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MySQL NDB Cluster 7.3 Release Notes  /  Changes in MySQL NDB Cluster 7.3.25 (5.6.44-ndb-7.3.25) (2019-04-26, General Availability)

Changes in MySQL NDB Cluster 7.3.25 (5.6.44-ndb-7.3.25) (2019-04-26, General Availability)

MySQL NDB Cluster 7.3.25 is a new release of NDB Cluster, based on MySQL Server 5.6 and including features from version 7.3 of the NDB storage engine, as well as fixing a number of recently discovered bugs in previous NDB Cluster releases.

Obtaining MySQL NDB Cluster 7.3.  MySQL NDB Cluster 7.3 source code and binaries can be obtained from

For an overview of changes made in MySQL NDB Cluster 7.3, see What is New in NDB Cluster 7.3.

This release also incorporates all bug fixes and changes made in previous NDB Cluster releases, as well as all bug fixes and feature changes which were added in mainline MySQL 5.6 through MySQL 5.6.44 (see Changes in MySQL 5.6.44 (2019-04-25, General Availability)).

Functionality Added or Changed

  • Building with CMake3 is now supported by the compile-cluster script included in the NDB source distribution.

Bugs Fixed

  • Important Change: The dependency of ndb_restore on the NDBT library, which is used for internal testing only, has been removed. This means that the program no longer prints NDBT_ProgramExit: ... when terminating. Applications that depend upon this behavior should be updated to reflect this change when upgrading to this release.

  • An NDB table having both a foreign key on another NDB table using ON DELETE CASCADE and one or more TEXT or BLOB columns leaked memory.

    As part of this fix, ON DELETE CASCADE is no longer supported for foreign keys on NDB tables when the child table contains a column that uses any of the BLOB or TEXT types. (Bug #89511, Bug #27484882)