MapReduce
Meet other local people interested in MapReduce: share experiences, inspire and encourage each other! Join a MapReduce group.
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Frequently Asked Questions
Yes! Check out mapreduce events happening today here. These are in-person gatherings where you can meet fellow enthusiasts and participate in activities right now.
Discover all the mapreduce events taking place this week here. Plan ahead and join exciting meetups throughout the week.
Absolutely! Find mapreduce events near your location here. Connect with your local community and discover events within your area.
MapReduce Events Today
Join in-person MapReduce events happening right now
Meet and Greet at Yummy Bowl
Yummy Bowl serves Mongolian BBQ, sushi, and ramen. Mongolian BBQ is a stir-fry style of cuisine where you place a selection of raw noodles/rice, vegetables, fruit, and protein in to a bowl along with your choice of sauces and the dish is cooked for you on a large, round grill while you wait. Every bowl is delicious and you are the chef so the selection gets better every time!
Expect entrees in the range of $17 plus tax and beverage. This is a great opportunity to meet others who are new as well as those who have been around a while! Look for GRASP table flyers and Eli's GRASP shirt to easily find the group. We can't wait to see you there!
ProductTank DC Happy Hour 3/31
🍻 What: ProductTank Happy Hour -- Join your fellow DC product people for a casual opportunity to connect and learn more about all things product from our ProductTank members. Whether you are a seasoned veteran or interested in diving into product management, all are welcome!
🏢 Where: The Admiral in Dupont (1 block from Dupont Metro) -- Guests will be asked to open their own tab. There is no minimum required.
🕒 When: 3/31/26 6:00-8:00 PM
👋We hope to see you there!
Trivia at Lost Dog Cafe
Join us for trivia at Lost Dog Cafe in McLean, Virginia located at 1690 Anderson Rd every Tuesday evening. Trivia begins at 7pm, but please consider joining earlier, around 6:45pm, since seating’s first-come-first-served. The nearest metro is McLean.
Questions? Text 202-925-0001.
Doubles Volleyball - Competitive BB/A
Let's get together to play some competitive coed doubles volleyball.
**COST**: FREE
**Court Type**: Outdoor grass
**Minimum Skill Requirements**: Solid BB (click [here](https://docs.google.com/document/d/1PojSi4qdlRsv1msCHhvpQ43iDc4FfzQwpWCc3kafVMY/mobilebasic) for details)
Attention:
1. This event is **not always on a first come, first served basis**. [Good doubles partner](https://docs.google.com/document/d/14weEw-P52XKx0P8K2l-ZOFtYU61wmfdkSkopbG5avro/) and those who can bring a net and ball, may get priority over others on the waitlist.
2. Since skill levels are **self-reported**, some attendees may not meet the expected level in reality, so we encourage you to choose a partner you can enjoy the game with, and since this is a competitive event, it is okay if you make a strong team and win all the games.
3. Each person must help set up and take down one net, leaving some nets unset for latecomers.
**Smiley Social documents:**
1. [Group Rules](https://docs.google.com/document/d/1HrG35p_0M08leRvCp8XWG3CMkr_GL928XFabl5T6Dvg)
2. [Smiley Social Volleyball Levels](https://docs.google.com/document/d/1PojSi4qdlRsv1msCHhvpQ43iDc4FfzQwpWCc3kafVMY/edit)
3. [Good doubles partner](https://docs.google.com/document/d/14weEw-P52XKx0P8K2l-ZOFtYU61wmfdkSkopbG5avro/)
4. [Liability Waiver](https://docs.google.com/document/d/1W2mq-7m99lmvd7gdWYaSUFtvVg4UGnzV6koafAbHmco)⁷
Reboot Hour DMV: Spring Cleaning Edition 🌸⚾
Spring is almost here and we're getting ready. The blossoms might be out, the Nats Home Opener is Friday (4/3), and your tech drawer still looks like 2019 😕
Reboot Hour is your monthly Tuesday reset — a casual hangout at Carpool in Ballston where you can play pool, pinball, shuffleboard, or darts, grab a drink, and meet other tech, startup, and climate folks in the DMV. No agenda, no presentations, no speeches. Just a good excuse to get out on a Tuesday and kick off the week before Opening Day.
