Cassandra & the Acunu Data Platform
Tom Wilkie discusses how the Acunu data platform provides significant performance improvements for Cassandra. Acunu uses a doubling array technique for inserts and range queries that is over 100x faster than standard Cassandra for small random operations. It bridges the performance gap between traditional and modern distributed databases through its shared memory interface and kernel optimizations.
More at http://sites.google.com/site/cudaiap2009 and http://pinto.scripts.mit.edu/Classes/CUDAIAP2009
Note that some slides were borrowed from Matthew Bolitho (John Hopkins) and NVIDIA.
CCNxCon2012: Session 5: Distributed Cooperative Caching Scheme in CCNPARC, a Xerox company
Distributed Cooperative Caching Scheme in CCN
Dariusz Bursztynowski, Mateusz Dzida, Tomasz Janaszka (Telekomunikacja Polska, Orange Labs, Poland), Adam Dubiel (Warsaw University of Technology, Poland), Michal Rowicki (Warsaw University of Technology and Telekomunikacja Polska, Poland)
by James Broberg - Presentation given at the 2nd International Workshop on Web APIs and Mashups (at ICSOC2008) on December 1st, 2008 in Sydney, Australia. http://www.icsoc-mashups.org/
Self Repairing Tree Topology Enabling Content Based Routing In Local Area Ne...ncct
final Year Projects, Final Year Projects in Chennai, Software Projects, Embedded Projects, Microcontrollers Projects, DSP Projects, VLSI Projects, Matlab Projects, Java Projects, .NET Projects, IEEE Projects, IEEE 2009 Projects, IEEE 2009 Projects, Software, IEEE 2009 Projects, Embedded, Software IEEE 2009 Projects, Embedded IEEE 2009 Projects, Final Year Project Titles, Final Year Project Reports, Final Year Project Review, Robotics Projects, Mechanical Projects, Electrical Projects, Power Electronics Projects, Power System Projects, Model Projects, Java Projects, J2EE Projects, Engineering Projects, Student Projects, Engineering College Projects, MCA Projects, BE Projects, BTech Projects, ME Projects, MTech Projects, Wireless Networks Projects, Network Security Projects, Networking Projects, final year projects, ieee projects, student projects, college projects, ieee projects in chennai, java projects, software ieee projects, embedded ieee projects, "ieee2009projects", "final year projects", "ieee projects", "Engineering Projects", "Final Year Projects in Chennai", "Final year Projects at Chennai", Java Projects, ASP.NET Projects, VB.NET Projects, C# Projects, Visual C++ Projects, Matlab Projects, NS2 Projects, C Projects, Microcontroller Projects, ATMEL Projects, PIC Projects, ARM Projects, DSP Projects, VLSI Projects, FPGA Projects, CPLD Projects, Power Electronics Projects, Electrical Projects, Robotics Projects, Solor Projects, MEMS Projects, J2EE Projects, J2ME Projects, AJAX Projects, Structs Projects, EJB Projects, Real Time Projects, Live Projects, Student Projects, Engineering Projects, MCA Projects, MBA Projects, College Projects, BE Projects, BTech Projects, ME Projects, MTech Projects, M.Sc Projects, Final Year Java Projects, Final Year ASP.NET Projects, Final Year VB.NET Projects, Final Year C# Projects, Final Year Visual C++ Projects, Final Year Matlab Projects, Final Year NS2 Projects, Final Year C Projects, Final Year Microcontroller Projects, Final Year ATMEL Projects, Final Year PIC Projects, Final Year ARM Projects, Final Year DSP Projects, Final Year VLSI Projects, Final Year FPGA Projects, Final Year CPLD Projects, Final Year Power Electronics Projects, Final Year Electrical Projects, Final Year Robotics Projects, Final Year Solor Projects, Final Year MEMS Projects, Final Year J2EE Projects, Final Year J2ME Projects, Final Year AJAX Projects, Final Year Structs Projects, Final Year EJB Projects, Final Year Real Time Projects, Final Year Live Projects, Final Year Student Projects, Final Year Engineering Projects, Final Year MCA Projects, Final Year MBA Projects, Final Year College Projects, Final Year BE Projects, Final Year BTech Projects, Final Year ME Projects, Final Year MTech Projects, Final