User Notice: ClickHouse Data Corruption Bug in String Aggregates Is Fixed
Some ClickHouse versions contain a bug that adds a trailing null to aggregates on string values. The bug is now fixed and upgrades are available.
ReplacingMergeTree and Crazy ClickHouse Stuff: The December SF Bay Area ClickHouse Meetup
The SF Bay Area ClickHouse Meetup is the oldest US ClickHouse meetup. 202 2 was a busy year with 5 virtual meetups. Here is a quick summary of our latest meetup on December 14th.
How much does Altinity.Cloud cost?
Altinity.Cloud has a simple, flexible billing model. Learn how billing works and how to tune resources for cost-efficient analytics.
Using ClickHouse as an Analytic Extension for MySQL
With Altinity and Percona’s partnership, building more powerful, cost-efficient applications using ClickHouse as an analytic extension for MySQL is now a reality.
The Open Source Analytics Conference 2022 is on 15 November
Interested in open source software? Working on analytic applications? There is a virtual conference where you can learn about both. Altinity is delighted to announce Open Source Analytics Conference 2022!
Momentum Dash is Building a More Centered Work Environment with PostHog and Altinity
Momentum Dash uses PostHog and Altinity to understand the needs of their two million users. Read how ClickHouse analytics drive product development.
1 Trillion Rows in ClickHouse, Part 1: Altinity.Cloud Setup
1 Trillion rows is a lot but ClickHouse can handle it and so can you. Our first article in a blog series shows how to set up a large dataset in Altinity.Cloud — using features like multi-volume storage, fast server rescaling, and scheduled operation — at a minimal cost.
Trip Report: Amsterdam ClickHouse Meetup on 8 June
The June 8 meetup in Amsterdam was the first in-person ClickHouse community meetup in over 2 years. We bring you the first-hand report of ClickHouse talks, news, and updates.
Migrating Data from Snowflake to ClickHouse using S3 and Parquet
Can your Snowflake application run on ClickHouse? Learn how to migrate data from Snowflake to ClickHouse via S3 object storage and Parquet. Low latency response, freedom to run anywhere, and outstanding cost efficiency await.
SF Bay Area ClickHouse Meetup News
Get a quick low-down of recent ClickHouse meetups and upcoming community events. Videos and slide decks are included!
All About Zookeeper (And ClickHouse Keeper, too!)
Presentation slides from webinar hosted on March 30, 2022.
ClickHouse Aggregation Fun, Part 2: Exploring and Fixing Performance
In Part 1 we showed how ClickHouse uses parallel processing power to collect aggregates. In Part 2, we’re showing how to make aggregations faster and more efficient.