Enterprise(d) Tomcat & httpd
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The document discusses new features in Apache HTTP Server (httpd) version 2.4 and Apache Tomcat versions 7 and 8. Some key improvements in httpd 2.4 include better performance, optimizations to make it "cloud ready" with asynchronous I/O and a new multi-processing module. Tomcat 7 offers Servlet 3.0 compliance and improved startup time. Tomcat 8 features Servlet 3.1 with non-blocking I/O, HTTP protocol upgrades, and support for SPDY and web sockets. The presentation covers using httpd as a reverse proxy and load balancer for backend servers like Tomcat.
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Something more recent: https://www.youtube.com/watch?v=sHCTJNRjdcM
Apache Performance Tuning: Scaling Up
This is the version of my Apache Performance Tuning deck I last presented at ApacheCon, in 2008 in Amsterdam.
End to End Processing of 3.7 Million Telemetry Events per Second using Lambda...
End to End Processing of 3.7 Million Telemetry Events per Second using Lambda...DataWorks Summit/Hadoop Summit
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Slow things down to make them go faster [FOSDEM 2022]
Talk from FOSDEM 2022
It's easy to get misled into overconfidence based on the performance of powerful servers, given today's monster core counts and RAM sizes. However, the reality of high concurrency usage is often disappointing, with less throughput than one would expect. Because of its internals and its multi-process architecture, PostgreSQL is very particular about how it likes to deal with high concurrency and in some cases it can slow down to the point where it looks like it's not performing as it should. In this talk we'll take a look at potential pitfalls when you throw a lot of work at your database. Specifically, very high concurrency and resource contention can cause problems with lock waits in Postgres. Very high transaction rates can also cause problems of a different nature. Finally, we will be looking at ways to mitigate these by examining our queries and connection parameters, leveraging connection pooling and replication, or adapting the workload.
Topics:
1. Understand what we mean by high concurrency.
2. Understand ACID & MVCC in Postgres.
3. Understand how high concurrency affects Postgres performance.
4. Understand how locks/latches affect Postgres performance.
5. Understand how high transaction rates can affect Postgres.
6. Mitigation strategies for high concurrency scenarios.
Tomcatx performance-tuning
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This document discusses various techniques for optimizing Drupal performance, including:
- Defining goals such as faster page loads or handling more traffic
- Applying patches and rearchitecting content to optimize at a code level
- Using tools like Apache Benchmark and MySQL tuning to analyze performance bottlenecks
- Implementing solutions like caching, memcached, and reverse proxies to improve scalability
IBM MQ vs Apache ActiveMQ
Enterprises today are faced with the decision of determining the right messaging solution for their business. Open source solutions provide good base messaging, and can be seen as a low cost entry point. However, when it comes to the need for scalability and performance, IBM MQ is the leading industry messaging solution for your business.
IBM MQ Appliance - Administration simplified
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WUG Days 2022 Brno - Networking in .NET 7.0 and YARP -- Karel Zikmund
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Oplægget blev holdt ved et seminar i InfinIT-interessegruppen Højniveausprog til indlejrede systemer, der blev afholdt den 18. juni 2014. Læs mere om interessegruppen her: http://infinit.dk/dk/interessegrupper/hoejniveau_sprog_til_indlejrede_systemer/hoejniveau_sprog_til_indlejrede_systemer.htm3450 - Writing and optimising applications for performance in a hybrid messag...
Messaging architectures in any environment, from local standalone deployments through to public clouds, must provide the highest reliability yet maximize their performance. This session gives you an insight into IBM MQ and how applications can be made to perform to their absolute best while maintaining the data integrity that IBM MQ is renowned for. We'll see how this can be achieved through a combination of good application design, system tuning and architectural patterns.
Taking the open cloud to 11
This document summarizes a presentation about the open source CloudStack cloud computing platform. CloudStack provides tools for provisioning and managing virtual infrastructure as a service, including APIs for self-service provisioning, distributed management of compute, storage and networking resources, and high availability features. The presentation outlines CloudStack's history and goals of multi-tenancy, broad hardware support, orchestration of resources behind firewalls, and scalability. It describes key CloudStack components and features such as the management server, domains and users, hypervisor and storage support, resource allocation policies, and networking functionality.
AWS re:Invent presentation: Unmeltable Infrastructure at Scale by Loggly
This document summarizes Loggly's transition from their first generation log management infrastructure to their second generation infrastructure built on Apache Kafka, Twitter Storm, and ElasticSearch on AWS. The first generation faced challenges around tightly coupling event ingestion and indexing. The new system uses Kafka as a persistent queue, Storm for real-time event processing, and ElasticSearch for search and storage. This architecture leverages AWS services like auto-scaling and provisioned IOPS for high availability and scale. The new system provides improved elasticity, multi-tenancy, and a pre-production staging environment.