Year M.Sc Projects, IEEE Java Projects, ASP.NET Projects, VB.NET Projects, C# Projects, Visual C++ Projects, Matlab Projects, NS2 Projects, C Projects, Microcontroller Projects, ATMEL Projects, PIC Projects, ARM Projects, DSP Projects, VLSI Projects, FPGA Projects, CPLD Projects, Power Electronics Projects, Electrical Projects, Robotics Projects, Solor Projects, MEMS Projects, J2EE Projects, J2ME Projects, AJAX Projects, Structs Projects, EJB Projects, Real Time Projects, Live Projects, Student Projects, Engineering Projects, MCA Projects, MBA Projects, College Projects, BE Projects, BTech Projects, ME Projects, MTech Projects, M.Sc Projects, IEEE 2009 Java Projects, IEEE 2009 ASP.NET Projects, IEEE 2009 VB.NET Projects, IEEE 2009 C# Projects, IEEE 2009 Visual C++ Projects, IEEE 2009 Matlab Projects, IEEE 2009 NS2 Projects, IEEE 2009 C Projects, IEEE 2009 Microcontroller Projects, IEEE 2009 ATMEL Projects, IEEE 2009 PIC Projects, IEEE 2009 ARM Projects, IEEE 2009 DSP Projects, IEEE 2009 VLSI Projects, IEEE 2009 FPGA Projects, IEEE 2009 CPLD Projects, IEEE 2009 Power Electronics Projects, IEEE 2009 Electrical Projects, IEEE 2009 Robotics Projects, IEEE 2009 Solor Projects, IEEE 2009 MEMS Projects, IEEE 2009 J2EE P
Transformation Strategies for Higher EducationCognizant
Across the education ecosystem, the basic tenets of teaching and learning are being challenged by business and technology drivers -- compelling institutions in the higher education field to adopt a new playbook in order to remain relevant.
More at http://sites.google.com/site/cudaiap2009 and http://pinto.scripts.mit.edu/Classes/CUDAIAP2009
Note that some slides were borrowed from Matthew Bolitho (John Hopkins) and NVIDIA.
CCNxCon2012: Session 5: Distributed Cooperative Caching Scheme in CCNPARC, a Xerox company
Distributed Cooperative Caching Scheme in CCN
Dariusz Bursztynowski, Mateusz Dzida, Tomasz Janaszka (Telekomunikacja Polska, Orange Labs, Poland), Adam Dubiel (Warsaw University of Technology, Poland), Michal Rowicki (Warsaw University of Technology and Telekomunikacja Polska, Poland)
by James Broberg - Presentation given at the 2nd International Workshop on Web APIs and Mashups (at ICSOC2008) on December 1st, 2008 in Sydney, Australia. http://www.icsoc-mashups.org/
Self Repairing Tree Topology Enabling Content Based Routing In Local Area Ne...ncct
final Year Projects, Final Year Projects in Chennai, Software Projects, Embedded Projects, Microcontrollers Projects, DSP Projects, VLSI Projects, Matlab Projects, Java Projects, .NET Projects, IEEE Projects, IEEE 2009 Projects, IEEE 2009 Projects, Software, IEEE 2009 Projects, Embedded, Software IEEE 2009 Projects, Embedded IEEE 2009 Projects, Final Year Project Titles, Final Year Project Reports, Final Year Project Review, Robotics Projects, Mechanical Projects, Electrical Projects, Power Electronics Projects, Power System Projects, Model Projects, Java Projects, J2EE Projects, Engineering Projects, Student Projects, Engineering College Projects, MCA Projects, BE Projects, BTech Projects, ME Projects, MTech Projects, Wireless Networks Projects, Network Security Projects, Networking Projects, final year projects, ieee projects, student projects, college projects, ieee projects in chennai, java projects, software ieee projects, embedded ieee projects, "ieee2009projects", "final year projects", "ieee projects", "Engineering Projects", "Final Year Projects in Chennai", "Final year Projects at Chennai", Java Projects, ASP.NET Projects, VB.NET Projects, C# Projects, Visual C++ Projects, Matlab Projects, NS2 Projects, C Projects, Microcontroller Projects, ATMEL Projects, PIC Projects, ARM Projects, DSP Projects, VLSI Projects, FPGA Projects, CPLD Projects, Power Electronics Projects, Electrical Projects, Robotics Projects, Solor Projects, MEMS Projects, J2EE Projects, J2ME Projects, AJAX Projects, Structs Projects, EJB Projects, Real Time Projects, Live Projects, Student Projects, Engineering Projects, MCA Projects, MBA Projects, College Projects, BE