Release Notes for Cluster Management API 1.6.0


Cluster Management API (CMAPI) 1.6.0 is a maintenance release of CMAPI. CMAPI is a REST API for administering MariaDB Enterprise ColumnStore in multi-node topologies.

Cluster Management API 1.6.0 was released on 2021-12-13. This release is of General Availability (GA) maturity.

CMAPI 1.6.0 is compatible with MariaDB Enterprise ColumnStore 5.6 and 6. CMAPI 1.6.0 was first released with MariaDB Enterprise ColumnStore 5.6.3 and MariaDB Enterprise ColumnStore 6.2.2.

Notable Changes

  • CMAPI now disables the ExeMgr process on replica nodes to avoid unnecessary CPU usage. (MCOL-4860)

  • To avoid conflicts between systemd and CMAPI, the mariadb-columnstore systemd unit is disabled when CMAPI is installed and re-enabled when CMAPI is uninstalled. (MCOL-4938)

  • Some CMAPI Log messages have been clarified. (MCOL-4851)

  • CMAPI properly applies configuration changes to multiple nodes. (MCOL-4851)

  • Behavior for DBRM socket send and receive has been fixed. (MCOL-4851)

  • The CMAPI configuration file is now automatically created by default if it is not found. (MCOL-4851)


In alignment to the MariaDB Corporation Engineering Policy, CMAPI 1.6.0 is provided for:

  • CentOS 7 (x86_64)

  • Debian 9 (x86_64)

  • Debian 10 (x86_64)

  • Red Hat Enterprise Linux 7 (x86_64)

  • Red Hat Enterprise Linux 8 (x86_64)

  • SUSE Linux Enterprise Server 12 (x86_64)

  • SUSE Linux Enterprise Server 15 (x86_64)

  • Ubuntu 18.04 (x86_64)

  • Ubuntu 20.04 (x86_64)