Dear MySQL Users,
MySQL Cluster Manager 1.4.6 can be downloaded from
the My Oracle Support (MOS) website. It will also be available
on Oracle Software Delivery Cloud at http://edelivery.oracle.com with
the next monthly update
MySQL Cluster Manager is an optional component of the MySQL Cluster Carrier
Grade Edition, providing a command-line interface that automates common
management tasks, including the following online operations:
- Configuring and starting MySQL Cluster
- Upgrades
- Adding and removing cluster nodes
- Adding and removing site hosts
- Configuration changes
- Backup and restore
MySQL Cluster Manager is a commercial extension to the MySQL family of
products.
More details can be found at http://www.mysql.com/products/cluster/mcm/.
A brief summary of changes in MySQL Cluster Manager version 1.4.6 is
listed below:
Changes in MySQL Cluster Manager 1.4.6 (2018-05-09)
* Functionality Added or Changed
* Bugs Fixed
Functionality Added or Changed
* Agent: The list backups command has been extended with a
new --agent option for listing agent backups created with
the backup agents command. See the option description for
details. (Bug #27168819, Bug #27850905)
Bugs Fixed
* Agent: The collect logs command failed to include logs
that had been rotated with the rotate log command. (Bug
#27918231)
* Agent: A list backups command failed with an Error: 1159
(timeout reading communication packets) from one of the
mcmd agents when it had a huge number of backups to list.
With this fix, mcmd has been optimized to enumerate a
larger number of backups. (Bug #27868499)
* Agent: The mcmd agent quit unexpectedly if the cluster's
global configuration file (config.ini usually) contained
a [system] section. It was because in MySQL Cluster
Manager, the handling for the [system] section was
missing, which has now been added by this fix. The
addition also allows mcmd to set the name attribute in
the [system] section, which is required for MySQL
Enterprise Monitor 4.0 to monitor the cluster.
(Bug #27638138, Bug #27519205)
* Agent: The collect logs command hung if a host was
referenced earlier with the localhost IP address
127.0.0.1 in the create site or create cluster command.
(Bug #27551932)
* Agent: The create cluster command was successful even if
the format of an IP address submitted with it as a
hostname was inconsistent with the format used earlier
with the add hosts command (for example, a host was added
to a site as 127.0.0.1, and then added to a cluster as
127.0.01). A subsequent attempt to start the cluster
failed. This fix added consistency check for the host
names, so that inconsistent IP addresses are now
rejected. (Bug #27551776)
* Agent: When a maintenance restart occurred for a cluster
node while mcmd was shutting down, the node remained in
the starting stage indefinitely. With this fix, a node
restart will not be attempted when mcmd is shutting down.
(Bug #27513481)
* Agent: An Internal error occurred when mcmd tried to set
the MySQL Server system variable
audit_log_read_buffer_size with a set command. It was
because of the wrong data type used internally for the
variable, which has now been fixed. (Bug #27413635)
* Agent: mcmd quit unexpectedly sometimes when running a
restore cluster command. It was due to a race condition
in which mcmd started executing the restore before the
required ndbapi node was ready for the task. This fix
added checks to eliminate the race condition. (Bug
#27342271)
On behalf of MySQL Release Engineering Team,
Surabhi Bhat