Projects, BTech Projects, ME Projects, MTech Projects, M.Sc Projects, Final Year Java Projects, Final Year ASP.NET Projects, Final Year VB.NET Projects, Final Year C# Projects, Final Year Visual C++ Projects, Final Year Matlab Projects, Final Year NS2 Projects, Final Year C Projects, Final Year Microcontroller Projects, Final Year ATMEL Projects, Final Year PIC Projects, Final Year ARM Projects, Final Year DSP Projects, Final Year VLSI Projects, Final Year FPGA Projects, Final Year CPLD Projects, Final Year Power Electronics Projects, Final Year Electrical Projects, Final Year Robotics Projects, Final Year Solor Projects, Final Year MEMS Projects, Final Year J2EE Projects, Final Year J2ME Projects, Final Year AJAX Projects, Final Year Structs Projects, Final Year EJB Projects, Final Year Real Time Projects, Final Year Live Projects, Final Year Student Projects, Final Year Engineering Projects, Final Year MCA Projects, Final Year MBA Projects, Final Year College Projects, Final Year BE Projects, Final Year BTech Projects, Final Year ME Projects, Final Year MTech Projects, Final Year M.Sc Projects, IEEE Java Projects, ASP.NET Projects, VB.NET Projects, C# Projects, Visual C++ Projects, Matlab Projects, NS2 Projects, C Projects, Microcontroller Projects, ATMEL Projects, PIC Projects, ARM Projects, DSP Projects, VLSI Projects, FPGA Projects, CPLD Projects, Power Electronics Projects, Electrical Projects, Robotics Projects, Solor Projects, MEMS Projects, J2EE Projects, J2ME Projects, AJAX Projects, Structs Projects, EJB Projects, Real Time Projects, Live Projects, Student Projects, Engineering Projects, MCA Projects, MBA Projects, College Projects, BE Projects, BTech Projects, ME Projects, MTech Projects, M.Sc Projects, IEEE 2009 Java Projects, IEEE 2009 ASP.NET Projects, IEEE 2009 VB.NET Projects, IEEE 2009 C# Projects, IEEE 2009 Visual C++ Projects, IEEE 2009 Matlab Projects, IEEE 2009 NS2 Projects, IEEE 2009 C Projects, IEEE 2009 Microcontroller Projects, IEEE 2009 ATMEL Projects, IEEE 2009 PIC Projects, IEEE 2009 ARM Projects, IEEE 2009 DSP Projects, IEEE 2009 VLSI Projects, IEEE 2009 FPGA Projects, IEEE 2009 CPLD Projects, IEEE 2009 Power Electronics Projects, IEEE 2009 Electrical Projects, IEEE 2009 Robotics Projects, IEEE 2009 Solor Projects, IEEE 2009 MEMS Projects, IEEE 2009 J2EE P
Transformation Strategies for Higher EducationCognizant
Across the education ecosystem, the basic tenets of teaching and learning are being challenged by business and technology drivers -- compelling institutions in the higher education field to adopt a new playbook in order to remain relevant.
DEBS 2013 - "Ariadne: Managing Fine-Grained Provenance on Data Streams"Boris Glavic
Managing fine-grained provenance is a critical requirement for data stream management systems (DSMS), not only to address complex applications that require diagnostic capabilities and assurance, but also for providing advanced functionality such as revision processing or query debugging. This paper introduces a novel approach that uses operator instrumentation, i.e., modifying the behavior of operators, to generate and propagate fine-grained provenance through several operators of a query network. In addition to applying this technique to compute provenance eagerly during query execution, we also study how to decouple provenance computation from query processing to reduce run-time overhead and avoid unnecessary provenance retrieval. This includes computing a concise superset of the provenance to allow lazily replaying a query network and reconstruct its provenance as well as lazy retrieval to avoid unnecessary reconstruction of provenance. We develop stream-specific compression methods to reduce the computational and storage overhead of provenance generation and retrieval. Ariadne, our provenance-aware extension of the Borealis DSMS implements these techniques. Our experiments confirm that Ariadne manages provenance with minor overhead and clearly outperforms query rewrite, the current state-of-the-art.
