About us
We’re delighted to have you join the ClickHouse and friends global community!
This is a meetup for everybody who is interested in ClickHouse, from a technology and use case perspective. ClickHouse® is an open-source, high performance columnar OLAP database management system for real-time analytics using SQL. The sessions and discussions in this group will relate to architecture considerations, software design, coding and much more.
Our user group is free and open so we welcome you all to learn, collaborate, and share experiences!
Upcoming events
2
- Network event
Click-a-thon 2026
Location not specified yet4 attendees from 4 groupsClick-a-thon 2026: Build with the fastest database on the planet
🚀 ClickHouse's first in-person developer hackathon in India is here.
Join ~120 professional developers across ~30 teams for 24 hours of focused, high-intensity engineering — building real-world solutions on ClickHouse and the open-source analytics stack.
If you've ever wanted to push the limits of real-time analytics, ship something ambitious with a small team, and get your work in front of the wider data community, this is the room to be in.Event Details
- Date: 1–2 August 2026 (24-hour hackathon)
- Location: Bengaluru (venue details shared with confirmed registrants)
- Format: In-person, team-based (teams of up to 4)
- Cost: Free to participate
Pick your track
Teams will build toward one of four tracks, each grounded in real engineering problems:- Real-Time Analytics — Sub-second queries on streaming data at scale
- Observability — Logs, metrics, and traces on ClickHouse
- Data Warehousing — Modern OLAP workloads and analytical pipelines
- Agentic AI & Analytics — LLM-powered agents working over analytical data
Problem statements within each track come from our partner companies — real challenges from real engineering teams.
What's at stake
Prize pool of INR 10L and a chance for the top 3 teams earn a main stage slot at ClickHouse Open House Bengaluru on 22 September 2026 — presenting their solutions to a room full of practitioners, engineers, and the wider community.Who should attend
- Backend, data, and platform engineers
- Anyone working on real-time analytics, observability, or data infrastructure
- Developers exploring agentic AI on top of analytical data
- Folks who like shipping ambitious things in short timeframes
What to bring
- Your laptop and dev setup
- A team of up to 4
- Energy, and a willingness to build through the night
Food, drinks, snacks and workspace will be provided throughout the 24 hours.
Register
Spots are limited and registration closes once we hit team capacity. Secure your spot 👇
https://clickhouse.com/clickathon/india2026Questions?
Send them to clickathon-support@clickhouse.comSee you in Bengaluru. Let's build something real. 🚀
1 attendee from this group 
Lakes to Queries: Building High-Performance Data Platforms
IDfy Mumbai, Unit no. 801, Skyline Icon, 804, Andheri - Kurla Rd, Chimatpada, Marol, Andheri East, Mumbai, Maharashtra 400059, Mumbai, INJoin us for a community meetup exploring how modern teams are rethinking data architecture from the ground up. Join us for a community meetup exploring how modern teams are rethinking data architecture from the ground up. From designing scalable data lakes to building fast, reliable query layers on top of them, speakers will share real production experiences and practical lessons learned along the way. Whether you are architecting a new data platform or evolving an existing one, this is your chance to learn from engineers who have done it, connect with the local data community, and walk away with ideas you can put to work immediately.
Don't miss out! RSVP and secure your spot!
🗓️ Agenda:
- 10:00 AM: Registration & networking
- 11:00 AM: Welcome & opening
- 11:10 AM: Talk 1 - Scaling to a Billion: Building a Maritime Data Lake with ClickHouse Cloud by Vishal Dubey, CTO, RUDRA Cybersecurity Pvt. Ltd.
- 11:40 PM: Talk 2 - Trillions of Rows, Flat Bill: How IDfy Runs Multi-Tenant Insights-as-a-Service on a 2-Node ClickHouse Cluster by Hrishikesh Bihani, Sr. Technical Architect @ IDfy
- 12:10 PM: Closing Remarks
- 12:20 PM: Lunch & networking
If anyone from the community is interested in sharing a talk at future events, complete this CFP form and we’ll be in touch.
🎤 Session Details: Scaling to a Billion: Building a Maritime Data Lake with ClickHouse Cloud
Description: In the maritime industry, connectivity is a lifeline, powered by a complex web of satellite providers like Starlink, KVH, and OneWeb. For RUDRA, managing the massive influx of telemetry and usage data from these high-seas networks required a solution that could scale as fast as the data arrived.
This session dives into the architecture and evolution of SLASH, our specialized maritime datalake. We will share the "boots-on-the-ground" journey of adopting ClickHouse Cloud to ingest and manage over 1 billion records daily.
Speaker: Vishal Dubey, CTO, RUDRA Cybersecurity Pvt. Ltd.🎤 Session Details: Trillions of Rows, Flat Bill: How IDfy Runs Multi-Tenant Insights-as-a-Service on a 2-Node ClickHouse Cluster
Description: In 2023 we picked ClickHouse over BigQuery and Redshift for one reason — real-time analytics at a cost that doesn't scale with usage. This is the story of serving 16T+ rows a year of product, business, and billing analytics off two VMs, the war wounds of self-hosting, and why fixed cost beat the warehouse.
Speaker: Hrishikesh Bihani, Sr. Technical Architect @ IDfy168 attendees
Past events
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