Skip navigation links
MySQL 5.1 Reference Manual :: 17 MySQL Cluster NDB 6.X/7.X :: 17.7 Changes in MySQL Cluster NDB 6.X and 7.X :: 17.7.1 Changes in MySQL Cluster NDB 7.1 :: 17.7.1.4 Changes in MySQL Cluster NDB 7.1.1 (5.1.41-ndb-7.1.1) (01 February 2010 beta)
17.7.1.5 Changes in MySQL Cluster NDB 7.1.0 (5.1.39-ndb-7.1.0) (Not released alpha) »
Section Navigation      [Toggle]

17.7.1.4. Changes in MySQL Cluster NDB 7.1.1 (5.1.41-ndb-7.1.1) (01 February 2010 beta)

MySQL Cluster NDB 7.1.1 is a new beta release of MySQL Cluster, incorporating new features in the NDBCLUSTER storage engine and fixing recently discovered bugs in MySQL Cluster NDB 7.0 and previous MySQL Cluster releases.

Obtaining MySQL Cluster NDB 7.1.1.  MySQL Cluster NDB 7.1.1 is a source-only release, which can be downloaded from the MySQL FTP site at ftp://ftp.mysql.com/pub/mysql/download/mysql-5.1.41-ndb-7.1.1-beta.tgz.

This release also incorporates all bugfixes and changes made in previous MySQL Cluster NDB 6.1, 6.2, 6.3, and 7.0 releases, as well as all bugfixes and feature changes which were added in mainline MySQL 5.1 through MySQL 5.1.41 (see Section C.1.7, “Changes in MySQL 5.1.41 (05 November 2009)”).

Note

Please refer to our bug database at http://bugs.mysql.com/ for more details about the individual bugs fixed in this version.

Functionality added or changed:

  • The ndbinfo database is added to provide MySQL Cluster metadata in real time. The tables making up this database contain information about memory, buffer, and other resource usage, as well as configuration paramaters and settings, event counts, and other useful data. Access to ndbinfo is done by executing standard SQL queries on its tables using the mysql command-line client or other MySQL client application. No special setup procedures are required; ndbinfo is created automatically and visible in the output of SHOW DATABASES when the MySQL Server is connected to a MySQL Cluster.

    For more information about ndbinfo, see Section 17.5.8, “The ndbinfo MySQL Cluster Information Database”.

  • Cluster API: ClusterJ 1.0 and ClusterJPA 1.0 are now available for programming Java applications with MySQL Cluster. ClusterJ is a Java connector providing an object-relational API for performing high-speed operations such as primary key lookups on a MySQL Cluster database, but does not require the use of the MySQL Server or JDBC (Connector/J). ClusterJ uses a new library NdbJTie which allows direct access from Java to the NDB API and thus to the NDBCLUSTER storage engine. ClusterJPA is a new implementation of OpenJPA, and can use either a JDBC connection to a MySQL Cluster SQL node (MySQL Server) or a direct connection to MySQL Cluster via NdbJTie, depending on availability and operational performance.

    ClusterJ, ClusterJPA, and NdbJTie require Java 1.5 or 1.6, and MySQL Cluster NDB 7.0 or later.

    All necessary libraries and other files for ClusterJ, ClusterJPA, and NdbJTie can be found in the MySQL Cluster NDB 7.1.1 or later distribution.

Bugs fixed:

  • When a primary key lookup on an NDB table containing one or more BLOB columns was executed in a transaction, a shared lock on any blob tables used by the NDB table was held for the duration of the transaction. (This did not occur for indexed or non-indexed WHERE conditions.)

    Now in such cases, the lock is released after all BLOB data has been read. (Bug#49190)