High Availability with Novell Cluster Services for Novell Open Enterprise Ser...Novell
High availability provides a safety net for single points of hardware failure. This session will identify the software and hardware requirements for implementing Novell Cluster Services with Novell Open Enterprise Server. We'll cover concepts related to design, installation and monitoring. We'll also show you real-world clustering examples for Novell GroupWise, Novell Teaming and Novell iFolder.
A quick intro to DevCloud the CloudStack sandbox, and how to use CloudMonkey to manage your cloud.
DevCloud is a virtualbox image that contains the CloudStack source code and that is setup to run the storage infrastructure needed by CloudStack plus the networking setup to build the guest network of the VMs. Tiny Linux instances can be started within the Devcloud VM making use of nested virtualization.
This is a perfect setup to discover cloudstack, give demos and test new codes. It is used to test new releases and verify basic functionality. You can run DevCloud on your laptop and then use the command line interface CloudMonkey to make API calls to your DevCloud instance.
This is the perfect complement to the talk on CloudMonkey and shows the basic functionality of a cloud. Instance creation, snapshots, networking, network offering and AWS EC2 compatibility.
My talk from BACD http://buildacloud.org workshop in Ghent, Belgium
All videos can be viewed at: http://www.youtube.com/playlist?list=PLb899uhkHRoZZefRW5XmCb8QBcRO7o74E
This is an introductory talk for the workshop, it introduces CloudStack and the community at the Apache Software Foundation, it presents the basic layers of the Cloud IaaS, PaaS, and SaaS and shows how the CloudStack ecosystem addresses all layers. It presents the basic features of cloudstack, networking with a focus on SDN (Software Defined Networking) , storage with a focus on large scale object store (Ceph), a use case with Spotify, a PaaS with Karafe and fuse Fabric, the API using deltacloud which provides the CIMI standard interface and an application integration using the CloudStack API with Activeeon.
This is the perfect complement to the videos on youtube and serves as a introduction to CloudStack.
1 Introduction at CloudStack Developer Day
1 - Introduction at CloudStack Developer Day
By Alex Huang
Architect, Cloud Platforms Group, Citrix Systems Inc.
Balancing Replication and Partitioning in a Distributed Java DatabaseBen Stopford
This talk, presented at JavaOne 2011, describes the ODC, a distributed, in-memory database built in Java that holds objects in a normalized form in a way that alleviates the traditional degradation in performance associated with joins in shared-nothing architectures. The presentation describes the two patterns that lie at the core of this model. The first is an adaptation of the Star Schema model used to hold data either replicated or partitioned data, depending on whether the data is a fact or a dimension. In the second pattern, the data store tracks arcs on the object graph to ensure that only the minimum amount of data is replicated. Through these mechanisms, almost any join can be performed across the various entities stored in the grid, without the need for key shipping or iterative wire calls.
Windows Server 2012 Active Directory Domain and Trust (Forest Trust)Serhad MAKBULOĞLU, MBA
Serhad Makbuloğlu tarafından verilecek bu web seminerinde, Windows Server 2012 Active Directory Domain and Trust (Forest Trust) konusu anlatılacaktır. Bu web semineri teknik içeriğe sahiptir. Ayrıca Web seminer sonundaki soru&cevap bölümünde de bu ürünle ilgili merak ettiğiniz soruların cevaplarını bulabilirsiniz.
Acunu Analytics and Cassandra at Hailo All Your Base 2013 Acunu
Hailo, the taxi app, has served more than 5 million passengers in 15 cities and has taken fares of $100 million this year. I'm going to talk about how that rapid growth has been powered by a platform based on Cassandra and operational analytics and insights powered by Acunu Analytics. I'll cover some challenges and lessons learned from scaling fast!
Talk for the Cassandra Seattle Meetup April 2013: http://www.meetup.com/cassandra-seattle/events/114988872/
Cassandra's got some properties which make it an ideal fit for building real-time analytics applications -- but getting from atomic increments to live dashboards and streaming queries is quite a stretch. In this talk, Tim Moreton, CTO at Acunu, talks about how and why they built Acunu Analytics, which adds rich SQL-like queries and a RESTful API on top of Cassandra, and looks at how it keeps Cassandra's spirit of denormalization under the hood.
