Django and Nginx reverse proxy cache

"We're hiring!" How many times have you heard this phrase at a conference? Every database-driven company is hiring and that makes for pretty stiff competition when trying to get a new DBA. Instead of searching for the perfect database administrator from a conference or Linkedin, why not look internally at your organization for system administrators or engineers who may be an equally good fit given the right training. In this talk, I'll explain how the DBAs at Box developed a knowledge-sharing culture around databases and disseminated important learnings to other members of the company. I'll also cover the mentorship process we established to train other members of our Operations team to become rock star DBAs and manage our MySQL and HBase infrastructure at Box.

Genkidama is a P2P content distribution system built using Java and DHT techniques. It uses NicoCache for storage and OpenChord for the DHT overlay. It supports 300 concurrent users and was developed by Daiki for uses including P2P SIP and livedoor. It provides a web dashboard and integrates various technologies like NAT traversal, XMLRPC, and a GUI.

This document discusses the challenges of building a backup system for thousands of containers. It describes the architecture of the backup systems the presenter has built over time, which use LVM and thin provisioning to back up each container to its own logical volume. Network speeds can be a bottleneck for large restores. The current system schedules daily incremental backups of 100,000 containers across multiple backup nodes. Issues encountered include corrupted metadata from too many logical volumes, sluggish performance from device scanning, and crashes from discarding data in older LVM versions. The system now backs up at the account level instead of whole containers to speed up restores.

This document discusses various techniques for optimizing website performance, including: reducing page generation time through caching and opcode caching; minimizing round-trip times by leveraging browser caching, combining files, and parallel downloads; decreasing response sizes by gzipping files, image optimization, and cookieless domains; and tools for analyzing performance like XDebug. The goal is to share experiences helping to increase traffic to websites with average resources.

Discover the very wide world of web servers, in addition to the basic web deliverance fonctionnality, we will cover the reverse proxy, the resource caching and the load balancing. Nginx and apache HTTPD will be used as web server and reverse proxy, and to illustrate some caching features we will also present varnish a powerful caching server. To introduce load balancers we will compare between Nginx and Haproxy.

This document discusses HTTP caching tips and tricks. It explains that caching can decrease traffic, increase loading speed, require less code, and allow offline use. It provides code to enable caching and describes headers for content validation, cache checking, and cache management. These techniques can help optimize performance by leveraging cached responses when possible.

This document discusses various debugging tools for Linux systems including ldd, strace, ltrace, and GDB. Ldd displays shared library dependencies, strace and ltrace trace system calls and library functions respectively, and GDB is the GNU debugger that allows setting breakpoints and examining processes. The document encourages writing code as cleverly as possible since debugging is harder than writing code, and provides tips on configuring and using these debugging tools.

An overview of the history, current state of NGINX and NGINX Plus as well as an overview of the industry we see changing today.

(Presented by New Relic) Too often, developers think of a mobile app as simply code running on the device. A mobile app is much more than that. Every web API used by an app becomes as much a part of the app as the code running on the device. But while mobile developers have control over their code, they don't always have control over the APIs they use. Web APIs and their infrastructure impact app performance and ultimately the user experience. This presentation covers some of the essential aspects of app performance management when web APIs are present, including: -HTTP headers are your friend--stop ignoring all they have to tell you -Control your network connections on the device—don't just leave things to the OS -Configure all your caches and use them -Whatever you do, measure early and often The session includes a customer story from the CTO of Mirego, and demos of New Relic mobile app performance monitoring, where you see how to drill down into specific requests to see performance by response time, throughput, and data transfer size.

On-demand recording: https://www.nginx.com/resources/webinars/rate-limiting-nginx/ Learn how to mitigate DDoS and password-guessing attacks by limiting the number of HTTP requests a user can make in a given period of time. This webinar will teach you how to: * How to protect application servers from being overwhelmed with request limits * About the burst and no‑delay features for minimizing delay while handling large bursts of user requests * How to use the map and geo blocks to impose different rate limits on different HTTP user requests * About using the limit_req_log_level directive to set logging levels for rate‑limiting events About the webinar A delay of even a few seconds for a screen to render is interpreted by many users as a breakdown in the experience. There are many reasons for these breakdowns in the user experience, one of which is DDoS attacks which tie up your system’s resources. Rate limiting is a powerful feature of NGINX that can mitigate DDoS attacks, which would otherwise overload your servers and hinder application performance. In this webinar, we’ll cover basic concepts as well as advanced configuration. We will finish with a live demo that shows NGINX rate limiting in action.

