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MySQL NDB Cluster 7.5 Release Notes  /  Release Series Changelogs: MySQL NDB Cluster 7.5  /  Changes in MySQL NDB Cluster 7.5.18 (5.7.30-ndb-7.5.18) (2020-04-28, General Availability)

Changes in MySQL NDB Cluster 7.5.18 (5.7.30-ndb-7.5.18) (2020-04-28, General Availability)

Functionality Added or Changed

  • Added the --ndb-log-fail-terminate option for mysqld. When used, this causes the SQL node to terminate if it is unable to log all row events. (Bug #21911930)

    References: See also: Bug #30383919.

Bugs Fixed

  • When restoring signed auto-increment columns, ndb_restore incorrectly handled negative values when determining the maximum value included in the data. (Bug #30928710)

  • When a node ID allocation request failed with NotMaster temporary errors, the node ID allocation was always retried immediately, without regard to the cause of the error. This caused a very high rate of retries, whose effects could be observed as an excessive number of Alloc node id for node nnn failed log messages (on the order of 15,000 messages per second). (Bug #30293495)

  • For NDB tables having no explicit primary key, NdbReceiverBuffer could be allocated with too small a size. This was due to the fact that the attribute bitmap sent to NDB from the data nodes always includes the primary key. The extra space required for hidden primary keys is now taken into consideration in such cases. (Bug #30183466)