Got old phones, tablets, or laptops collecting dust? Spring cleaning season is the perfect time to bring them in. We professionally wipe all data and get devices to people who actually need them. But bringing a device is totally optional — showing up is the whole point.
Think of it as your warmup for the Nats Home Opener. Shake off winter, clear some space, and start the season right.
**Details:** Tuesday, March 31st 6:00 – 8:00 PM (drop in anytime) Carpool — 900 N Glebe Rd, Arlington, VA Right off the Ballston Metro
**What to bring:** Just yourself. Old devices welcome but not required. A friend, or meet a new one!
**What to expect:** Pool, pinball, shuffleboard, darts, drinks, zero pressure — and a baseball game at the end of the week.
MapReduce Events This Week
Discover what is happening in the next few days
ONLINE LIVE- Word Game Party (Word Twist, Categories, Rebus and more)
**\*GET TICKETS AT - [https://www.socialevents123.com/event-details.aspx?id=13304#tix](https://www.socialevents123.com/event-details.aspx?id=13304#tix)**
(Multiple Meetup groups are co-organizing so the RSVP's shown are just a very small portion attending. .)
Do you like word games and enjoy playing with others?
Then this is your opportunity to have some fun online playing word games our Live Word Game Night Party.
These will include Word Twist, Categories, Rebus and more.
We will email you everything you need to play! You will also get to socialize and make other friends all from the safety and comfort of your home! Plus, winners receive Amazon Gift Cards, free events, and more!
**\*GET TICKETS AT - [https://www.socialevents123.com/event-details.aspx?id=13304#tix](https://www.socialevents123.com/event-details.aspx?id=13304#tix)**
\*After you purchase ticket, you will get the zoom link ON DAY OF THE EVENT. $15- $20 depending on how early you register for ticket.
HOW IT WORKS:
This completely online event will be LIVE and you will be able to see and hear the other participants while playing. In addition you get to meet and interact with other participants. You can attend via a computer/ webcam or smartphone/iPad/tablet.
At game time, your host will show you a word search board. Your goal is to come up with as many words as you can within the specified time frame. We will have multiple rounds of play and have a system to also virtually introduce you to other participants.
The people who made the most words, will get a raffle ticket for a chance to win a prize at the end of the event. You also can earn raffle tickets for audience participation and finding certain bonus words. Winners receive Amazon Gift Cards, free events, and more! We will also play several other games including Word Twist, Categories, Rebus and more.
**RSVPS on here are NOT reflective of actual attendance as this is a mlulti group event. \*GET TICKETS AT - [https://www.socialevents123.com/event-details.aspx?id=13304#tix](https://www.socialevents123.com/event-details.aspx?id=13304#tix)**
**For more fun events:**
**Follow: [https://www.eventbrite.com/o/new-york-city-social-events-10797526283](https://www.eventbrite.com/o/new-york-city-social-events-10797526283)**
**Click: [https://dljparty.ticketleap.com/](https://dljparty.ticketleap.com/)**
Biking Washington
Welcome to Pickup Sports (Adult League)! Join our community! To register for this game, download our app on the App Store or Play Store and sign up. More players signed up on the app.
App Store: https://apps.apple.com/us/app/pickup-sports-adult-league/id6739766176
Play Store: https://play.google.com/store/apps/details?id=com.pickup.sports
We host games for all sports in every city. Please check our app for complete game details and availability. Keywords: Soccer Basketball Tennis Volleyball Baseball Softball Football Rugby Hockey Golf Swimming Track and Field Cycling Wrestling Boxing Karate Judo Table Tennis Badminton Cricket Lacrosse Pickleball Rowing Sailing Skateboarding Surfing Snowboarding Skiing Spikeball Rock Climbing Martial Arts Dance
\*\*\*Important: Do not rely on this Meetup event for final game details. All game information, including exact locations, start times, player counts, live status updates, etc. are available exclusively in the Pickup Sports App.\*\*\*\*
Hiking Washington
Welcome to Pickup Sports (Adult League)! Join our community! To register for this game, download our app on the App Store or Play Store and sign up. More players signed up on the app.