Accelerate your Kubernetes clusters with Varnish CachingThijs Feryn
A presentation about the usage and availability of Varnish on Kubernetes. This talk explores the capabilities of Varnish caching and shows how to use the Varnish Helm chart to deploy it to Kubernetes.
This presentation was delivered at K8SUG Singapore. See https://feryn.eu/presentations/accelerate-your-kubernetes-clusters-with-varnish-caching-k8sug-singapore-28-2024 for more details.
Climate Impact of Software Testing at Nordic Testing DaysKari Kakkonen
My slides at Nordic Testing Days 6.6.2024
Climate impact / sustainability of software testing discussed on the talk. ICT and testing must carry their part of global responsibility to help with the climat warming. We can minimize the carbon footprint but we can also have a carbon handprint, a positive impact on the climate. Quality characteristics can be added with sustainability, and then measured continuously. Test environments can be used less, and in smaller scale and on demand. Test techniques can be used in optimizing or minimizing number of tests. Test automation can be used to speed up testing.
SAP Sapphire 2024 - ASUG301 building better apps with SAP Fiori.pdfPeter Spielvogel
Building better applications for business users with SAP Fiori.
• What is SAP Fiori and why it matters to you
• How a better user experience drives measurable business benefits
• How to get started with SAP Fiori today
• How SAP Fiori elements accelerates application development
• How SAP Build Code includes SAP Fiori tools and other generative artificial intelligence capabilities
• How SAP Fiori paves the way for using AI in SAP apps
Le nuove frontiere dell'AI nell'RPA con UiPath Autopilot™UiPathCommunity
In questo evento online gratuito, organizzato dalla Community Italiana di UiPath, potrai esplorare le nuove funzionalità di Autopilot, il tool che integra l'Intelligenza Artificiale nei processi di sviluppo e utilizzo delle Automazioni.
📕 Vedremo insieme alcuni esempi dell'utilizzo di Autopilot in diversi tool della Suite UiPath:
Autopilot per Studio Web
Autopilot per Studio
Autopilot per Apps
Clipboard AI
GenAI applicata alla Document Understanding
👨🏫👨💻 Speakers:
Stefano Negro, UiPath MVPx3, RPA Tech Lead @ BSP Consultant
Flavio Martinelli, UiPath MVP 2023, Technical Account Manager @UiPath
Andrei Tasca, RPA Solutions Team Lead @NTT Data
Alt. GDG Cloud Southlake #33: Boule & Rebala: Effective AppSec in SDLC using ...James Anderson
Effective Application Security in Software Delivery lifecycle using Deployment Firewall and DBOM
The modern software delivery process (or the CI/CD process) includes many tools, distributed teams, open-source code, and cloud platforms. Constant focus on speed to release software to market, along with the traditional slow and manual security checks has caused gaps in continuous security as an important piece in the software supply chain. Today organizations feel more susceptible to external and internal cyber threats due to the vast attack surface in their applications supply chain and the lack of end-to-end governance and risk management.
The software team must secure its software delivery process to avoid vulnerability and security breaches. This needs to be achieved with existing tool chains and without extensive rework of the delivery processes. This talk will present strategies and techniques for providing visibility into the true risk of the existing vulnerabilities, preventing the introduction of security issues in the software, resolving vulnerabilities in production environments quickly, and capturing the deployment bill of materials (DBOM).
Speakers:
Bob Boule
Robert Boule is a technology enthusiast with PASSION for technology and making things work along with a knack for helping others understand how things work. He comes with around 20 years of solution engineering experience in application security, software continuous delivery, and SaaS platforms. He is known for his dynamic presentations in CI/CD and application security integrated in software delivery lifecycle.
Gopinath Rebala
Gopinath Rebala is the CTO of OpsMx, where he has overall responsibility for the machine learning and data processing architectures for Secure Software Delivery. Gopi also has a strong connection with our customers, leading design and architecture for strategic implementations. Gopi is a frequent speaker and well-known leader in continuous delivery and integrating security into software delivery.
The Metaverse and AI: how can decision-makers harness the Metaverse for their...Jen Stirrup
The Metaverse is popularized in science fiction, and now it is becoming closer to being a part of our daily lives through the use of social media and shopping companies. How can businesses survive in a world where Artificial Intelligence is becoming the present as well as the future of technology, and how does the Metaverse fit into business strategy when futurist ideas are developing into reality at accelerated rates? How do we do this when our data isn't up to scratch? How can we move towards success with our data so we are set up for the Metaverse when it arrives?
