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MySQL NDB Cluster 7.3 Release Notes  /  Changes in MySQL NDB Cluster 7.3.21 (5.6.40-ndb-7.3.21) (2018-04-20, General Availability)

Changes in MySQL NDB Cluster 7.3.21 (5.6.40-ndb-7.3.21) (2018-04-20, General Availability)

MySQL NDB Cluster 7.3.21 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 5.6.40 (see Changes in MySQL 5.6.40 (2018-04-19, General Availability)).

Bugs Fixed

  • NDB Cluster APIs: Incorrect results, usually an empty result set, were returned when setBound() was used to specify a NULL bound. This issue appears to have been caused by a problem in gcc, limited to cases using the old version of this method (which does not employ NdbRecord), and is fixed by rewriting the problematic internal logic in the old implementation. (Bug #89468, Bug #27461752)

  • Queries using very large lists with IN were not handled correctly, which could lead to data node failures. (Bug #27397802)

    References: See also: Bug #28728603.

  • ndb_restore --print-data --hex did not print trailing 0s of LONGVARBINARY values. (Bug #65560, Bug #14198580)