App Store: https://apps.apple.com/us/app/pickup-sports-adult-league/id6739766176
Play Store: https://play.google.com/store/apps/details?id=com.pickup.sports
We host games for all sports in every city. Please check our app for complete game details and availability. Keywords: Soccer Basketball Tennis Volleyball Baseball Softball Football Rugby Hockey Golf Swimming Track and Field Cycling Wrestling Boxing Karate Judo Table Tennis Badminton Cricket Lacrosse Pickleball Rowing Sailing Skateboarding Surfing Snowboarding Skiing Spikeball Rock Climbing Martial Arts Dance
\*\*\*Important: Do not rely on this Meetup event for final game details. All game information, including exact locations, start times, player counts, live status updates, etc. are available exclusively in the Pickup Sports App.\*\*\*\*
Cuban Salsa/Rueda de Casino Class & Social Dancing
Danceintime runs Cuban Salsa Classes & Social Dancing Every Saturday, all year-long. Come at 1:15 pm to sign in. Stay till 4 pm.
Some of us go out for coffee or a bite to eat afterwards and everyone is welcome!
$15/person. Cash, PayPal, Venmo, Apple Pay, or Card accepted.
Chevy Chase Baptist Church; 5671 Western Ave. NW; Washington DC 20015. NOTE: Enter through back corner door of the church.
Danceintime classes are great fun. The dance moves are beautiful, fun, and our class creates a bonded community... Check it out! Class will be held every Saturday in December....celebrate the holidays with dance!
For more info: danceintime.com/classes
Questions? Contact Barbbernsteintalks@gmail.com
Badminton Washington
Welcome to Pickup Sports (Adult League)! Join our community! To register for this game, download our app on the App Store or Play Store and sign up. More players signed up on the app.
App Store: https://apps.apple.com/us/app/pickup-sports-adult-league/id6739766176
Play Store: https://play.google.com/store/apps/details?id=com.pickup.sports
We host games for all sports in every city. Please check our app for complete game details and availability. Keywords: Soccer Basketball Tennis Volleyball Baseball Softball Football Rugby Hockey Golf Swimming Track and Field Cycling Wrestling Boxing Karate Judo Table Tennis Badminton Cricket Lacrosse Pickleball Rowing Sailing Skateboarding Surfing Snowboarding Skiing Spikeball Rock Climbing Martial Arts Dance
\*\*\*Important: Do not rely on this Meetup event for final game details. All game information, including exact locations, start times, player counts, live status updates, etc. are available exclusively in the Pickup Sports App.\*\*\*\*
Biannual Potluck - Simplicity Living Circle of Northern VA
**Every six months, to honor the passing of the Vernal and Autumnal Equinox, the circle hosts a potluck at the pavilion in front of the fire pit. We don't keep track of who will bring what behind-the-scenes, so feel free to bring whatever you'd like!**
**If you have any dietary restrictions and would like to attend, but worry there won't be anything you can eat, please reach out to Ethan or Ben and we'll make sure there's something available for you!**
--
The[ Simplicity Living Study Circle of Northern VA](https://www.coachingwithdanijk.com/blog/important-community-update-join-our-new-meetup-group-simplicity-living-circle-of-northern-va) meets on the first Saturday of each month from 4:00 to 5:30 PM at Lacey Woods Park in Arlington, Virginia. **\*This is a rain or shine outdoor event.**
This free community group offers a unique and empowering space for individuals seeking to live a simpler, more intentional life. Through participant-driven discussions and facilitated activities, our circle fosters connection, reflection, and mutual support.
Hosted by members of the Simplicity Living Circle of Northern VA, we welcome those who are curious about simplicity, mindful living, and environmental care. Whether you are just beginning or deepening your journey, you are warmly invited into this inclusive and supportive space.
*Note: Our official Meetup group changed due to administrative complications. This new group is now our verified and active community hub, which you can confirm at our in-person events.*
MapReduce Events Near You
Connect with your local MapReduce community
CBusData: The Fellowship of the Star Schema: Transforming OLTP Data for Power BI
The Fellowship of the Star Schema: Transforming OLTP Data for Power BI
One does not simply build reports on OLTP data. Join us on an epic journey from the depths of raw, normalized tables to the shining halls of a well-modeled star schema fit for Power BI greatness. We will demystify the differences between OLTP and OLAP, walk through star schema vs snowflake (and why Power BI has a clear favorite), and show you the compression differences between normalized and columnar storage that will make you never look at an OLTP model the same way again.
