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MySQL Cluster Manager 1.4.6 has been released
Posted by: Surabhi Bhat
Date: May 09, 2018 09:15AM

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 

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