This release incorporates new features in the
NDB storage engine and fixes
recently discovered bugs in MySQL Cluster NDB 7.0.17.
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 5.1.47 (see Changes in MySQL 5.1.47 (2010-05-06)).
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
More finely grained control over restart-on-failure behavior is
provided with two new data node configuration parameters
limits the total number of retries made before giving up on
starting the data node;
the number of seconds between retry attempts.
These parameters are used only if
StopOnError is set to 0.
For more information, see Defining MySQL Cluster Data Nodes. (Bug #54341)
ndb_restore always reported 0 for the
GCPStop (end point of the backup). Now it
provides useful binary log position and epoch information.
configuration parameter was not handled correctly for CPU ID
values greater than 255.
Following a failure of the master data node, the new master sometimes experienced a race condition which caused the node to terminate with a GcpStop error. (Bug #56044)
Trying to create a table having a
TEXT column with
'' failed with the error Illegal null
attribute. (An empty default is permitted and
NDB should do the same.)
--nodaemon logged to the
console in addition to the configured log destination.
The warning MaxNoOfExecutionThreads
#) > LockExecuteThreadToCPU count
#), this could cause
contention could be logged when running
ndbd, even though the condition described can
occur only when using ndbmtd.
Startup messages previously written by
stdout are now
written to the cluster log instead when
LogDestination is set.
The graceful shutdown of a data node could sometimes cause transactions to be aborted unnecessarily. (Bug #18538)
References: See also Bug #55641.
Cluster Replication: The graceful shutdown of a data node in the master cluster could sometimes cause rows to be skipped when writing transactions to the binary log, leading to an inconsistent slave cluster. (Bug #55641)
References: See also Bug #18538.
--expire_logs_days option when
there were old binary logs to delete caused SQL nodes to crash