MySQL Cluster Manager 1.4 Release Notes  /  Changes in MySQL Cluster Manager 1.4.6 (2018-05-09)

Changes in MySQL Cluster Manager 1.4.6 (2018-05-09)

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 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, 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)