100m Events

Infrastructure for Decision Makers

Eric Lubow discussed key questions to consider when building an infrastructure architecture. He outlined questions around where systems will live, how data will move and be stored, and how to ensure systems can be maintained and scaled. Lubow emphasized the importance of monitoring systems to understand if anything is wrong and highlighted lessons learned from SimpleReach's architecture evolution.

Polyglottany Is Not A Sin

This document discusses polyglottany, which refers to using multiple programming languages and data storage technologies together. It advocates choosing the right tool for each job based on factors like data structure, query patterns, and performance needs. The document outlines SimpleReach's use of Cassandra, MongoDB, Redis, and Infobright and ties them together with a service-oriented architecture and internal API. It acknowledges challenges like expertise, data consistency, and complexity but argues polyglottany allows using the best technology for each task.

Counters At Scale - A Cautionary Tale

Eric Lubow discussed the challenges his company SimpleReach faced when using Cassandra counters at scale to track metrics for their content analytics platform. SimpleReach processes huge volumes of data, writing 250,000-300,000 counter values per second. Early on they encountered performance issues with counters but were able to optimize their implementation through techniques like pre-aggregating writes, using counter batches, extensive monitoring, upgrading hardware, and tuning Cassandra and JVM settings. Upgrading to Cassandra 2.1 also helped improve counter performance.

Message Architectures in Distributed Systems - Data Day Texas 2013-01-11

Micro Services - Neither Micro Nor Service

Microservice - All is Small, All is Well?

This document discusses microservices and their advantages and disadvantages. Microservices are small, independent units that work together to form an application. They allow for independent deployment and use of different technologies. While this improves scalability and agility, it also introduces challenges around distributed systems, refactoring code between services, and operating at scale. The key is to start with a functional architecture and limit communication between services.

This document discusses canary analysis, which is a deployment process where a new change is gradually rolled out to production with checkpoints to examine the new systems versus the old systems and make go/no-go decisions. It proposes using canary analysis to test software releases by routing a small percentage of traffic to new servers and comparing metrics like error rates and requests per second between the new and old servers before fully deploying the new release. The document provides advice on automating canary analysis, focusing on relative metrics, ignoring outliers, balancing fidelity with customer impact, and letting application owners choose when differences are acceptable.

TDC2016SP - Otimização Prematura: a Raíz de Todo o Mal

tdc-globalcode

I. The document discusses the concept of premature optimization being the root of all evil in software development. II. It provides examples of strategies to focus on first making software work correctly before optimizing, such as using open source software, cloud services, and prioritizing maintainability over performance. III. The document emphasizes that developers should identify key priorities and metrics before optimizing code, as unnecessary early optimizations can decrease code quality and maintainability.

Andrew Polaszek - ZooBank: ICZN’s open-access web register of animal names a...

ICZN

Your Goat Antifragiled My Snowflake!: Demystifying DevOps Jargon - ChefConf 2015

Chef

From ChefConf 2015. https://youtu.be/OU3F_UU-Jpc Are you a cow, a pet, a canary, or a unicorn? Do you prefer blue/green, or red/green/refactor? Who the heck is Brent? Welcome to DevOps, where we are all about breaking down walls. But, we've created a private dialect, full of familiar words with unfamiliar meanings, and in-jokes upon in-jokes. Many newcomers wish there was a glossary for the movement. Time to be inclusive! In this fun session, we'll go over some of the more unintuitive terms (being a goat is a good thing!) and the backstories behind them. We'll have an extended audience participation segment in which you can ask about words you've heard.

Apache Solr 5.0 and beyond

Anshum Gupta

Anshum Gupta is an Apache Lucene/Solr committer who works at Lucidworks. He discusses the history and capabilities of Apache Lucene, an open source information retrieval library, and Apache Solr, an enterprise search platform built on Lucene. Solr has over 8 million downloads and is used by many large companies for search capabilities including indexing, faceting, auto-complete, and scalability to handle large datasets. Major updates in Solr 5 include improved performance, security features, and analytics capabilities.

Micro Services - Smaller is Better?

Testing Variability-Intensive Systems, tutorial SPLC 2017, part I

XavierDevroey

The document discusses testing techniques for variability-intensive systems. It provides an overview of model-based techniques to test such systems, considering both structural and behavioral concerns. The tutorial is divided into two parts: Part I covers sampling techniques for selecting sample configurations to test from a feature model, including a discussion of applying these techniques to the JHipster case study. Part II introduces behavior modeling and behavior-driven test case selection techniques, and how to concretize test cases. An open discussion session concludes the tutorial.

