Changes in MySQL Cluster Manager 9.3.0 (2025-04-16, Innovation Release)

Version 9.3.0 is the latest innovation Release of the MySQL Cluster Manager. It is intended for use with MySQL NDB Cluster 9.3 and 8.4, but also supports the 8.0 series.

• Functionality Added or Changed

• Bugs Fixed

Functionality Added or Changed

• Important Change: For platforms on which OpenSSL libraries are bundled, the linked OpenSSL library for MySQL Cluster Manager has been updated to version 3.0.16. Issues fixed in OpenSSL version 3.0.16 are described at https://openssl-library.org/news/openssl-3.0-notes/. (Bug #37656086)

• Important Change: The libxml2 library bundled in the Windows distribution of MySQL Cluster Manager has been upgraded to version 2.13.6. (Bug #37475571)

• Important Change: Starting from this release, a user-defined mcmd_password must be provided in the MySQL Cluster Manager Configuration File when starting the mcmd agent, even for bootstrapping, or mcmd will fail to start. As a result, the --password option of the mcm client must also be specified for a client to connect to an agent. (Bug #37457513)

• Agent: For a bootstrapped cluster, the parameter StopOnError for ndbmtd nodes is now set to false by default, to allow a ndbmtd node to restart automatically after it fails. (Bug #37633409)

• The --privilege-tables option has been removed from the restore cluster command. (Bug #37511555)

• A new client command, list certs, lists the files created by the create certs command for a cluster. (Bug #36698435)

• The dependency of MySQL Cluster Manager on the GLib library has been removed, and the library is no longer shipped with MySQL Cluster Manager distributions. (Bug #34613622)

Bugs Fixed

• Agent: At the initial startup of a cluster, mcmd emitted the warning that the high_water_mark file could not be opened. The warning is now removed, as the file is not supposed to exist in the situation. (Bug #37696293)

• Agent: The stop process timed out for processes in the ADDED state. (Bug #37691818)

• Agent: The create certs command failed after an mcmd agent queried another agent for the certificate authority and key, which were not created by that agent. With this fix, the agent moves on to query another agent in that situation. (Bug #37639369)

• Agent: The backup cluster command failed with an "Access denied" error when the mcmd_password had a '#' at the end. (Bug #37609816)

• Client: A delete cluster command failed if the backup's schema file containing the metadata of the NDB tables was missing (for example, due to accidental manual deletion). With this fix, the command works in such situations. (Bug #37660069)

• Client: At the debug log level, the mcmd log prints the wrong comments for some of the planned steps for the create certs --renew --certs command. (Bug #37464246)