Robust Stream Processing With Apache Flink
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My talk from Reactive Summit 2016 - Not terribly interesting without the actual talk since most of it was live coding and demo.
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With these technologies we are currently working on two use cases: a near real-time business process monitoring solution and streaming ETL.
Monitoring our business processes enables us to check if technically the Zalando platform works. It also helps us analyze data streams on the fly, e.g. order velocities, delivery velocities and to control service level agreements.
On the other hand, streaming ETL is used to relinquish resources from our relational data warehouse, as it struggles with increasingly high loads. In addition to that, it also reduces the latency and facilitates the platform scalability.
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Apache Pulsar is the next generation messaging and streaming data system. It was originally built at Yahoo, and has graduated from Apache Incubator and become a Top-Level-Project. Pulsar separates messaging serving and data storage into two layers. Such layered architecture provides high throughput and low-latency while ensuring high availability and scalability. Pulsar’s segment centric storage design along with layered architecture makes Pulsar a perfect unbounded streaming data system, which can well fit into Flink’s computation model.
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Stream Processing in conjunction with a Consistent, Durable, Reliable stream storage is kicking the revolution up a notch in Big Data processing. This modern paradigm is enabling a new generation of data middleware that delivers on the streaming promise of a simplified and unified programming model. From data ingest, transformation, and messaging to search, time series and more, a robust streaming data ecosystem means we’ll all be able to more quickly build applications that solve problems we could not solve before.
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AirStream is a realtime stream computation framework that supports Flink as one of its processing engines. It allows engineers and data scientists at Airbnb to easily leverage Flink to build real time data pipelines and feedback loops. Multiple mission critical applications have been built on top of it. In this talk, we will start with an overview of AirStream, and describe how we have designed Airstream to leverage SQL support in Flink to allow users to easily build real time data pipelines. We will go over a few production use cases such as building a user activity profiler and building user identity mapping in realtime. We will also cover how we have integrated Airstream into the data infrastructure ecosystem at Airbnb through easily configurable connectors such as Kafka and Hive that allow users to easily leverage these components in their pipelines.
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http://flink-forward.org/kb_sessions/declarative-stream-processing-with-streamsql-and-cep/
Complex event processing (CEP) and stream analytics are commonly treated as distinct classes of stream processing applications. While CEP workloads identify patterns from event streams in near real-time, stream analytics queries ingest and aggregate high-volume streams. Both types of use cases have very different requirements which resulted in diverging system designs. CEP systems excel at low-latency processing whereas engines for stream analytics achieve high throughput. Recent advances in open source stream processing yielded systems that can process several millions of events per second at sub-second latency. Systems like Apache Flink enable applications that include typical CEP features as well as heavy aggregations. In this talk we will show how Apache Flink unifies CEP and stream analytics workloads. Guided by examples, we introduce Flink’s CEP-enriched StreamSQL interface and discuss how queries are compiled, optimized, and executed on Flink.
Flink Forward San Francisco 2019: Apache Beam portability in the times of rea...
Apache Beam was open sourced by the big data team at Google in 2016, and has become an active community with participants from all over. Beam is a framework to define data processing workflows and run them on various runners (Flink included). In this talk, I will talk about some cool things you can do with Beam + Flink such as running pipelines written in Go and Python; then I’ll mention some cool tools in the Beam ecosystem. Finally, we’ll wrap up with some cool things we expect to be able to do soon - and how you can get involved.
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High availability and reliability are important requirements to Uber services, and the services shall tolerate datacenter failures in a region and fail over to another region. In this talk, we will present the active-active Apache Kafka® at Uber and how it facilitates disaster discovery across regions for Uber services. In particular, we will highlight the key components including topic replication, topic aggregation, offsets sync and then walk through several use cases of their disaster recovery strategy using active-active Kafka. Lastly, we will present several interesting challenges and the future work planned.
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In the last decade, many distributed stream processing engines (SPEs) were developed to perform continuous queries on massive online data. The central design principle of these engines is to handle queries that potentially run forever on data streams with a query-at-a-time model, i.e., each query is optimized and executed separately. In many real applications, streams are not only processed with long-running queries, but also thousands of short-running ad-hoc queries. To support this efficiently, it is essential to share resources and computation for stream ad-hoc queries in a multi-user environment.
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Siphon is a highly available and reliable distributed pub/sub system built using Apache Kafka. It is used to publish, discover and subscribe to near real-time data streams for operational and product intelligence. Siphon is used as a “Databus” by a variety of producers and subscribers in Microsoft, and is compliant with security and privacy requirements. It has a built-in Auditing and Quality control. This session will provide an overview of the use of Kafka at Microsoft, and then deep dive into Siphon. We will describe an important business scenario and talk about the technical details of the system in the context of that scenario. We will also cover the design and implementation of the service, the scale, and real world production experiences from operating the service in the Microsoft cloud environment.