WebLogic Stability; Detect and Analyse Stuck Threads
Stuck threads are a major cause for stability issues of WebLogic Server environments. Often people in operations and development who are confronted with stuck threads, are at a loss what to do. In this presentation we will talk about what stuck threads actually are and how you can detect them. We will elaborate on how you can get to the root cause of a stuck thread and which tools can help you with that. In order to reduce the impact of having stuck threads in an application, we will talk about using workmanagers. In order to prevent stuck threads we will illustrate several patterns which can be implemented in infrastructure and applications. Next time you see a stuck thread, you will know what to do!
Architectures, Frameworks and Infrastructure
This document discusses various technologies related to architectures, frameworks, infrastructure, services, data stores, analytics, logging and metrics. It covers Java 8 features like lambda expressions and method references. It also discusses microservices, Spring Boot basics and features, Gradle vs Maven, Swagger, AngularJS, Gulp, Jasmine, Karma, Nginx, CloudFront, Couchbase, Lambda Architecture, logging with Fluentd and Elasticsearch, metrics collection with Collectd and Statsd, and visualization with Graphite and Grafana.
Cloud compiler - Minor Project by students of CBPGEC
The document describes a cloud compiler system that allows users to compile, run, test and debug code in various programming languages like Java, HTML, SQL, and C# without installing compilers locally. It discusses key aspects of the system like the objective, introduction, platforms and technologies used like Tomcat server, Java Server Pages, and Struts framework. Some benefits highlighted are that it is user friendly, supports multiple languages, and allows accessing programs from any device with an internet connection.
Infrastructure at Scale: Apache Kafka, Twitter Storm & Elastic Search (ARC303...
"This is a technical architect's case study of how Loggly has employed the latest social-media-scale technologies as the backbone ingestion processing for our multi-tenant, geo-distributed, and real-time log management system. This presentation describes design details of how we built a second-generation system fully leveraging AWS services including Amazon Route 53 DNS with heartbeat and latency-based routing, multi-region VPCs, Elastic Load Balancing, Amazon Relational Database Service, and a number of pro-active and re-active approaches to scaling computational and indexing capacity.
The talk includes lessons learned in our first generation release, validated by thousands of customers; speed bumps and the mistakes we made along the way; various data models and architectures previously considered; and success at scale: speeds, feeds, and an unmeltable log processing engine."
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WSO2 Microservices Framework for Java - Product Overview
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What You Should Know About WebLogic Server 12c (12.2.1.2) #oow2015 #otntour2...
What You Should Know About WebLogic Server 12c (12.2.1.2) #oow2015 #otntour2...
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Enterprise(d) Tomcat & httpd
- 1. 3th April 2013 Enterprise(d) Tomcat in Action Václav Tunka Software Engineer, JBoss by Red Hat
- 2. What will we cover • Short intro to httpd and tomcat • New features in httpd 2.4 • New features in Tomcat 7 & 8
- 3. httpd • Multi-platform HTTP server with reverse proxy, load balancing, virtual hosting, ... • httpd 1.0 was initially designed for a different situation than we have now • A lot of clustered servers for backend (tomcat, AS, jetty), now we need clustering for httpd as well
- 5. httpd 2.4 • Improvements in performance • Making httpd “cloud ready” • Async I/O – Multi-Processing Module workers (MPM) as default. • High-performance APR
- 6. Apache Portable Runtime • Platform independent API for: – Memory allocation and memory pool functionality – Atomic operations – Dynamic library handling – File I/O – Locking – Thread, process and mutex functionality
- 7. Modules • Bandwith control: mod_ratelimit • Security: mod_reqtimeout • I/O buffer control: mod_buffer • LUA support: mod_lua • Making the proxy cloud friendly: – mod_slotmem_shm (from mod_cluster)
- 8. Reverse proxy • Support for dynamic configuration. • Runtime change of clusters w/o restarts. • mod_proxy_express for cloud services. • Connection pooling
- 9. Cloud ready • Solving horizontal scalability. • Low latency. • Fast request-response turover.
- 10. Time for Tomcat
- 11. Tomcat 7 • Servlet 3.0 compliant – asynchronous execution of processing – pluggability and extension support – new set of annotations • JSP 2.2 – Jasper part of Tomcat project
- 12. Tomcat 7 • Valves replaced by Filters (Valves still work) • Startup time reduced • Easy to configure programatically
- 13. Tomcat 8 • Servlet 3.1 – Non-blocking I/O – HTTP protocol upgrade mechanism – Security improvements • JSP 2.3 • SPDY • Web sockets
- 14. References • [1] httpd usage according to W3Tech • Apache and Tomcat logos from apache.org • Mladen Turk's httpd and Tomcat presentations
- 15. Questions? 15
- 16. 16