We will cover the different types of dimensions, when to use them, and how to handle Slowly Changing Dimensions without losing your mind. You will leave knowing exactly how to identify a bad model, how to convert OLTP data into a clean star schema, and how to forge relationships that rule them all.
Whether you are a data wizard, a curious hobbit, or somewhere in between, your models will never be the same.
Omnipresent Atheists Weekly Meetup (2nd Tues)
Jimmy V's Grill & Pub in Grandview Heights. You are responsible for your own meal/drinks. We usually don't have any agenda other than eat, drink and talk. :) If the weather is nice we will be on the back patio, otherwise we are in the cigar room.
This group has been meeting every Tuesday evening for over a decade. Many attendees do not RSVP on meetup. Please don't let the small number here discourage you. Anyone/everyone is welcome to come. We'd love to have you join us.
COTA bus #5 comes to W. 5th and Wyandotte Rd. And it's a minute walk to the restaurant.
***
Did you know that there are atheists everywhere?!?! You may not know it, but we are! We're in your schools, diners, police force, military, government, and some are even still in your churches! So come and join us and meet other local atheists, along with agnostics, heathens, humanists, skeptics, and anyone else who's 'hell bound'!
Vision: a Central Ohio that accepts atheism as a viable alternative in all areas of public and private life.
Mission: grow, support, and provide community for atheists in Central Ohio.
Social meetings held most Tuesdays at a local pub/restaurant at 7:00 PM (and often into the wee hours). Attendees call themselves agnostics, skeptics, humanists, non-theists, deists or even theists. All attendees are welcome but should support our vision.
Atheists of Columbus (AoC) is part of Omnipresent Atheists (OA). AoC members are invited to join this OA meetup and/or OA Facebook group ( https://www.facebook.com/groups/omnipresentatheists/ ) but are free to continue conversations on the AoC Facebook group ( https://www.facebook.com/groups/columbusatheists/ ). AoC was founded in 2012 as a networking, social group for Central Ohio area humanists, skeptics, atheists, agnostics, nonbelievers, freethinkers, and the curious. It was a member of Columbus CoR and held weekly meetings, mostly on Fridays, for several years but then operated as an online only group for some time. In November 2018, Omnipresent Atheists (OA), a group that routinely meets on Tuesdays, invited AoC to merge.
Omnipresent Atheists is a member of the Columbus Coalition of Reason (ColumbusCoR.org). Omnipresent Atheists is a member of the Columbus Coalition of Reason ( http://www.ColumbusCoR.org ). Omnipresent Atheists endorses the mission of the Secular Coalition for America ( http://secular.org ).
IxDA Chat ‘n Pancakes
Pay attention! We’re delaying a week for those of you who may be on Spring break and/or celebrating the holiday. Ok, no pancakes, but waffles-a-plenty.
Join the local UX and Digital Design community for a casual monthly breakfast.
Look for us upstairs!
Omnipresent Atheists Weekly Meetup (1st Tues)
Jimmy V's Grill & Pub in Grandview Heights. You are responsible for your own meal/drinks. We usually don't have any agenda other than eat, drink and talk. :) If the weather is nice we will be on the back patio, otherwise we are in the cigar room.
This group has been meeting every Tuesday evening for over a decade. Many attendees do not RSVP on meetup. Please don't let the small number here discourage you. Anyone/everyone is welcome to come. We'd love to have you join us.
COTA bus #5 comes to W. 5th and Wyandotte Rd. And it's a minute walk to the restaurant.
Did you know that there are atheists everywhere?!?! You may not know it, but we are! We're in your schools, diners, police force, military, government, and some are even still in your churches! So come and join us and meet other local atheists, along with agnostics, heathens, humanists, skeptics, and anyone else who's 'hell bound'!
Vision: a Central Ohio that accepts atheism as a viable alternative in all areas of public and private life.
Mission: grow, support, and provide community for atheists in Central Ohio.
Social meetings held most Tuesdays at a local pub/restaurant at 7:00 PM (and often into the wee hours). Attendees call themselves agnostics, skeptics, humanists, non-theists, deists or even theists. All attendees are welcome but should support our vision.