How can you help your company evolve, adapt, and succeed using Artificial Intelligence and the Metaverse to stay ahead of the competition? What are the potential issues, complications, and benefits that these technologies could bring to us and our organizations? In this session, Jen Stirrup will explain how to start thinking about these technologies as an organisation.
Transcript: Selling digital books in 2024: Insights from industry leaders - T...BookNet Canada
The publishing industry has been selling digital audiobooks and ebooks for over a decade and has found its groove. What’s changed? What has stayed the same? Where do we go from here? Join a group of leading sales peers from across the industry for a conversation about the lessons learned since the popularization of digital books, best practices, digital book supply chain management, and more.
Link to video recording: https://bnctechforum.ca/sessions/selling-digital-books-in-2024-insights-from-industry-leaders/
Presented by BookNet Canada on May 28, 2024, with support from the Department of Canadian Heritage.
GDG Cloud Southlake #33: Boule & Rebala: Effective AppSec in SDLC using Deplo...James Anderson
Effective Application Security in Software Delivery lifecycle using Deployment Firewall and DBOM
The modern software delivery process (or the CI/CD process) includes many tools, distributed teams, open-source code, and cloud platforms. Constant focus on speed to release software to market, along with the traditional slow and manual security checks has caused gaps in continuous security as an important piece in the software supply chain. Today organizations feel more susceptible to external and internal cyber threats due to the vast attack surface in their applications supply chain and the lack of end-to-end governance and risk management.
The software team must secure its software delivery process to avoid vulnerability and security breaches. This needs to be achieved with existing tool chains and without extensive rework of the delivery processes. This talk will present strategies and techniques for providing visibility into the true risk of the existing vulnerabilities, preventing the introduction of security issues in the software, resolving vulnerabilities in production environments quickly, and capturing the deployment bill of materials (DBOM).
Speakers:
Bob Boule
Robert Boule is a technology enthusiast with PASSION for technology and making things work along with a knack for helping others understand how things work. He comes with around 20 years of solution engineering experience in application security, software continuous delivery, and SaaS platforms. He is known for his dynamic presentations in CI/CD and application security integrated in software delivery lifecycle.
Gopinath Rebala
Gopinath Rebala is the CTO of OpsMx, where he has overall responsibility for the machine learning and data processing architectures for Secure Software Delivery. Gopi also has a strong connection with our customers, leading design and architecture for strategic implementations. Gopi is a frequent speaker and well-known leader in continuous delivery and integrating security into software delivery.
Elevating Tactical DDD Patterns Through Object CalisthenicsDorra BARTAGUIZ
After immersing yourself in the blue book and its red counterpart, attending DDD-focused conferences, and applying tactical patterns, you're left with a crucial question: How do I ensure my design is effective? Tactical patterns within Domain-Driven Design (DDD) serve as guiding principles for creating clear and manageable domain models. However, achieving success with these patterns requires additional guidance. Interestingly, we've observed that a set of constraints initially designed for training purposes remarkably aligns with effective pattern implementation, offering a more ‘mechanical’ approach. Let's explore together how Object Calisthenics can elevate the design of your tactical DDD patterns, offering concrete help for those venturing into DDD for the first time!
Dev Dives: Train smarter, not harder – active learning and UiPath LLMs for do...UiPathCommunity
💥 Speed, accuracy, and scaling – discover the superpowers of GenAI in action with UiPath Document Understanding and Communications Mining™:
See how to accelerate model training and optimize model performance with active learning
Learn about the latest enhancements to out-of-the-box document processing – with little to no training required
Get an exclusive demo of the new family of UiPath LLMs – GenAI models specialized for processing different types of documents and messages
This is a hands-on session specifically designed for automation developers and AI enthusiasts seeking to enhance their knowledge in leveraging the latest intelligent document processing capabilities offered by UiPath.
Speakers:
👨🏫 Andras Palfi, Senior Product Manager, UiPath
👩🏫 Lenka Dulovicova, Product Program Manager, UiPath
DevOps and Testing slides at DASA ConnectKari Kakkonen
My and Rik Marselis slides at 30.5.2024 DASA Connect conference. We discuss about what is testing, then what is agile testing and finally what is Testing in DevOps. Finally we had lovely workshop with the participants trying to find out different ways to think about quality and testing in different parts of the DevOps infinity loop.
