MySQL NDB Cluster 7.2 Release Notes

35 Changes in MySQL NDB Cluster 7.2.4 (5.5.19-ndb-7.2.4) (2012-02-15, General Availability)

MySQL NDB Cluster 7.2.4 is the first General Availability release in the MySQL NDB Cluster 7.2 release series, incorporating new features in the NDB storage engine and fixing recently discovered bugs in previous MySQL NDB Cluster 7.2 development releases.

Obtaining MySQL NDB Cluster 7.2.  MySQL NDB Cluster 7.2 source code and binaries can be obtained from https://dev.mysql.com/downloads/cluster/.

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 5.5 through MySQL 5.5.19 (see Changes in MySQL 5.5.19 (2011-12-08, General Availability)).

Functionality Added or Changed

  • Important Change: A mysqld process joining a MySQL NDB Cluster where distributed privileges are in use now automatically executes a FLUSH PRIVILEGES as part of the connection process, so that the cluster's distributed privileges take immediate effect on the new SQL node. (Bug #13340854)

Bugs Fixed

  • Packaging: RPM distributions of MySQL NDB Cluster 7.1 contained a number of packages which in MySQL NDB Cluster 7.2 have been merged into the MySQL-Cluster-server RPM. However, the MySQL NDB Cluster 7.2 MySQL-Cluster-server RPM did not actually obsolete these packages, which meant that they had to be removed manually prior to performing an upgrade from a MySQL NDB Cluster 7.1 RPM installation.

    These packages include the MySQL-Cluster-clusterj, MySQL-Cluster-extra, MySQL-Cluster-management, MySQL-Cluster-storage, and MySQL NDB Cluster-tools RPMs.

    For more information, see Installing NDB Cluster from RPM. (Bug #13545589)

  • NDB Replication: Under certain circumstances, the Rows count in the output of SHOW TABLE STATUS for a replicated slave NDB table could be misreported as many times larger than the result of SELECT COUNT(*) on the same table. (Bug #13440282)

  • Accessing a table having a BLOB column but no primary key following a restart of the SQL node failed with Error 1 (Unknown error code). (Bug #13563280)

  • At the beginning of a local checkpoint, each data node marks its local tables with a to be checkpointed flag. A failure of the master node during this process could cause either the LCP to hang, or one or more data nodes to be forcibly shut down. (Bug #13436481)

  • A node failure while a ANALYZE TABLE statement was executing resulted in a hung connection (and the user was not informed of any error that would cause this to happen). (Bug #13416603)

    References: See also: Bug #13407848.