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Unconference Round Table Notes
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The future of real-time stream processing
WASM (Web Assembly)
Petabyte, 5000 Node Clusters, Smart Hyper Scaling
Multi-language support (Python, Rust, Kotlin, Golang, Carbon, JVM)
Machine Learning, Deep Learning, AI and Advanced Math
Low Code Development like Apache NiFi, DataFlow Designer, SQL
Dynamic Hybrid Deployment
Citizen Stream Engineer
IoT, Edge Streaming and Hybrid Edge Streaming
Java 20, 21; Java Loom Virtual Threading
Ultra low latency, trillions of events per second, massive RAM/network
Current challenges of real-time stream processing and proposed solutions
Deployment, Automation and Scaling
Choosing right project/sizing for use case
Simple Event Processing vs Complex Event Processing
Leveraging existing applications
Developer Skills
Self management and monitoring
Cost issues -> autoscaling, optimizing, performance, hybrid deployment
Performance / Benchmarking real-time stream processing
Kafka/Pulsar: https://openmessaging.cloud/docs/benchmarks/
NiFi: https://blog.cloudera.com/benchmarking-nifi-performance-and-scalability/
Flink: https://github.com/ververica/flink-sql-benchmark
Hazelcast: https://hazelcast.com/press-release/hazelcast-demonstrates-cloud-efficiency-real-time-stream-processing-of-one-billion-events-per-second/
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Current challenges of real-time stream processing and proposed solutions
Performance / Benchmarking real-time stream processing
The future of real-time stream processing
Current trends of real-time stream processing in 2023
Lightweight serverless
Hazelcast
SQL
Flink
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Java 17+
Managed Clusters, Containers and Environments
Real-Time Analytics
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Capital One supports interactions with real-time streaming transactional data using Apache Kafka®. Kafka helps deliver information to internal operation teams and bank tellers to assist with assessing risk and protect customers in a myriad of ways.
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Essentials of Automations: Optimizing FME Workflows with Parameters
Are you looking to streamline your workflows and boost your projects’ efficiency? Do you find yourself searching for ways to add flexibility and control over your FME workflows? If so, you’re in the right place.
Join us for an insightful dive into the world of FME parameters, a critical element in optimizing workflow efficiency. This webinar marks the beginning of our three-part “Essentials of Automation” series. This first webinar is designed to equip you with the knowledge and skills to utilize parameters effectively: enhancing the flexibility, maintainability, and user control of your FME projects.
Here’s what you’ll gain:
- Essentials of FME Parameters: Understand the pivotal role of parameters, including Reader/Writer, Transformer, User, and FME Flow categories. Discover how they are the key to unlocking automation and optimization within your workflows.
- Practical Applications in FME Form: Delve into key user parameter types including choice, connections, and file URLs. Allow users to control how a workflow runs, making your workflows more reusable. Learn to import values and deliver the best user experience for your workflows while enhancing accuracy.
- Optimization Strategies in FME Flow: Explore the creation and strategic deployment of parameters in FME Flow, including the use of deployment and geometry parameters, to maximize workflow efficiency.
- Pro Tips for Success: Gain insights on parameterizing connections and leveraging new features like Conditional Visibility for clarity and simplicity.
We’ll wrap up with a glimpse into future webinars, followed by a Q&A session to address your specific questions surrounding this topic.
Don’t miss this opportunity to elevate your FME expertise and drive your projects to new heights of efficiency.
Builder.ai Founder Sachin Dev Duggal's Strategic Approach to Create an Innova...
In today's fast-changing business world, Companies that adapt and embrace new ideas often need help to keep up with the competition. However, fostering a culture of innovation takes much work. It takes vision, leadership and willingness to take risks in the right proportion. Sachin Dev Duggal, co-founder of Builder.ai, has perfected the art of this balance, creating a company culture where creativity and growth are nurtured at each stage.
PHP Frameworks: I want to break free (IPC Berlin 2024)
In this presentation, we examine the challenges and limitations of relying too heavily on PHP frameworks in web development. We discuss the history of PHP and its frameworks to understand how this dependence has evolved. The focus will be on providing concrete tips and strategies to reduce reliance on these frameworks, based on real-world examples and practical considerations. The goal is to equip developers with the skills and knowledge to create more flexible and future-proof web applications. We'll explore the importance of maintaining autonomy in a rapidly changing tech landscape and how to make informed decisions in PHP development.
This talk is aimed at encouraging a more independent approach to using PHP frameworks, moving towards a more flexible and future-proof approach to PHP development.
