut Software

APRIL 22, 2020

The Solution: Distributed Caching. A widely used technology called distributed caching meets this need by storing frequently accessed data in memory on a server farm instead of within a database. This speeds up accesses and updates while offloading back-end database servers.

Cache 52

Cache Storage Servers Database 52

Percona

SEPTEMBER 28, 2023

Whenever you install your favorite MySQL server on a freshly created Ubuntu instance, you start by updating the configuration for MySQL, such as configuring buffer pool, changing the default datadir director, and disabling one of the most outstanding features – query cache. It’s a nice thing to do, but first things first.

Servers 118

Servers Best Practices Database Open Source 118

Scalegrid

OCTOBER 2, 2019

This management solution for Redis™ allows startups up to enterprise-level organizations automate their Redis™ operations on Microsoft Azure dedicated cloud servers, alongside their other open source database deployments, including MongoDB , MySQL and PostgreSQL. PALO ALTO, Calif.,

Azure 100

Azure Availability Open Source Virtualization 100

Dynatrace

JANUARY 31, 2024

The RAG process begins by summarizing and converting user prompts into queries that are sent to a search platform that uses semantic similarities to find relevant data in vector databases, semantic caches, or other online data sources. million AI server units annually by 2027, consuming 75.4+

Cache 216

Cache Azure Infrastructure Monitoring 216

SQL Performance

SEPTEMBER 21, 2022

Even SQL Server stores some flag-based data using bitwise representation. Examples include the following: The set_options and required_cursor_options cached plan attributes, which you obtain using the sys.dm_exec_plan_attributes DMF. Setting the server configuration option “ user options” using bitwise representation.

Servers 122

Servers C++ Code Cache 122

The Netflix TechBlog

SEPTEMBER 10, 2024

By Karthik Yagna , Baskar Odayarkoil , and Alex Ellis Pushy is Netflix’s WebSocket server that maintains persistent WebSocket connections with devices running the Netflix application. What if we wanted to move past Pushy’s pattern of delivering server-side messages?

Latency 228

Latency Cache Tuning Efficiency 228

Scalegrid

MAY 11, 2024

However, it is limited by the available free memory amount, and all data is lost when the server stops. It uses a filesystem cache and write-ahead log for crash recovery. It’s worth noting that WiredTiger is not the only storage engine available with MongoDB; it’s simply the new default.

Storage 130

Storage Engineering Cache Database 130

Percona

APRIL 7, 2023

If we were to select the most important MySQL setting, if we were given a freshly installed MySQL or Percona Server for MySQL and could only tune a single MySQL variable, which one would it be? Sysbench ran on a third server, which I’ll refer to as the application server (APP).

Tuning 139

Tuning Cache Servers Benchmarking 139

Percona

APRIL 6, 2023

Load balancing One of the primary benefits of using pgpool-II is its ability to distribute incoming client connections across multiple PostgreSQL servers, allowing you to balance the load and increase the capacity of your database cluster. This can significantly improve query response times and reduce the load on your database servers.

Cache 119

Cache Open Source Benchmarking Database 119

Scalegrid

JULY 8, 2020

If you must kill the script at this point, there are two options available: SCRIPT KILL command can be used to stop a script that hasn’t yet done any writes. If the script has already performed writes to the server and must still be killed, use the SHUTDOWN NOSAVE to shutdown the server completely. Expert Tip. Demonstration.

Servers 239

Servers Database Availability Monitoring 239

Dynatrace

JANUARY 16, 2023

On-premises data centers invest in higher capacity servers since they provide more flexibility in the long run, while the procurement price of hardware is only one of many cost factors. That trend will likely continue as Kubernetes security awareness further rises and a new class of security solutions becomes available.

Open Source 351

Open Source Java Operating System Programming 351

SQL Performance

OCTOBER 7, 2020

Its raison d’être is to cache result rows from a plan subtree, then replay those rows on subsequent iterations if any correlated loop parameters are unchanged. Table-valued functions use a table variable, which can be used to cache and replay results in suitable circumstances. Spools are the least costly way to cache partial results.

Servers 106

Servers Cache Azure Performance 106

Scalegrid

DECEMBER 21, 2023

To achieve optimal tracking results it is important to choose wisely among available tools like Prometheus or Grafana, which offer deeper insights into understanding your Redis® instances for better performance optimization. Keeping a tab on memory usage provides additional insight into the health of operations running through Redis® servers.

Strategy 130

Strategy Monitoring Latency DevOps 130

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 88

Servers C++ Database Systems 88

The Netflix TechBlog

OCTOBER 8, 2024

However, storing and querying such data presents a unique set of challenges: High Throughput : Managing up to 10 million writes per second while maintaining high availability. Here’s how we manage this: Horizontal scaling : TimeSeries server instances can auto-scale up and down as per attached scaling policies to meet the traffic demand.

Latency 236

Latency Storage Traffic Tuning 236

Percona

DECEMBER 5, 2022

ProxySQL is a very useful tool for gaining high availability, load balancing, query routing, query caching, query rewriting, multiplexing, and data masking. There can be an instance of ProxySQL using a lot of memory on the server. It is a proven tool and is used largely in production. Commands end with ; or g.

Servers 60

Servers Cache C++ Metrics 60

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 344

Traffic Latency Tuning Systems 344

Percona

MARCH 27, 2023

On MySQL and Percona Server for MySQL , there is a schema called information_schema (I_S) which provides information about database tables, views, indexes, and more. The same tests have been executed in Percona Server for MySQL 5.7 Results for Percona Server for MySQL 5.7 Results for Percona Server for MySQL 5.7

Cache 108

Cache Hardware Servers Benchmarking 108

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

High Scalability

FEBRUARY 17, 2021

Redis Server: 5.07, x86/64. MongoDB server: 4.4.2, BangDB server: 2.0.0, Application example: user profile cache, where profiles are constructed elsewhere (e.g., However, user can run the bench for as many numbers as they practically find suitable. About YCSB. Following configurations were used for the evaluation purpose.

Benchmarking 308

Benchmarking Latency C++ Database 308

CSS Wizardry

MAY 31, 2019

Users might already have the file cached. If website-a.com links to [link] , and a user goes from there to website-b.com who also links to [link] , then the user will already have that file in their cache. Critical assets are far too valuable to leave on someone else’s servers. Penalty: Caching. Risk: Service Shutdowns.

Cache 274

Cache Latency Infrastructure Website 274

O'Reilly Software

DECEMBER 28, 2017

Learn how to properly design RESTful APIs communication with clients, accounting for request structure, authentication, and caching. In this second part, we will talk in more detail about how the server should react to incoming requests with status codes. We are using the principles of RESTful architecture over HTTP.

Servers 83

Servers Cache Mobile Architecture 83

The Netflix TechBlog

OCTOBER 29, 2020

This translates to a large number of app configurations to toggle feature availability and optimize the in-app experience for each production. For our use-case, we’re configuring the availability of production, version, and region specific app feature sets. This led us to build a lightweight Hendrix mobile SDK?

Mobile 279

Mobile Cache Network Architecture 279

SQL Performance

DECEMBER 17, 2019

One initial, easy step to moving your SQL Server on-premises workloads to the cloud is using Azure VMs to run your SQL Server workloads in an infrastructure as a service (IaaS) scenario. You will still have to maintain your operating system, SQL Server and databases just like you would in an on-premises scenario.

Azure 72

Azure Virtualization Servers Storage 72