Conexão Kinghost - Otimização Prematura

Fabio Akita

Micro Service – The New Architecture Paradigm

The document discusses microservices as a new software architecture paradigm. It defines microservices as small, independent processes that work together to form an application. The key benefits of microservices are that they allow for easier, faster deployment of features since each service is its own deployment unit and teams can deploy independently without integration. However, the document also notes challenges of microservices such as increased communication overhead, difficulty of code reuse across services, and managing dependencies between many different services. It concludes that microservices are best for projects where time to market is important and continuous delivery is a priority.

Interns What Is DevOps

Aaron Blythe

Dashboard Mania

Tim Lossen

The document discusses using dashboards and information radiators to track key metrics and provide visibility. It provides examples of metrics that could be tracked, such as requests per second and installs per minute. It also discusses Kafka, a tool for building real-time data pipelines and streaming applications, and how it provides high-throughput, persistent, publish-subscribe messaging capabilities. The document recommends not flying blind, checking out Kafka, and being creative with dashboards and information radiators.

Dockercon USA 2016 - Immutable Awesomeness

John Willis

This document discusses immutable infrastructure and how it relates to containerization and DevOps practices. It provides background on immutable infrastructure and how concepts like golden images, virtual desktop infrastructure, and infrastructure as code enable an immutable model. The document outlines principles for immutable delivery around variety, velocity, variability and visibility in the supply chain. It also discusses how Docker and containers support immutable models through tools like infrastructure templates and one-way deployment flows from development to production.

Immutable Awesomeness by John Willis and Josh Corman

Docker, Inc.

This presentation will show the combination of two ideas that can create 2 to 3 order of magnitude efficiencies in service delivery. We will discuss an example used in an insurance company that has experienced these efficiencies. Josh Corman will present the concept of using Open Source and Toyota Supply Chain principles as a weapon for eliminating operational costs of service delivery. By applying first order principles like fewer suppliers (e.g, less logging frameworks) and image manifests (i.e., bill of materials) he will show how an organization can cut down on bugs and issue resolution times. John Willis will then cover how these principles fit like peanut butter and chocolate when used in an immutable delivery model based on Docker. This presentation was the third highest rated session at the 2015 Devops Enterprise Summit.

The "Ops" Side of DevSecOps

Rundeck

Damon Edwards, co-founder of Rundeck, presentation at Nexus Conf 2018 on how Security teams can help Operations and, in turn, help themselves. See a Demo of Rundeck Enterprise : https://www.rundeck.com/see-demo --or-- Download Rundeck Open Source here: https://rundeck.com/open-source Connect: Stack Overflow community: https://stackoverflow.com/questions/tagged/rundeck Github: https://github.com/rundeck/rundeck/issues Twitter: https://twitter.com/Rundeck Facebook: https://www.facebook.com/RundeckInc/ LinkedIn: www.linkedin.com › company › rundeck-inc

Programming quantum computers in Q# (Techorama NL 2018)

Rolf Huisman

Ds @ bol

Asparuh Hristov

The document discusses various data science applications at Bol.com including measuring user interactions on the website, forecasting product demand, and building recommendation systems. It provides examples and details for each application. For measuring, it notes Bol is able to process user event data with a 1-2 second lag compared to 25-30 seconds for another company. For recommendations, it highlights improvements from moving the service to the cloud including faster response times and being able to generate new predictions in 30 minutes instead of 24 hours. For forecasting demand, it outlines the process and techniques used including starting small, experimenting fast, and scaling up over time using various machine learning models and cloud technologies.

DevOps 2016 summit

Chihyang Li

The document summarizes a DevOps 2016 Summit agenda. It includes presentations on Kubernetes DevOps by Ray Tsang from Google, DevOps powered by containers by Glenn West from Red Hat, Docker by a speaker from MediaTek, using Elasticsearch, Logstash and Kibana for log centralization and visualization, IoT Docker DevOps by Linker Network Software, shaking up culture with automation by a Yahoo Japan speaker, monitoring by a speaker from Gogolook, Chinese infrastructure by Sammy Lin, continuous integration/delivery by a speaker from Vpon, and what DevOps is through building on lean and agile practices.

