This is a bugfix release, fixing recently discovered bugs in the previous MySQL Cluster NDB 6.3 release.
This is a source-only release. You can obtain the GPL source code for MySQL Cluster NDB 6.3.23 from ftp://ftp.mysql.com/pub/mysql/download/cluster_telco/mysql-5.1.32-ndb-6.3.23/.
This release 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 5.1.32 (see Changes in MySQL 5.1.32 (2009-02-14)).
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
Important Change; Replication:
RESET MASTER and
RESET SLAVE now reset the values
Last_SQL_Errno in the output of
SHOW SLAVE STATUS.
References: See also Bug #44270.
A new data node configuration parameter
been introduced to facilitate parallel node recovery by causing
a local checkpoint to be delayed while recovering nodes are
synchronizing data dictionaries and other meta-information. For
more information about this parameter, see
Defining MySQL Cluster Data Nodes.
Updates of the
SYSTAB_0 system table to
obtain a unique identifier did not use transaction hints for
tables having no primary key. In such cases the NDB kernel used
a cache size of 1. This meant that each insert into a table not
having a primary key required an update of the corresponding
SYSTAB_0 entry, creating a potential
With this fix, inserts on
NDB tables without
primary keys can be under some conditions be performed up to
100% faster than previously.
Packages for MySQL Cluster were missing the
ALTER TABLE ... REORGANIZE
PARTITION on an
NDBCLUSTER table having only one
partition caused mysqld to crash.
References: See also Bug #40389.
In some cases,
NDB did not check
correctly whether tables had changed before trying to use the
query cache. This could result in a crash of the debug MySQL
When using ndbmtd, NDB kernel threads could
hang while trying to start the data nodes with
set to 1.
Backup IDs greater than 231 were not handled correctly, causing negative values to be used in backup directory names and printouts. (Bug #43042)
Given a MySQL Cluster containing no data (that is, whose data
nodes had all been started using
into which no data had yet been imported) and having an empty
backup directory, executing
START BACKUP with
a user-specified backup ID caused the data nodes to crash.
When using multiple management servers and starting several API nodes (possibly including one or more SQL nodes) whose connection strings listed the management servers in different order, it was possible for 2 API nodes to be assigned the same node ID. When this happened it was possible for an API node not to get fully connected, consequently producing a number of errors whose cause was not easily recognizable. (Bug #42973)
caused such tables to become locked.
References: See also Bug #16229, Bug #18135.
ndb_error_reporter worked correctly only with GNU tar. (With other versions of tar, it produced empty archives.) (Bug #42753)
Trying to execute a
GROUP statement using a value greater than
caused data nodes to crash.
As a result of this fix, the upper limit for
UNDO_BUFFER_SIZE is now
600M; attempting to set a higher value now
fails gracefully with an error.
References: See also Bug #36702.
Disk Data: Creating a Disk Data tablespace with a very large extent size caused the data nodes to fail. The issue was observed when using extent sizes of 100 MB and larger. (Bug #39096)
It was not possible to add an in-memory column online to a table
that used a table-level or column-level
DISK option. The same issue prevented
ONLINE TABLE ... REORGANIZE PARTITION from working on
Disk Data tables.
Disk Data: Attempting to perform a system restart of the cluster where there existed a logfile group without and undo log files caused the data nodes to crash.
While issuing a
GROUP statement without an
UNDOFILE option fails with an error in the MySQL
server, this situation could arise if an SQL node failed
during the execution of a valid
LOGFILE GROUP statement; it is also possible to
create a logfile group without any undo log files using the
Using a path or file name longer than 128 characters for Disk
Data undo log files and tablespace data files caused a number of
issues, including failures of
TABLESPACE statements, as well as crashes of
management nodes and data nodes.
With this fix, the maximum length for path and file names used for Disk Data undo log files and tablespace data files is now the same as the maximum for the operating system. (Bug #31769, Bug #31770, Bug #31772)
Disk Data: When attempting to create a tablespace that already existed, the error message returned was Table or index with given name already exists. (Bug #32662)
When replicating between MySQL Clusters,
AUTO_INCREMENT was not set properly on the
Cluster Replication: Being disconnected from the cluster while setting up the binary log caused mysqld to hang or crash. (Bug #43045)
Some error messages from ndb_mgmd contained
\n) characters. This could break the
MGM API protocol, which uses the newline as a line separator.
Cluster API: When using an ordered index scan without putting all key columns in the read mask, this invalid use of the NDB API went undetected, which resulted in the use of uninitialized memory. (Bug #42591)