MariaDB ColumnStore 6.4.1 Release Notes

Overview

MariaDB Enterprise ColumnStore 6.4.1 is a maintenance release of MariaDB Enterprise ColumnStore . MariaDB Enterprise ColumnStore is a columnar storage engine included with MariaDB Enterprise Server. This is the fifth release in the Enterprise ColumnStore 6 series.

MariaDB Enterprise ColumnStore 6.4.1 was released on 2022-07-12. This release is of General Availability (GA) maturity.

This release of MariaDB Enterprise ColumnStore is included with MariaDB Enterprise Server 10.6.8-4.

Notable Changes

• ColumnStore now includes Cluster Management API (CMAPI) 6.4.1.

• ColumnStore has optimized the storage and usage of the Extent Map to improve scalability. ()

  • The Extent Map is now stored as a red-black tree instead of a linear array.

  • The Extent Map's new data structure provides optimizations for many operations.

Issues Fixed

Can result in a hang or crash

• ColumnStore's systemd unit files use startup and shutdown timeouts that are too low, which can lead to race conditions during startup and shutdown. (, , )

  • The race conditions could cause the Extent Map to become corrupt.

  • The race conditions could also cause the DMLProc process to repeatedly try to rollback the same transactions in a crash loop.

Can result in unexpected behavior

• When testS3Connection is executed, it does not check for permission to perform the s3:ListBucket action. ()

• When ColumnStore is down or starting up, the mcssystemready() function returns an inaccurate value. ()

Related to install and upgrade

• Internal installation scripts refer to legacy OAM components and can break some installations. ()

Platforms

In alignment with the , MariaDB Enterprise ColumnStore 6.4.1 is provided for:

• CentOS 7 (x86_64)

• Debian 10 (x86_64)

• Red Hat Enterprise Linux 7 (x86_64)

• Red Hat Enterprise Linux 8 (x86_64)

_{This page is: Copyright © 2025 MariaDB. All rights reserved.}