UiPath Test Automation using UiPath Test Suite series, part 4DianaGray10
Welcome to UiPath Test Automation using UiPath Test Suite series part 4. In this session, we will cover Test Manager overview along with SAP heatmap.
The UiPath Test Manager overview with SAP heatmap webinar offers a concise yet comprehensive exploration of the role of a Test Manager within SAP environments, coupled with the utilization of heatmaps for effective testing strategies.
Participants will gain insights into the responsibilities, challenges, and best practices associated with test management in SAP projects. Additionally, the webinar delves into the significance of heatmaps as a visual aid for identifying testing priorities, areas of risk, and resource allocation within SAP landscapes. Through this session, attendees can expect to enhance their understanding of test management principles while learning practical approaches to optimize testing processes in SAP environments using heatmap visualization techniques
What will you get from this session?
1. Insights into SAP testing best practices
2. Heatmap utilization for testing
3. Optimization of testing processes
4. Demo
Topics covered:
Execution from the test manager
Orchestrator execution result
Defect reporting
SAP heatmap example with demo
Speaker:
Deepak Rai, Automation Practice Lead, Boundaryless Group and UiPath MVP
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
Securing your Kubernetes cluster_ a step-by-step guide to success !KatiaHIMEUR1
Today, after several years of existence, an extremely active community and an ultra-dynamic ecosystem, Kubernetes has established itself as the de facto standard in container orchestration. Thanks to a wide range of managed services, it has never been so easy to set up a ready-to-use Kubernetes cluster.
However, this ease of use means that the subject of security in Kubernetes is often left for later, or even neglected. This exposes companies to significant risks.
In this talk, I'll show you step-by-step how to secure your Kubernetes cluster for greater peace of mind and reliability.
Securing your Kubernetes cluster_ a step-by-step guide to success !
Cassandra & the Acunu Data Platform
1. Cassandra & the
Acunu Data
Platform
Tom Wilkie
Founder & VP Engineering
@tom_wilkie
2. Before the Flood
1990
Small databases
BTree indexes
BTree File systems
RAID
Old hardware
3. Two Revolutions
2010
Distributed, shared-nothing databases
Write-optimised indexes Write-optimised indexes
BTree file systems BTree file systems
RAID ... RAID
New hardware New hardware
4. Bridging the Gap
2011
Distributed, shared-nothing databases
Castle Castle
...
New hardware New hardware
17. interface
userspac
values
In-kernel
async, shared
memory ring workloads
shared buffers
kernelspace
interface
Doubling Array Streaming interface
range key buffered key buffered
queries insert value insert get value get
Doubling Arrays
doubling array
mapping layer
insert Bloom filters
queues key
get
arrays x
range arrays
queries management
key
insert merges
Arrays
mapping layer
modlist btree
key Version tree
insert btree
key
get
btree
range
queries value arrays
castle_{da,bloom}.c
18. B-Tree
B
• If node is full, split and
insert new node into
parent (recurse)
logB N
• For random inserts,
nodes placed randomly
on disk
19. Range Query
Update
(Size Z)
O(logB N) O(Z/B)
B-Tree random IOs random IOs
B = “block size”, say 8KB at 100 bytes/entry ~= 100 entries
20. Doubling Array
Inserts
2 2 9
9
Buffer arrays in memory
until we have > B of them
21. Doubling Array
Inserts
11 2 9 2 8 9 11
8 8 11
etc...
Similar to log-structured merge trees (LSM), cache-
oblivious lookahead array (COLA), ...
27. interface
userspac
values
In-kernel
async, shared
memory ring workloads
shared buffers
kernelspace
interface
Doubling Array Streaming interface
range key buffered key buffered
queries insert value insert get value get
Doubling Arrays
doubling array
mapping layer
insert Bloom filters
queues key
get
arrays x
range arrays
queries management
key
insert merges
Arrays
mapping layer
modlist btree
key Version tree
insert btree
key
get
btree
range
queries value arrays
castle_{da,bloom}.c
28. Doubling Arrays
doubling array
mapping layer
“Mod-list” B-Tree
insert Bloom filters
queues key
get
arrays x
range arrays
queries management
key
insert merges
Arrays
mapping layer
modlist btree
key Version tree
insert btree
key
get
btree
range
queries value arrays
Cache
block mapping &
cacheing layer
"Extent" layer
prefetcher
extent block
extent cache
freespace
allocator
manager
flusher
& mapper
page cache
castle_{btree,versions}.c
&
29. Copy-on-Write BTree
Idea:
• Apply path-copying [DSST] to
the B-tree
Problems:
• Space blowup: Each update may
rewrite an entire path
• Slow updates: as above
A log file system makes updates sequential, but relies on
random access and garbage collection (achilles heel!)
