We launched Altinity.Cloud a year ago, providing the first-ever fully managed ClickHouse service in AWS. Since then we have continued to improve the product. Today, we are happy to announce Altinity.Cloud at Google Compute Platform, the first-ever multi-cloud managed ClickHouse offering!
Today we annouce ClickHouse Altinity Stable release 21.8. This release is a significant upgrade since the previous Altinity Stable release. It includes 1472 pull requests from 224 contributors. Continue reading for full release notes.
ClickHouse often runs in a cluster, and cluster operation poses some interesting questions regarding S3 usage. They include parallelizing data load across nodes, benefits of horizontal vs. vertical scaling, and avoiding unnecessary replication. In this article, we will discuss how ClickHouse clusters can be used with S3 efficiently thanks to two important new features: the ‘s3Cluster‘ table function and zero-copy replication.
We live in a rapidly changing world. The ability to discover and apply business-critical insights from petabyte datasets in real-time is now a key factor in many businesses. Digital marketing is no exception. In fact, digital marketing is now one of the major sources of Big Data. In this article, we will explain how ClickHouse is used by the digital marketing company LifeStreet.
A few months ago we certified ClickHouse 21.1 as an Altinity Stable release. Since then, we have worked on newer releases and run them in-house. We completed several new features, and even more have been added by community contributors.
Word is getting around that ClickHouse is the fastest data warehouse on the block. So how do you get this goodness working in Amazon? Watch this introduction to Altinity.Cloud today.
The latest ClickHouse Altinity Stable Release 21.1 introduces significant new security features like LDAP external users directory, AES encryption functions along with MergeTree features, SQL compatibility, backward incompatible changes, and more.
Rick Bilodeau from Imply published an excellent article in June 2020 comparing Druid cost-efficiency to Google Big Query for what they called ‘hot analytics’ — sub-second response time with high query concurrency. We appreciate this effort and great results of an open source technology. In that article Rick used the popular Star Schema Benchmark (SSB). […]
ClickHouse is a very powerful database for analytics. Microsoft Excel is one of the world’s most popular business applications. There are several ways to bring ClickHouse data to Excel spreadsheets. In this article we will explain how to connect Excel to ClickHouse using the Mondrian OLAP server. This approach has been pioneered in Sergei Semenkov’s[…]
The year 2020 has been a tough one for the world. It changed the way people work, communicate and travel. It taught us to care more about family, friends, and colleagues. It highlighted the fragility of our world. Altinity and ClickHouse changed as well, but fortunately most changes were good.
Arrays are a prominent ClickHouse SQL extension that can accelerate query speed up to 100x in well-chosen use cases. This webinar introduces ClickHouse arrays and shows how to use them effectively. We provide examples of idiomatic usage and guides you on use cases where you should immediately reach for arrays. Please join us to become a power user of this popular ClickHouse feature.
ClickHouse is a polyglot database that can talk to many external systems using dedicated engines or table functions. In modern cloud systems, the most important external system is object storage. It can hold raw data to import from or export to other systems (aka a data lake) and offer cheap and highly durable storage for table data. ClickHouse now supports both of these uses for S3 compatible object storage.