NetVault Plug-in for MySQL 12.2.1 - Release Notes

Added support for MySQL authentication plug-ins that implement the following SHA-256 hashing methods: sha256_password and caching_sha2_password.

DNMYSQL-418, DNMYSQL-434

Added support for MySQL Commercial Server 8.0.

DNMYSQL-431

Added supported for MySQL Enterprise Backup (MEB) 8.0.

DNMYSQL-432

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.

DNMYSQL-319 (30852)

Because backup data is streamed from the MySQL Server directly to the NetVault Backup Media Manager, use of special characters in database names might be interpreted as a sequence command, which affects the integrity of the backup data.

Workaround: To avoid potential issues, do not use the following characters in database names: $ ^ = @ # % +

DNMYSQL-379

In MySQL replication environments, backup job fails if the master info log or relay info log are written to tables instead of files.

Workaround: To prevent a backup job failure, create empty master.info and relay-log.info files in the index log path directory. To create the empty logs, run the following commands under mysql user:

$ touch /var/lib/mysql/relay-log.info

$ touch /var/lib/mysql/master.info

DNMYSQL-439

Due to a difference in required libraries, NetVault Backup Plug‑in for MySQL may not run on Red Hat Enterprise Linux (RHEL) 8.0.

Workaround: If libnsl.so.1 does not exist, create a symbolic link to libnsl.so.2 using the following commands for 64-bit libnsl.so:

DNMYSQL-442

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 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

DNMYSQL-133 (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.

DNMYSQL-241 (21629)

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:

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

DNMYSQL-275 (22383)

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.

DNMYSQL-363 (32199)