ClickHouse Meetups at Bay Area. Recap
We would like to thank all attendees, our great partners, talented speakers, and generous hosts, who made these events possible and successful!Presentations from meetups are published here.
ClickHouse release 1.1.54380
ClickHouse team and community contributors actively develop ClickHouse adding many new features, improving performance and flexibility. Unfortunately, sometimes it affects stability of the product. We were very upset by some unexpected regressions in recent ClickHouse releases. After initial testing of…
ClickHouse Monitoring with Graphite
Monitoring is an important part of operating any software in production. The proper monitoring solution needs to store metrics somewhere as well as provide visualization capabilities. ClickHouse does not have such a tool packaged, but there are several 3rd-party monitoring…
Analyze MySQL Audit Logs with ClickHouse and ClickTail
In this blog post, I’ll look at how you can analyze MySQL audit logs (Percona Server for MySQL) with ClickHouse and ClickTail. Audit logs are available with a free plugin for Percona Server for MySQL. Besides providing insights about activity on…
Bay Area ClickHouse Week is Coming (Apr 23-27)
Great news for San Francisco Bay Area: ClickHouse is coming. The week of April 22nd is going to be entertaining for ClickHouse adopters and newcomers: Percona Live conference talks, two ClickHouse meetups, meetings with ClickHouse developers and Altinity team –…
ClickTail Introduction
Altinity is happy to introduce ClickTail — an easy to use tool for ingesting log file data into ClickHouse and making it available for exploration. Its favorite format is JSON, but it understands how to parse a range of other well-known log…
Archiving MySQL Tables in ClickHouse
Why Archive? Hard drives are cheap nowadays, but storing lots of data in MySQL is not practical and can cause all sorts of performance bottlenecks. In this article Percona’s blogger Alexander Rubin is talking about archiving MySQL tables in ClickHouse for storage and…
Aggregate MySQL data at high speed with ClickHouse
Feb 12, 2018There are multiple ways how ClickHouse and MySQL can work together. External Dictionaries, ProxySQL support or [realtime streaming] of MySQL binary logs into ClickHouse. A few weeks ago ClickHouse team has released mysql() table function that allows to…
Updating/Deleting Rows From Clickhouse (Part 2)
Jervin Real is a Senior Consultant and blogger working for Percona. In this post, Jervin looks at updating and deleting rows with ClickHouse. It’s the second of two parts.
Updating/Deleting Rows with ClickHouse (Part 1)
Jan 23, 2018Jervin Real is a Senior Consultant and blogger working for Percona.In this post, Jervin looks at updating and deleting rows with ClickHouse. It’s the first of two parts.
ClickHouse for Machine Learning
Jan 18, 2018ClickHouse is very flexible and can be used for various use cases. One of the most interesting technology areas now is machine learning, and ClickHouse fits nicely there as very fast datasource. A few months ago ClickHouse team…
ClickHouse Roadmap 2018
ClickHouse development team is known for lack of published development plans. Sometimes they disclose plans responding to questions and bug reports, but more often discuss the roadmap at meetups. In this article we describe ‘secret’ 2018 roadmap that has been…