Hadoop

Vandome Cycles are providing drop in bike check/repair sessions: • Barking Riverside Bike Hub IG11 0FJ: Opening Times: Every Mon & Thu 3pm-7pm and Sat: 9am-5pm • The Fiddlers, Dagenham, RM8 3HH: Every Saturday 10am – 2pm

Join us for some fun, competitive, but friendly games at our 4-court sports hall. We use Yonex Mavis 600 Nylon shuttles during the 2-hour session. **PAYMENT** * **Session Fee: £9** * We are cashless, kindly pay the session fee **by 5pm** on the session day. You are welcomed to pay early! You can even pay when you book! * If no payment is received by 5pm on the session day, you may be removed from the list to allow for someone on the waitlist to take the spot * Please use **“your meetup name + date of event”** as payment reference * **Account name:** Thomas Lam * **Sort code:** 04-00-03 * **Account number:** 7478 8608 **LATE CANCELLATION OR NO-SHOW** * **All** **no-shows or late cancellations** (24 hrs or less) will be charged if your spot is not taken by someone else - you will have a title next to your name with the amount and date owed. * Members with 2 no shows/late cancellations will be removed from the group unless outstanding payment is received * **The late cancellation policy** is set up to discourage last-minute cancellations and therefore applies with or without the presence of a waitlist * **Note:** If you are on the Waitlist and a spot becomes available, you will automatically be bumped onto the On list provided the event has not yet started. It is your responsibility to **remove yourself from the waitlist** if you can no longer make it to avoid being charged a no-show if someone cancels late. **PLAYING** * Please wait to be marked off before entering the hall. * Sessions are to finish promptly on the hour by school requests. * If you finish a match with 5 minutes to go, please start packing up instead of starting a new game. **RACKET HIRE** * Please note that we won't be hiring out rackets, so kindly bring your own racket. **PARKING** * There is parking available, but it is now paid parking. Parking is opposite the entrance. Please check the signs for parking payment instructions. **TRACK & TRACE** * We will collect your phone number on-site. Your phone number will also be used in case of fire to contact you if you have not made it to the fire evacuation areas. You can see maps at the venue. We are excited to see you guys on the court! Team LSBC

"Outrageously funny, compulsively readable, and subversive," Bella Mackie's bestselling debut is a semi-epic odyssey through class, family, love and murder. Soon to be adapted as an 8-episode Netflix series and already freely available as one of those [quirkily abridged BBC audiobooks](https://www.bbc.co.uk/sounds/brand/p0b97jn0), it contains descriptions of death, gore, mental illness, racism, sex, violence, stalking, and of course murder. Don't forget you can try this free online preview before deciding to attend: [https://www.google.co.uk/books/edition/How_to_Kill_Your_Family/P5-eDwAAQBAJ?hl=en&gbpv=1](https://www.google.co.uk/books/edition/How_to_Kill_Your_Family/P5-eDwAAQBAJ?hl=en&gbpv=1) If you've been before and would like to help pay for the Meetup group, you can contribute "£1-2" per meeting (now collected around Dec & Jun). This optional payment does not apply to your first meeting and no-one is turned away for lack of funds. General plan: by 7pm some of us should be in the upstairs room at the pub but we usually start by discussing books to read in future in case anyone arrives late. Typically we'll talk about the book until after 8pm, when there's a short break to go to the bar, then any further discussion till after 9, though of course you can leave at any point. The Shirker's Rest takes cards, not cash, and serves a range of soft drinks, wine and spirits in addition to their beer and cider selection [https://theshirkersrest.co.uk/drinks/ ](https://theshirkersrest.co.uk/drinks/)\- they don't have a kitchen but encourage you to order from [https://yardsalepizza.com/menu/](https://yardsalepizza.com/menu/) ..! **COVID-19 safety measures** This is indoors though we should be able to open at least one window. Please do not attend if you feel unwell, or have a positive Covid test/symptoms - you are encouraged to a) be as vaccinated as you can, b) wear a mask if you prefer, c) follow current Covid precautions, especially if you're at risk of passing on or catching the virus.

