MySQL Cluster NDB 7.0.20a is a new release of MySQL Cluster which fixes a critical upgrade issue discovered in MySQL Cluster NDB 7.0.20 shortly after it was released. It is otherwise identical to MySQL Cluster NDB 7.0.20.
Obtaining MySQL Cluster NDB 7.0. The latest MySQL Cluster NDB 7.0 binaries for supported platforms can be obtained from http://dev.mysql.com/downloads/cluster/. Source code for the latest MySQL Cluster NDB 7.0 release can be obtained from the same location. You can also access the MySQL Cluster NDB 7.0 development source tree at https://code.launchpad.net/~mysql/mysql-server/mysql-cluster-7.0.
This release also incorporates all bugfixes and changes made in previous MySQL Cluster releases, as well as all bugfixes and feature changes which were added in mainline MySQL 5.1 through MySQL 5.1.51 (see Changes in MySQL 5.1.51 (2010-09-10)).
ALL DUMP command during a rolling
upgrade to MySQL Cluster NDB 7.0.20 caused the cluster to crash.