30. Range
Update Space
Query
CoW B- O(logB Nv) O(Z/B)
O(N B logB Nv)
Tree random IOs random IOs
Nv = #keys live (accessible) at version v
32. “BigTable” snapshots
v1 v2
• Inserts produce arrays
2
1 a 2
1 b 1 c • Snapshots increment ref
counts on arrays
• Merges product more
arrays, decrement ref
count on old arrays
33. “BigTable” snapshots
v1 v2
• Inserts produce arrays
1 a 1 b • Snapshots increment ref
counts on arrays
• Merges product more
1 a b c
arrays, decrement ref
count on old arrays
34. “BigTable” snapshots
v1 v2
• Inserts produce arrays
1 a 1 b • Snapshots increment ref
counts on arrays
• Merges product more
1 a b c
arrays, decrement ref
count on old arrays
• Space blowup
35. Range
Update Space
Query
CoW B- O(logB Nv) O(Z/B)
O(N B logB Nv)
Tree random IOs random IOs
“BigTable” O((log N)/B) O(Z/B)
O(VN)
style DA sequential IOs sequential IOs
Nv = #keys live (accessible) at version v
36. “Mod-list” BTree
Idea:
• Apply fat-nodes [DSST] to the
B-tree
• ie insert (key, version, value)
tuples, with special operations
Problems:
• Similar performance to a BTree
If you limit the #versions, can be constructed
sequentially, and embedded into a DA
37. Range
Update Space
Query
CoW B- O(logB Nv) O(Z/B)
O(N B logB Nv)
Tree random IOs random IOs
“BigTable” O((log N)/B) O(Z/B)
O(VN)
LevelDB
style DA sequential IOs sequential IOs
“Mod-list” O((log N)/B) O(Z/B)
CASTLE
in a DA sequential IOs sequential IOs
O(N)
Nv = #keys live (accessible) at version v
45. • Castle: like BDB, but for Big Data
• 2 orders of magnitude better
performance and predictability
• Part of the Acunu Data Platform
46. Questions?
Tom Wilkie
@tom_wilkie
tom@acunu.com
http://bitbucket.org/acunu
http://github.com/acunu
http://www.acunu.com/download
http://www.acunu.com/insights
47. References
[LSM] The Log-Structured Merge-Tree (LSM-Tree)
Patrick O'Neil, Edward Cheng, Dieter Gawlick,
Elizabeth O'Neil Stratified B-trees and versioned dictionaries, - Andy
http://staff.ustc.edu.cn/~jpq/paper/flash/1996-The Twigg, Andrew Byde, Grzegorz Miłoś, Tim Moreton,
%20Log-Structured%20Merge-Tree%20%28LSM- John Wilkes, Tom Wilkie, HotStorage’11
Tree%29.pdf http://www.usenix.org/event/hotstorage11/tech/
final_files/Twigg.pdf
[COLA] Cache-Oblivious Streaming B-trees,
Michael A. Bender et al [RDA] Random duplicate storage strategies for
http://www.cs.sunysb.edu/~bender/newpub/ load balancing in multimedia servers, 2000, Joep
BenderFaFi07.pdf Aerts and Jan Korst and Sebastian Egner
http://www.win.tue.nl/~joep/IPL.ps
[DSST] Making Data Structures Persistent - J. R.
Driscoll, N. Sarnak, D. D. Sleator, R. E. Tarjan, Making Apache, Apache Cassandra, Cassandra, Hadoop, and
Data Structures Persistent, Journal of Computer the eye and elephant logos are trademarks of the
and System Sciences,Vol. 38, No. 1, 1989 Apache Software Foundation.
http://www.cs.cmu.edu/~sleator/papers/making-
data-structures-persistent.pdf