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Kubernetes Cluster Logging
Blog

Kubernetes Cluster Logging with ClickHouse® and OpenTelemetry

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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...
Logs, traces, and Metrics - OpenTelemetry Collector
Blog

An Introduction to the OpenTelemetry Collector

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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

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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

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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

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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

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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. ...
Squeezing JuiceFS with ClickHouse (Part 2)
Blog

Squeezing JuiceFS with ClickHouse (Part 2): Bringing The Two Together

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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.
Squeezing JuiceFS with ClickHouse (Part 1):
Blog

Squeezing JuiceFS with ClickHouse (Part 1): Setting Things Up in Kubernetes

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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.
Into the Deep End: Learning SQL by Taking On Project Euler Puzzles (Part 2)
Blog

Into the Deep End: Learning SQL by Taking On Project Euler Puzzles (Part 2)

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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++.
Into the Deep End: Learning SQL by Taking On Project Euler Puzzles (Part 1)
Blog

Into the Deep End: Learning SQL by Taking On Project Euler Puzzles (Part 1)

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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.
Open Source Analytics Conference 2024
Blog

OSA Con 2024: Submit Your Proposals on Open Source Analytics Today!

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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

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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...