**BOOK HERE**: https://sportas.co.uk/games/43402 **Game Description:** 🧡Come and join us for a casual friendly & social badminton session in Archway. This venue consists of 4 courts in total. 🚨Directions🚨 📍Enter via Thornbury Square road and walk all the way downhill. (Note: you won’t be able to enter through the school!) 🚶‍♂️10 minute walk from Archway or Highgate tube stations (Northern Line) 🚗 Free car parking on site 🚿 Showers, changing rooms, water fountain & toilets are available in **Rules** 🏸The session is for mixed ability players so please be positive and encouraging to all players. We highly encourage you to read the rules for classic doubles prior to the session so we can run the games smoothly. 👯‍♀️We play doubles for the whole time and keep rotating courts so everyone gets to play with each other. We use Yonex Mavis 300 Nylon Shuttle cocks. We also have a few spare rackets.

**Venue**: Riverbank House, 2 Swan Ln, London EC4R 3AD **Please note**: 1. 🚨🚨🚨A valid photo ID is required by building security. 🚨🚨🚨 2. This event follows the **[NumFOCUS Code of Conduct](https://numfocus.org/code-of-conduct)**. Please familiarise yourself with it before attending. If your RSVP status says "You're going" you will be able to get in. No need to show your RSVP confirmation when signing in. If you can no longer make it, please unRSVP as soon as possible. \*\*\* **Code of Conduct**: This event follows the **[NumFOCUS Code of Conduct](https://numfocus.org/code-of-conduct)**. Please get in touch with the organisers with any questions or concerns. \*\*\* As always, there will be free food and drinks, generously provided by our host, Man Group. \*\*\* **Main Talks** **1\. AI Agents as Multipliers: What They Improve and What They Don’t** - [Alper Nebi Kanlı](https://www.linkedin.com/in/alpernkanli/overlay/about-this-profile/) **2\. The lifetime of a write\, 3 ways: in Postgres\, Kafka and Flink** - [Celeste Horgan](https://www.linkedin.com/in/celeste-horgan/) In this talk we’ll take a step back to look at three data services: Postgres, Apache Kafka and Apache Iceberg, and how they each handle writes. In doing so, we’ll trace a history through how data services have evolved in the world of distributed systems and big data. We’ll understand the key differences and similarities between these services. Finally, we’ll take a look at what’s coming next in the world of open source data, from Postgres and beyond. **⚡ Lightning Talks** **Why are LLMs Challenged by Chess?** - [Ian Ozsvald](https://www.linkedin.com/in/ianozsvald/) **Logistics** Doors open at **6.30 pm** (get there early as you'll need to sign in with building security). Talks start at **7:00 pm**, with drinks afterwards from **9:00 pm** at The Banker (EC4). We have reduced capacity for this event, but there will be plenty of people to discuss data science questions with! Please unRSVP in good time if you realise you can't make it. We're limited by building security on the number of attendees, so please free up your place for your fellow community members!

Join OutdoorLads weekly Saturday bouldering morning event at Vauxwall West - please check our main event page on our website (link in the comments below). We welcome all members of the LGBTQ+ community, and you will be socialising with a supportive group boulderers who are always happy to introduce complete beginners to the sport or solve difficult bouldering problems together. This event is for members of all levels of experience and all are welcome to come along to any of the sessions. Bouldering is unique. There are few sports out there that offer a mental and physical challenge no matter what skill level you are at. Each route consists of several holds that the climber uses, focusing on problem-solving and technical movements to help them reach the top. No two routes are ever the same, and the colour-coded system indicates the difficulty level, so there's a climb for everyone to enjoy! If you have never tried bouldering before, please ensure that you have gone through the centre's safety and induction video beforehand (https://londonclimbingcentres.co.uk/pre-register/) as you will be required to answer a few safety questions when registering at the centre.

