Changes in MySQL NDB Cluster 8.4.8 (2026-01-23, LTS Release)

Note

These release notes were created with the assistance of MySQL HeatWave GenAI.

• Functionality Added or Changed

• Bugs Fixed

Functionality Added or Changed

• Reporting of File Close errors has been improved. (Bug #38726643)

• The option --skip-fk-checks was added to ndb_restore. This option modifies the behavior of --rebuild-indexes so that, when foreign keys are re-enabled, the existing data in the table is not checked for consistency. (Bug #38593666)

• The logs generated for backup and restore operations are improved in this release. (Bug #38592288)

Bugs Fixed

• NDB data nodes failed to start if either of the NDBCNTR or DBDIH system files were empty. (Bug #38424959)

• A data node failure occurred due to a reference validity check which failed. (Bug #38422448)

• BackupRecords in a participant node were not released from the pool when a backup was aborted, causing subsequent backup operations to fail. (Bug #38151265)

• Certain Transporter error messages did not include information on the source node. (Bug #37922543)

• The ndb_restore log message for total log bytes restored was incorrect (Bug #37697971)

• In the NDB management server, the TLS INFO statistics upgraded and tls were incremented if TLS authentication had failed. They should only be incremented on success. (Bug #36414579)