Atheists of Columbus (AoC) is part of Omnipresent Atheists (OA). AoC members are invited to join this OA meetup and/or OA Facebook group ( https://www.facebook.com/groups/omnipresentatheists/ ) but are free to continue conversations on the AoC Facebook group ( https://www.facebook.com/groups/columbusatheists/ ). AoC was founded in 2012 as a networking, social group for Central Ohio area humanists, skeptics, atheists, agnostics, nonbelievers, freethinkers, and the curious. It was a member of Columbus CoR and held weekly meetings, mostly on Fridays, for several years but then operated as an online only group for some time. In November 2018, Omnipresent Atheists (OA), a group that routinely meets on Tuesdays, invited AoC to merge.
Omnipresent Atheists is a member of the Columbus Coalition of Reason (ColumbusCoR.org). Omnipresent Atheists is a member of the Columbus Coalition of Reason ( http://www.ColumbusCoR.org ). Omnipresent Atheists endorses the mission of the Secular Coalition for America ( http://secular.org ).
This group has been meeting every Tuesday evening for over a decade. Many attendees do not RSVP on meetup. Please don't let the small number here discourage you. Anyone/everyone is welcome to come. We'd love to have you join us.
Data & Analytics Wednesday - The Data-Driven Brand
**The Data-Driven Brand: Using Analytics to Shape Perception**
Can you use analytics to improve tacos? This being CBUSDAW, we think the answer is probably “yes”, but we’re not sure how to implement or test this theory.
For our April meetup we’ve got Sara Kear, CMO of Condado Tacos, to investigate this delicious question. Sara will explore how she blends quantitative data and qualitative customer feedback to shape brand positioning and drive business decisions. We all know that marketing and analytics go way beyond attribution. Sara will show how Condado uses customer insights to inform product and pricing strategy.
She’ll also highlight how Condado leverages customer feedback at scale to influence operational priorities, positioning marketing as the voice of the customer across the organization. In the last 12 years Condado has gone from one location in Columbus to 52 locations across 10 states, so we’re guessing there’s more to that growth than really good guac (though the guac probably helps).
Ultimately, this talk focuses on the intersection of art and science—using data to inform creativity and build a brand that resonates with customers in a measurable way.
**About Our Speaker**
Sara Kear is Chief Marketing Officer at Condado Tacos, where she oversees brand, restaurant design, menu and pricing strategy, off-premise including catering, and customer data strategy. Since joining in 2021, she has helped grow the brand from 19 to 52 locations while building a data-driven marketing organization focused on loyalty and customer insights. Condado has since been named to the Inc. 5000, recognized as Breakout Retailer by Chain Store Age, and consistently ranked among FastCasual’s Top 100 Movers & Shakers.
Thanks to our 2026 sponsors:
[Clarivoy](https://www.clarivoy.com), [What Box Consulting Group](https://www.whatboxconsultinggroup.com), [Conductrics](https://www.conductrics.com), and [Piwik PRO](https://piwik.pro)
More info at [cbusdaw.com](https://cbusdaw.com)
In-Person Event: The Answers to Depression & Anxiety
This is an in-person meeting. At this meeting you will get answers to depression and anxiety. Find out the source of them and how to get rid of them.
Did you know that unwanted emotions like anxiety, depression, unhappiness, loneliness, hopelessness, anger, fear, or feelings of irritation don’t just fall on you for no reason. They are not random occurrences that simply happen to people's minds. They are definitely not due to a chemical imbalance in your brain from some nebulous chemical reaction "by chance".
Your negative emotions are the symptoms of the painful experiences that you have which are not healed, and which are still affecting you.
The effects of these painful experiences are exacerbated by the pressures or difficulties of the other problems in your life.
Come to our Meetup, where we can introduce you to some of the knowledge, tools and techniques of the breakthroughs in the field of the mind that we can apply to this ever important area of life.
Be sure to click on the red "Attend" button below to come to this local event. We look forward to seeing you there.
This group is created by the Hubbard Dianetics Foundation of Central Ohio and Church of Scientology of Central Ohio.
DoJo (Informal Python Meeting)
**Latest Dojo Location!**
**Knotty Pine Brewing**
1765 W 3rd Ave,
Columbus, OH 43212
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 speakers for our Monthly Meetups! Fill out the form if you are interested in presenting to the Python Community.
https://forms.gle/ehSfUAC2WgR34Crq9






