GraphSummit Singapore | Neo4j Product Vision & Roadmap - Q2 2024

Removing Uninteresting Bytes in Software Fuzzing

Aftab Hussain

Imagine a world where software fuzzing, the process of mutating bytes in test seeds to uncover hidden and erroneous program behaviors, becomes faster and more effective. A lot depends on the initial seeds, which can significantly dictate the trajectory of a fuzzing campaign, particularly in terms of how long it takes to uncover interesting behaviour in your code. We introduce DIAR, a technique designed to speedup fuzzing campaigns by pinpointing and eliminating those uninteresting bytes in the seeds. Picture this: instead of wasting valuable resources on meaningless mutations in large, bloated seeds, DIAR removes the unnecessary bytes, streamlining the entire process. In this work, we equipped AFL, a popular fuzzer, with DIAR and examined two critical Linux libraries -- Libxml's xmllint, a tool for parsing xml documents, and Binutil's readelf, an essential debugging and security analysis command-line tool used to display detailed information about ELF (Executable and Linkable Format). Our preliminary results show that AFL+DIAR does not only discover new paths more quickly but also achieves higher coverage overall. This work thus showcases how starting with lean and optimized seeds can lead to faster, more comprehensive fuzzing campaigns -- and DIAR helps you find such seeds. - These are slides of the talk given at IEEE International Conference on Software Testing Verification and Validation Workshop, ICSTW 2022.

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Removing Uninteresting Bytes in Software Fuzzing

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Cosa hanno in comune un mattoncino Lego e la backdoor XZ?

Speck&Tech

ABSTRACT: A prima vista, un mattoncino Lego e la backdoor XZ potrebbero avere in comune il fatto di essere entrambi blocchi di costruzione, o dipendenze di progetti creativi e software. La realtà è che un mattoncino Lego e il caso della backdoor XZ hanno molto di più di tutto ciò in comune. Partecipate alla presentazione per immergervi in una storia di interoperabilità, standard e formati aperti, per poi discutere del ruolo importante che i contributori hanno in una comunità open source sostenibile. BIO: Sostenitrice del software libero e dei formati standard e aperti. È stata un membro attivo dei progetti Fedora e openSUSE e ha co-fondato l'Associazione LibreItalia dove è stata coinvolta in diversi eventi, migrazioni e formazione relativi a LibreOffice. In precedenza ha lavorato a migrazioni e corsi di formazione su LibreOffice per diverse amministrazioni pubbliche e privati. Da gennaio 2020 lavora in SUSE come Software Release Engineer per Uyuni e SUSE Manager e quando non segue la sua passione per i computer e per Geeko coltiva la sua curiosità per l'astronomia (da cui deriva il suo nickname deneb_alpha).

A tale of scale & speed: How the US Navy is enabling software delivery from l...

sonjaschweigert1

Rapid and secure feature delivery is a goal across every application team and every branch of the DoD. The Navy’s DevSecOps platform, Party Barge, has achieved: - Reduction in onboarding time from 5 weeks to 1 day - Improved developer experience and productivity through actionable findings and reduction of false positives - Maintenance of superior security standards and inherent policy enforcement with Authorization to Operate (ATO) Development teams can ship efficiently and ensure applications are cyber ready for Navy Authorizing Officials (AOs). In this webinar, Sigma Defense and Anchore will give attendees a look behind the scenes and demo secure pipeline automation and security artifacts that speed up application ATO and time to production. We will cover: - How to remove silos in DevSecOps - How to build efficient development pipeline roles and component templates - How to deliver security artifacts that matter for ATO’s (SBOMs, vulnerability reports, and policy evidence) - How to streamline operations with automated policy checks on container images

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Goodbye Windows 11: Make Way for Nitrux Linux 3.5.0!

SOFTTECHHUB

As the digital landscape continually evolves, operating systems play a critical role in shaping user experiences and productivity. The launch of Nitrux Linux 3.5.0 marks a significant milestone, offering a robust alternative to traditional systems such as Windows 11. This article delves into the essence of Nitrux Linux 3.5.0, exploring its unique features, advantages, and how it stands as a compelling choice for both casual users and tech enthusiasts.

GraphSummit Singapore | Graphing Success: Revolutionising Organisational Stru...

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