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Blog
Kubernetes Cluster Logging with ClickHouse® and OpenTelemetry
We’ll be hosting a live webinar of Kubernetes Cluster Logging with OpenTelemetry Thursday September 26th — reserve your spot now In this post, we will put together a working demo with the OpenTelemetry Collector gathering all logs from a Kubernetes...
Blog
An Introduction to the OpenTelemetry Collector
By now you’re probably hearing about OpenTelemetry quite often. Maybe you’ve already read the description at https://opentelemetry.io/docs/what-is-opentelemetry/. Maybe you’re asking yourself, “that’s a lot of words about metrics, traces, logs, and such — but how do I actually start using...
Webinars
User Management in ClickHouse® Databases: The Unabridged Edition
User management is a key problem in any analytic application. Fortunately, ClickHouse has a rich set of features for authentication and authorization. We’re going to tell you about all of them. We’ll start with the model: users, profiles, roles, quotas,...
Blog
Kafka Engine: the Story Continues
In this article, we give an overview of the Kafka engine in ClickHouse and propose a list of improvements that should make it even better.
Blog | News
Altinity Stable® Build for ClickHouse® 24.3
Altinity Stable® Build for ClickHouse® 24.3 is now available!
Webinars
The Analytics Easy Button, or: How to Deploy ClickHouse® Services with Terraform, Helm, or Argo CD
Push-button deployment is the holy grail of analytic platforms, but what’s the right path to fulfill your quest? In this webinar, we’ll show the standard ways to deploy scalable, open-source ClickHouse services on Kubernetes using Terraform, Helm, or Argo CD. ...
Blog
Squeezing JuiceFS with ClickHouse (Part 2): Bringing The Two Together
After installing JuiceFS, let's create a ClickHouse cluster and examine simple write and read performance to non-cached and cached ClickHouse standard S3 disks, as well as potential problems.
Blog
Squeezing JuiceFS with ClickHouse (Part 1): Setting Things Up in Kubernetes
See how to configure JuiceFS (a POSIX-compatible filesystem) as a disk to store data for ClickHouse MergeTree tables using clickhouse-operator and JuiceFS CSI Driver.
Blog
Into the Deep End: Learning SQL by Taking On Project Euler Puzzles (Part 2)
We continue learning SQL by solving math puzzles from Project Euler. This article shows how to extend ClickHouse capabilities with a user defined function (UDF) written in C++.
Blog
Into the Deep End: Learning SQL by Taking On Project Euler Puzzles (Part 1)
Solving math puzzles from Project Euler is a great way to learn about ClickHouse SQL, especially array functions. Math can also help you speed up queries by orders of magnitude.
Blog
OSA Con 2024: Submit Your Proposals on Open Source Analytics Today!
Get ready! The Open Source Analytics Conference is making a triumphant return from November 19th to 21st, 2024! We're on the lookout for exciting proposals. Submit a talk and join the list of world-class speakers.
Blog
Learning from Rockset: Avoiding the Dangers of Lock-in to Cloud Database-as-a-Services
The news that the popular Rockset cloud service is going to be terminated is shocking. So the question arises – is there a way to keep benefits of DBaaS service providers but remove the downside of vendor lock-in, including risks...