Hi folks! Welcome to our January Cloud Native London meetup, our first of 2026! Join us to hear from our three great speakers and network with your fellow techies over pizza and drinks, or alternatively chat and following along on Youtube! 6:00 Pizza and drinks 6:30 Welcome 6:45 Feature Flags: A Safety Net in the AI Era (Kyle Johnson, Flagsmith) 7:15 Context driven AI Agents (Shubhangi Goyal) 7:45 Break 8:00 Why Cloud Cost Assessment Must Come Before Cloud-Native Build (Mawuko Jeffrey Wilson, BrassicaPay) 8:30 Wrap up See you there! Cheryl (@oicheryl) **Feature Flags: A Safety Net in the AI Era (Kyle Johnson, Flagsmith)** Identifying new safety mechanisms for developers has become vital as AI innovation progresses at speeds previously only hypothesised and engineering teams continue to incorporate AI into their workflows. Feature flags, by separating deployments from releases, reduce the risk of releasing AI-assisted code, while also automating release strategies. The promise of AI—speed and efficiency—is, in actuality, only half true. It's fast, but it's not efficient. Teams still need to comb through, test, and fix the code. Without feature flags, the bottleneck simply moves. *Co-Founder at Flagsmith: [https://www.linkedin.com/in/kyle-johnson-56247365/](https://www.linkedin.com/in/kyle-johnson-56247365/)* **Context driven AI Agents (Shubhangi Goyal)** In this session, I will explore how agents are built and use dynamic context to execute complex tasks and deliver real value. This also includes using context engineering to move beyond single prompt based interactions. *Find me at [https://www.linkedin.com/in/shubhangi-goyal-0ab69795/](https://www.linkedin.com/in/shubhangi-goyal-0ab69795/)* **Why Cloud Cost Assessment Must Come Before Cloud-Native Build (Mawuko Jeffrey Wilson, BrassicaPay)** Many organisations adopt the cloud-nativve architectures with scalability and speed in mind; yet only realise after launching that cloud costs have spiralled beyond expectations and many issues. This talk will explore why cost surprises are so common in cloud-native journeys and argues that cost assessment must happen before migration, before architecture decisions, and before code is written. Drawing from real-world consulting experience and industry research, the session examines how early design choices-such as service selection, consumption models, environments, and governance-directly influence long-term cloud spend across AWS, Azure, and GCP (others). We will also look at why cost alerts, budgets, and subscriptions-while valuable-are reactive controls, not substitutes for upfront cost modelling. Attendees will leave with a practical framework for embedding cost assessment into cloud-native planning, enabling teams to build scalable systems without cost becoming an after-the-fact shock. And having to explain figures and cloud spend when costs goes high. This will also help team members to be accountable is RACI models or framework are adopted in addition to cost control strategies. *Mawuko Jeffrey Wilson is a Cloud Security Lead (Engineer) and Architect with hands-on experience designing, securing, and optimising cloud-native platforms across fintech, cost-control, public sector, and product-led technology environments. He specialises in cloud governance, cost-aware architecture (FinOps), and security-first design, helping organisations align cloud adoption with financial sustainability. Mawuko has worked across AWS, Azure, and GCP ecosystems, supporting migration planning, cloud security controls, and operational optimisation. Alongside industry work, he loves networking, learning new things, and sharing, and bringing a data-driven lens to cloud decision-making-particularly around cost forecasting, security, risk, governance, and operational efficiency.* ***Check out [https://www.oicheryl.com/cloudnativelondon](https://www.oicheryl.com/cloudnativelondon) if you're interested in speaking or sponsoring.***

**★Sign up & Pay in advance** * Once you sign up, complete a payment in 20 minutes. If we don't see your payment, we will remove you from the list (you won't be able to sign up for the same session once you are removed!) * If you show up without being on the list, you won't be able to play (We are very strict with controlling the number of players) * Account details: Account name: TOSHIAKI KIM Account number: **86852843** Sort code: **04-00-04** Fee: **£8** Reference: "**Type your name that matches your Meetup user name**" (Otherwise, we won't be able to verify your name on the attendance list and you may be accidently removed from the list!) **★Other important stuff** * We don't accept a cash payment. If you show up without completing the payment in advance, we will have to refuse to allow you to play. **★ ADVANCED-INTERMIDIATE LEVEL INDOOR BASKETBALL SESSION** * Are you an experienced basketball player? Do you wanna run a lot and play competitive games? Then, this is the right one for you! **★ Key points** * Max 15 players * Winners stay on 3 times in a row. * Full-court games but may switch to half-court games depending on the turnout. * Call your own foul * Avoid hanging on the ring; you will be liable if you break the ring! **★ What if you cannot make it to the session whilst having completed the payment already?** * As per our refund policy, we don’t provide a refund or carry over a fee unless your request is in line with our refund policy * Our friendly recommendation is to resell your spot to another member on our WhatsApp group * Once you sold your spot, please let us know this on the WhatsApp group so the organiser is aware **★ Join IBG WhatsApp group!** * Joining our WhatsApp group will allow you to stay connected with members, raise questions and find a member who is willing to buy your spot in case you cannot make it to the session! [https://chat.whatsapp.com/JZd8l5nDh3eAI8YNgBZXU9](https://chat.whatsapp.com/JZd8l5nDh3eAI8YNgBZXU9) **★Disclaimer, GDPR, Refund & Attendance Policy** * By attending our session, you will agree to our policies [http://www.keepandshare.com/doc5/view.php?id=30630&da=y](http://www.keepandshare.com/doc5/view.php?id=30630&da=y) See you on the court! Wish you peace, love and sweat. MIK FIT

