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NetVault Plug-in for MySQL 11.2 - Release Notes

Known issues

The plug-in name has been changed to use the “Plug-in for <product>” naming convention, that is, Plug‑in for MySQL. If you upgrade the plug-in for a system that is managed by NetVault Backup Server 9.2, a consequence of the name change is that savesets created with the upgraded plug-in are not displayed in the NVBU Restore window when the Selection Method is set to Plugin; only savesets created with an earlier version are displayed.

Workaround for NetVault Backup Server 9.2: On the Selections tab of the NVBU Restore window, select Job in the Selection Method list to view savesets or backups created with a previous version or the upgraded plug-in.

This issue was corrected in NetVault Backup 10.0.

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Due to MySQL bug 69953, performing a restore to MySQL Server 5.5 or 5.6 fails to drop the existing slow_log table in the mysql database if MySQL logging is enabled. Therefore, the restore also fails to restore the same table. If the slow_log table is critical to your environment, re-create the slow_log table manually after the restore job completes. This issue is corrected in MySQL 5.7.

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Default setting of lower_case_table_names system variable affects MySQL behavior on Mac OS X: The inconsistent behavior of case-sensitivity of MySQL on Mac OS X platforms affects the ability of the plug-in to restore backups. To ensure that you accommodate this inconsistency, be aware of the following when using the plug-in with Mac OS X:

If the lower_case_table_names system variable is set to 1, Incremental Restores work correctly for databases that were created using lowercase, uppercase, or mixed-case names. Also, the database names are displayed in the NetVault Backup Console using lowercase letters regardless of how the actual names were created.
If the lower_case_table_names system variable is set to 2, the default setting on Mac OS X, Incremental Restores only work correctly for databases that were created using lowercase names. Also, the database names are displayed in the NetVault Backup Console using the same format with which they were created.

If you change the value of the lower_case_table_names system variable, stop and restart the MySQL Server to ensure that the change is implemented. For more information about this MySQL-related issue, see: http://dev.mysql.com/doc/refman/5.0/en/identifier-case-sensitivity.html

18430 (MYG‑235)

Selecting Enable MySQL Replication but not configuring replication causes backups to fail: If you select the Enable MySQL Replication check box on the Configure dialog box but do not configure replication, backups fail. To correct this issue, either clear the Enable MySQL Replication check box on the Configure dialog box or set up replication and run the backup job again.

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Under certain conditions, all InnoDB tables are backed up: All InnoDB tables in a MySQL instance are backed up if either of the following conditions is met:

Example: You have a MySQL Instance with two databases (DB1 and DB2). Each database contains two tables: DB1 has T1_InnoDB and T1_MyISAM and DB2 has T2_InnoDB and T2_MyISAM. If you back up T1_MyISAM and T2_MyISAM, T1_InnoDB and T2_InnoDB are also backed up. If you include one of the InnoDB tables, only that InnoDB table is backed up. If you select one of the databases, only the tables in the database are backed up.
Example: You have a MySQL Instance with two databases (DB1 and DB2). Each database contains two tables: DB1 has T1_InnoDB and T1_MyISAM and DB2 has T2_InnoDB and T2_MyISAM. If you back up DB1 and DB2 and exclude T1_InnoDB and T2_InnoDB, T1_InnoDB and T2_InnoDB are also backed up. If you exclude only one of the two InnoDB tables, only the other InnoDB table is backed up.

This behavior reflects current MEB (mysqlbackup utility) behavior, which might change in a future release (post-3.8.1).

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The plug-in does not support use of versions 3.12 and 4.0 of the MEB-based method in a clustered environment. You can only use these versions in a standalone environment.

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System requirements

Upgrade and compatibility

Upgrades and new installs of MySQL: As explained in Bug 68807 for MySQL, http://bugs.mysql.com/bug.php?id=68807, mysql_install_db ignores /etc/my.cnf in MySQL 5.6. Because MySQL 5.6 creates InnoDB statistic tables (slave_master_info, mysql/slave_relay_log_info, innodb_index_stats, innodb_table_stats, and slave_worker_info) and adds them to the installation directory (basedir) of MySQL, you might encounter a conflict with the innodb_data_file_path = ibdata1:2000M;ibdata2:10M:autoextend option contained in the “my.cnf” file. The file_path option places the InnoDB files one directory level higher than the basedir, which can cause the following error to is displayed in the MySQL error log:
Until you address this error, the plug-in cannot browse the main MySQL database, and the following error is displayed: "Failed to fetch row from query result: showtable status like 'innodb\_index\_stats'"
Because this option originated from a recommended sample “my.cnf” file for an earlier version of MySQL, this issue usually occurs on upgrades or new installs that retained the earlier version of the “my.cnf” file. Quest recommends that you do not use the file_path option on new installations and that you move the ibdata files to basedir for upgrades. For assistance, contact MySQL Support. (22367)

Product licensing

To obtain the license key for your NetVault Backup Server environment, determine the NetVault Machine ID of your main NetVault Backup Server. Also identify the machine IDs of any clients running application plug-ins, such as Oracle, MySQL, PostgreSQL, SQL Server, and Exchange.

You can use the NetVault Configuration Wizard to install the product license keys. Alternatively, you can install the license keys from the Manage Clients page.

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