View CDN performance data, learn how you can collect data on CDN performance and get tips on improving CDN performance.

This document summarizes the differences between the ruby-postgres and postgres-pr PostgreSQL database adapters for ActiveRecord in Ruby. It notes that postgres-pr is pure Ruby while ruby-postgres uses the libpq C library. It provides examples showing that postgres-pr is missing some functionality that ruby-postgres has like ParameterStatus support and asynchronous query execution. It concludes that while postgres-pr is useful, it has limitations that may prevent ActiveRecord from working properly, so ruby-postgres is likely better supported.

This document discusses optimizing a WordPress site to handle high traffic loads. It provides tips for caching at various levels (opcode, object, page, fragment) using tools like Nginx, PHP-FPM, memcached. It also recommends using a CDN, handling traffic variability, and scaling to multiple application servers with a load balancer. Benchmark results show performance improving from serving 50k pages/day to over 8k requests/second after these optimizations.

The document describes Monkey, an open source HTTP server. It aims to be lightweight, fast, flexible and community-oriented while supporting embedded systems. Key features include HTTP/1.1, asynchronous sockets, Linux kernel support, multiple hardware architectures, and an indented configuration format. It uses a multi-layered architecture with worker threads for scheduling connections and tracking time. Plugins add functionality for logging, security, SSL, websockets and more. Benchmarks show it uses less memory than Nginx, Cherokee and Apache. Future plans include FastCGI, NoSQL support, URL rewriting and improved documentation. The project encourages community involvement through beta testing, artwork, documentation and coding.

The document discusses various techniques for scaling PHP applications, including: 1. Using load balancers to distribute traffic across multiple servers and ensure high availability. 2. Implementing session persistence to maintain user sessions as clients are load balanced. 3. Separating static and dynamic content to improve performance by serving static files from optimized servers. 4. Caching frequently accessed data and generated pages to reduce database queries. 5. Database replication and other techniques for scaling the application database infrastructure. 6. Code optimization methods like opcode caching and acceleration. 7. Design considerations like modularity when planning for scalability.

This document discusses monitoring microservices running in containers at scale. Some key points: 1) Containers introduce additional complexity for monitoring due to their dynamic nature - the average host runs 8 containers and each container only runs for 2 days on average. 2) Traditional VM-based monitoring agents can't monitor inside containers so monitoring must be done from outside the containers, like monitoring remote hosts. 3) Orchestration platforms like Kubernetes add labels to collected metrics to provide context on nodes, pods, services and more. 4) The large number of short-lived containers results in high metric series churn that must be addressed to avoid exploding storage requirements. Dimensional labeling and partitioning metrics by time help

Slides for my talk at BCN WordCamp 2016. Improve the performance of WordPress installations by using the right tool at every corresponding level in the technology stack.

On-Demand Recording: https://www.nginx.com/resources/webinars/high-availability-content-caching-nginx/ You trust NGINX to be your web server, but did you know it’s also a high-performance content cache? In fact, the world’s most popular CDNs – CloudFlare, MaxCDN, and Level 3 among them – are built on top of the open source NGINX software. NGINX content caching can drastically improve the performance of your applications. We’ll start with basic configuration, then move on to advanced concepts and best practices for architecting high availability and capacity in your application infrastructure. Join this webinar to: * Enable content caching with the key configuration directives * Use micro caching with NGINX Plus to cache dynamic content while maintaining low CPU utilization * Partition your cache across multiple servers for high availability and increased capacity * Log transactions and troubleshoot your NGINX content cache

Whether for speed, security or scalability, a WordPress site can be improved using NGINX. View full webinar on-demand at: http://nginx.com/resources/webinars/taste-nginx-conf-wordpress-nginx-best-practices-easyengine/

The document provides guidelines for deploying an L.N.M.P environment on a 64-bit server. It specifies directory locations for source code, installed software, scripts and logs. It also outlines steps to update the system, install and configure MySQL, Nginx, PHP and other packages, including compiling Nginx with specific modules and options, setting Nginx as a service, and enabling syntax highlighting for Nginx configuration files.

This document provides tips and best practices for optimizing a WordPress site hosted on a VPS. It recommends switching from the default PHP implementation to PHP-FPM to improve performance. It also recommends replacing the default web server with Nginx, and describes various Nginx configuration options to optimize caching, compression, and resource usage. These include enabling OPcache and using Nginx as a reverse proxy for caching and serving static files. The document also covers using Nginx fastcgi caching to cache dynamic PHP pages from WordPress for better performance.