We are back! This is going to be a monthly IN PERSON meet up in London. A very big thank you goes to Accurx who is hosting us in their amazing Shoreditch offices. This will include access to facilities including coffee! 😻☕️ **Want to know more? 👇** As with all CoffeeOps, this is an interactive, chatty, build your own adventure type of meet-up. Instead of booking in experts to *learn* *from*, we gather a group of practitioners to ***learn*** ***with***. We have been running for over 4 years now and often get feedback that this is the most useful meetup people join! The event is approximately 90 minutes and always starts by brainstorming topics to discuss. The group then votes on the most relevant/interesting to them and we then cycle through the topics trying to discuss each deeply, but in a time bound slot. To get an idea of topics, you can check out our remote board [here](https://easyretro.io/publicboard/h404NF84Uje4tCcxpJdHr4Ycs9B3/a4a35d2b-181b-409b-832e-a729be1af79c). The general gist is anything is fair game, though we tend to revolve around software delivery and definitely lean towards the more Ops-y or DevOps-y side of things.

Lorenzo Foti (2024 and 2025 Excel World Championship semi-finalist) and Lara Holding-Jones share some of their lessons learnt from competitive excel esports Great functions we'd never use in working life but use all the time for esports (sins) and the best practices we've learnt from esports that you absolutely should use in your day job (wins). These are based on lessons they've learnt through competitive excelling, as well as broader working life. So, they will share a little bit about Excel esports, including some example questions. Great if you're thinking about signing up to the UK and/or global competitions. But, the session won't exclusively be about esports, it's about real life, so you'll find this really beneficial, even if you aren't interested in competing. This is an **in-person only** event to be held at Meeting Room 3 Canada Water Library 21 Surrey Quays Rd, London SE16 7AR

The January Ohio North Database Training user group meeting will be held on **January 6th, 2025 at 5:00PM**. This will be a **HYBRID** event and we will be joined online by **Jason Romans**. You're welcome to come meet in-person at our meeting location, the offices of Improving at **[6000 Freedom Square Dr,](https://www.google.com/maps/place/Improving/@41.4004167,-81.6614462,17z/data=!3m2!4b1!5s0x8830e5b8255c5919:0xd8297060eb68fe04!4m6!3m5!1s0x8830dc7a0fe35dc9:0xbfc4710ecadfc5c!8m2!3d41.4004127!4d-81.6588713!16s%2Fg%2F1hm3hkqp3?entry=ttu&g_ep=EgoyMDI1MDQzMC4xIKXMDSoASAFQAw%3D%3D)** **[Unit 110,](https://www.google.com/maps/place/Improving/@41.4004167,-81.6614462,17z/data=!3m2!4b1!5s0x8830e5b8255c5919:0xd8297060eb68fe04!4m6!3m5!1s0x8830dc7a0fe35dc9:0xbfc4710ecadfc5c!8m2!3d41.4004127!4d-81.6588713!16s%2Fg%2F1hm3hkqp3?entry=ttu&g_ep=EgoyMDI1MDQzMC4xIKXMDSoASAFQAw%3D%3D)** **[Independence, OH 44131](https://www.google.com/maps/place/Improving/@41.4004167,-81.6614462,17z/data=!3m2!4b1!5s0x8830e5b8255c5919:0xd8297060eb68fe04!4m6!3m5!1s0x8830dc7a0fe35dc9:0xbfc4710ecadfc5c!8m2!3d41.4004127!4d-81.6588713!16s%2Fg%2F1hm3hkqp3?entry=ttu&g_ep=EgoyMDI1MDQzMC4xIKXMDSoASAFQAw%3D%3D)** [Teams Link ](https://teams.microsoft.com/l/meetup-join/19%3ameeting_N2Q3ODVjM2YtNDQ1NS00MDBjLWI5MzYtNDQ3YmFlZjkzMjAx%40thread.v2/0?context=%7b%22Tid%22%3a%22b966f302-6b93-4686-9041-c084635642c5%22%2c%22Oid%22%3a%2278c760cb-657f-46aa-bd2f-7066d9403bdb%22%7d)if anyone needs it after RSVP-ing for in person. If you would like to subscribe to our email list outside of Meetup, we have changed platforms recently and you will need to register [here in Kit ](https://ohio-north-data-training.kit.com/b8f036f615)instead to receive emails. Agenda: **5:00 PM EST**: Online and in-person meeting begins with a social hour. This is an unstructured hour where you can join us to catch up and meet other group members before the session starts. There will be food brought in for in-person attendees. **6:00 PM EST**: Updates and announcements, followed by our feature presentation. See below for presentation details. **7:30 PM EST**: Optionally after the main presentations, the in-person crowd may go out for snacks and drinks at a local establishment. We hope to see you there! Session Abstract **Data on Fire: A Hands-On Intro to Spark in Fabric** Curious about Apache Spark but not sure where to start? This hands-on session introduces you to Spark in Microsoft Fabric Notebooks—a powerful and accessible way to process and analyze big data using familiar tools in the Microsoft ecosystem. We’ll break down key Spark concepts like distributed computing, DataFrames, and lazy evaluation, then show how they come to life inside Fabric’s notebook experience. You’ll see practical demos that cover loading, transforming, and analyzing large datasets—while leveraging Fabric’s modern data stack, including OneLake, Dataflows, and Pipelines. You’ll also learn how to choose between Spark and pure Python notebooks in Fabric, based on execution needs, data integration, and use case fit. Whether you're a SQL pro, BI developer, or data engineer, this session will give you the tools and confidence to start using Spark in your own projects—no cluster management required. \*Please note, that we will be using Microsoft Teams for the online portion of this meeting. You may want to join a few minutes early to ensure you do not have any issues. If you are attending in person, there are large TVs at the office, and you do not need to bring a laptop or use Teams.