Epistemic Interaction - tuning interfaces to provide information for AI support
Paper presented at SYNERGY workshop at AVI 2024, Genoa, Italy. 3rd June 2024
https://alandix.com/academic/papers/synergy2024-epistemic/
As machine learning integrates deeper into human-computer interactions, the concept of epistemic interaction emerges, aiming to refine these interactions to enhance system adaptability. This approach encourages minor, intentional adjustments in user behaviour to enrich the data available for system learning. This paper introduces epistemic interaction within the context of human-system communication, illustrating how deliberate interaction design can improve system understanding and adaptation. Through concrete examples, we demonstrate the potential of epistemic interaction to significantly advance human-computer interaction by leveraging intuitive human communication strategies to inform system design and functionality, offering a novel pathway for enriching user-system engagements.
Welocme to ViralQR, your best QR code generator.
Welcome to ViralQR, your best QR code generator available on the market!
At ViralQR, we design static and dynamic QR codes. Our mission is to make business operations easier and customer engagement more powerful through the use of QR technology. Be it a small-scale business or a huge enterprise, our easy-to-use platform provides multiple choices that can be tailored according to your company's branding and marketing strategies.
Our Vision
We are here to make the process of creating QR codes easy and smooth, thus enhancing customer interaction and making business more fluid. We very strongly believe in the ability of QR codes to change the world for businesses in their interaction with customers and are set on making that technology accessible and usable far and wide.
Our Achievements
Ever since its inception, we have successfully served many clients by offering QR codes in their marketing, service delivery, and collection of feedback across various industries. Our platform has been recognized for its ease of use and amazing features, which helped a business to make QR codes.
Our Services
At ViralQR, here is a comprehensive suite of services that caters to your very needs:
Static QR Codes: Create free static QR codes. These QR codes are able to store significant information such as URLs, vCards, plain text, emails and SMS, Wi-Fi credentials, and Bitcoin addresses.
Dynamic QR codes: These also have all the advanced features but are subscription-based. They can directly link to PDF files, images, micro-landing pages, social accounts, review forms, business pages, and applications. In addition, they can be branded with CTAs, frames, patterns, colors, and logos to enhance your branding.
Pricing and Packages
Additionally, there is a 14-day free offer to ViralQR, which is an exceptional opportunity for new users to take a feel of this platform. One can easily subscribe from there and experience the full dynamic of using QR codes. The subscription plans are not only meant for business; they are priced very flexibly so that literally every business could afford to benefit from our service.
Why choose us?
ViralQR will provide services for marketing, advertising, catering, retail, and the like. The QR codes can be posted on fliers, packaging, merchandise, and banners, as well as to substitute for cash and cards in a restaurant or coffee shop. With QR codes integrated into your business, improve customer engagement and streamline operations.
Comprehensive Analytics
Subscribers of ViralQR receive detailed analytics and tracking tools in light of having a view of the core values of QR code performance. Our analytics dashboard shows aggregate views and unique views, as well as detailed information about each impression, including time, device, browser, and estimated location by city and country.
So, thank you for choosing ViralQR; we have an offer of nothing but the best in terms of QR code services to meet business diversity!
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Securing your Kubernetes cluster_ a step-by-step guide to success !
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In this talk, I'll show you step-by-step how to secure your Kubernetes cluster for greater peace of mind and reliability.
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Robust Stream Processing With Apache Flink
- 1. Robust Stream Processing with Apache Flink Jamie Grier @jamiegrier jamie@data-artisans.com
- 2. Who am I? • Director of Applications Engineering at data Artisans • Previously working on streaming computation at Twitter, Gnip and Boulder Imaging • Involved in various kinds of stream processing for about a decade • High-speed video, social media streaming, general frameworks for stream processing
- 3. Overview • What is Apache Flink? • What is Stateful Stream Processing? • Windowed computation over streams • Robust Time Handling (Event Time vs Processing Time) • Robust Failure Handling • Robust Planned Downtime Handling • Robust Reprocessing
- 4. What is Apache Flink? s an open source platform for distributed stream and batch da
- 6. Stream Processing Your Code Data Stream Data Stream
- 7. Stateful Stream Processing Your Code Data Stream Data Stream State
- 9. Distributed and Parallel Deployment MapR Stream s Files Kafka Filter Pars e Join / Sum Influx DB C*
- 10. Benchmarking on HPC Cluster 0 18,000,000 36,000,000 54,000,000 72,000,000 90,000,000 Throughput: msgs/sec 10 Machines with 40 GigE 72 Million msgs/sec
- 11. Robust Stream Processing with Apache Flink
- 12. Code Example!
- 13. Amplifier Function Amplifier Amplified Stream State* *State: Amplification factors for each key
- 14. Windowing
- 16. Windowing in Processing Time 0 1 2 34 56 7 8 9 0 1 2 3 4 5 6 7 8 9 Processing Time Event Time
- 17. Windowing in Event Time 0 1 2 34 56 7 8 9 0 1 2 3 4 5 6 7 8 9 Event Time
- 18. Processing Time = Errors!
- 19. Event Time = Accuracy
- 20. Failure Handling
- 24. Questions?
- 25. Thanks!