ClickHouse Release Notes v24.2
ChistaDATA

ClickHouse Winter 2024 Release – v24.2

Introduction Each new release includes new features, improvements, and numerous bug fixes, and the ChistaDATA team is always on top of the latest releases. On 29th February 2024, ClickHouse version 24.2 (February 2024) was released, […]

Avoid Linux OOM Killer ClickHouse
ChistaDATA

How to Avoid the Linux OOM Killer in ClickHouse

Introduction In numerous instances, this indicates an out-of-memory scenario. ClickHouse started utilizing excessive memory, prompting Linux to terminate it to avert system instability. The responsible Linux process for this action is the Out-of-Memory Killer, also […]

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ClickHouse

Implementing Online Schema Change in ClickHouse

Introduction In the dynamic world of data management, databases are constantly evolving to meet the changing needs of organisations. However, changing the structure of a database, also known as a schema change, has traditionally been […]

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ClickHouse internal_replication Parameter

Why we need to provide a shard section using the internal replication configuration parameter. Does it make sense if you only have instances in multiple data centres with high latency? In this situation, using ZooKeeper […]