**New Dojo Location!** **Draft Day Columbus** 1130 Dublin Road Columbus, OH 43215 We're going to try a new dojo location for a few weeks and see how it works Dojos are informal Python group study sessions where everyone interested in Python gathers to learn about Python, help others with Python, or just hang out. Everyone is welcome from Python beginners to experts. Bringing a laptop is encouraged (we'll have extension cords and power strips). If there's something you want to learn leave a comment on this invite so we can plan ahead. We're looking for topic suggestions and people interested in presenting at our monthly meetings. To this end we've set up a survey form at [https://docs.google.com/forms/d/15eBKF1nQQ2XS5gzD4rvhVRHMBEj7lJtHuA9wXupS3Uc](https://docs.google.com/forms/d/15eBKF1nQQ2XS5gzD4rvhVRHMBEj7lJtHuA9wXupS3Uc)

SQL Server 2025 delivers a major round of improvements across performance, security, manageability, and hybrid connectivity, and this session gives you a practical, no‑nonsense tour of what matters most. We’ll cover enhancements to the core engine, query processing, storage, and availability that benefit DBAs and developers regardless of where SQL Server runs. You’ll see how SQL Server 2025 aligns with Azure SQL’s roadmap while still supporting strong on‑premises and VM‑based deployments. We’ll highlight new management, monitoring, and troubleshooting capabilities designed to simplify operations and reduce firefighting. AI‑powered features exist in this release, but the focus here is on the foundational improvements you can use immediately. Whether you’re modernizing, maintaining, or planning your next upgrade cycle, this session will help you understand what’s new and how to prepare your environment and your team.

**Doing KPIs Right: a KEY to Analytics (and AI!) Impact!** On the one hand, KPIs are such a Business 101 concept that it may seem a little silly to dedicate an entire session to the topic. On the other hand, KPIs get handled so poorly so often that a case could be made that this meetup could just be one of the most impactful sessions of the entire year! We’re starting off the year at a new location: [COhatch Upper Arlington](https://www.cohatch.com/locations/columbus/upper-arlington/) but with a familiar speaker, Tim Wilson! We’ll be back at Rev1 in February, when the speaker will presumably not be Tim. Tim will make the case that effectively measuring performance of projects, campaigns, and initiatives (and even meetups!) should be a foundation for any data analytics program. Topics covered will include: the “two magic questions” of performance measurement, how to help business partners distinguish between outcomes and outputs, and effective tactics for collaboratively establishing KPI targets. He will also stick his neck out by demonstrating some of these techniques in real-time by measuring whether his talk lives up to the promise of this description! All CBUSDAW events are free thanks to our 2026 Sponsors: Clarivoy, Conductrics, What Box Consulting Group, and Piwik PRO. Check out [cbusdaw.com](https://cbusdaw.com) for more information.