MySQL Enterprise Backup 3.12.3
------------------------------
This is a release of MySQL Enterprise Backup (MEB), Oracle's online
backup solution for InnoDB tables in MySQL. MEB can also be used to
do warm backup of MyISAM and other storage engine files. For the
avoidance of doubt, this particular copy of the software is released
under a commercial license and the GNU General Public License does
not apply. MySQL Enterprise Backup is brought to you by Oracle.
Copyright (c) 2003, 2016, Oracle and/or its affiliates. All rights reserved.
*********************************************************************
Third-Party Component Notices
*********************************************************************
This distribution may include materials developed by third
parties. For license and attribution notices for these
materials, please refer to the included file LICENSE.third_party
or documentation that accompanies this distribution.
The documentation is also available online at the following URL:
http://dev.mysql.com/doc/mysql-enterprise-backup/3.12/en/index.html
**********************************************************************
Changes in MySQL Enterprise Backup 3.12.3
* Functionality Added or Changed
* Bugs Fixed
Functionality Added or Changed
* There are two enhancements on how you can configure SSL
host authenticate for cloud operations of MySQL
Enterprise Backup:
+ A CA certificate directory, in addition to the
default folder of the system, can now be specified
with the new --cloud-ca-path option.
+ mysqlbackup now supports authentication using a CA
bundle file, whose path is specified by the new
--cloud-ca-info option.
See descriptions for the two new options in Cloud Storage
Options
(http://dev.mysql.com/doc/mysql-enterprise-backup/3.12/en
/backup-cloud-options.html) for more information. (Bug
#22761313)
* mysqlbackup used to sync all data from the buffer cache
to the hard disk before closing all tables at the end of
a backup operation. However, for systems with slow
storage devices and databases with a huge number of
tables, the sync would increase the backup time
significantly. To shorten the backup time for those and
other cases, starting with this release, the sync is no
longer performed automatically. Users who want the sync
to be performed at the end of a backup have to use the
new --free-os-buffer option.
(Bug #22561345)
* To avoid completing a backup of a slave server when
temporary tables are still open on the slave, which will
cause the restored slave server to be in an inconsistent
replication state, mysqlbackup now has a new mechanism
for ensuring that all temporary tables have already been
closed before finishing a slave backup. See "Temporary
tables on statement-based replication (SBR) slave" for
details. A new option, --safe-slave-backup-timeout, has
been created for specifying the time mysqlbackup will
wait for all temporary tables to be closed before it
times out. (Bug #19158516)
* The compression options
(http://dev.mysql.com/doc/mysql-enterprise-backup/3.12/en
/backup-compression-options.html) can now be used with
the backup-and-apply-log operation to create a directory
backup that is prepared and compressed; the backup can
then be restored using the copy-back operation and the
--uncompress option. (Bug #18913565)
* During a copy-back-and-apply-log or a copy-back
operation, mysqlbackup now checks that the specified
values for the innodb_log_files_in_group and
innodb_log_file_size options match those recorded in the
backup's backup-my.cnf file, and throws an error if the
values do not match. This prevents mysqlbackup from
restoring the backup with the wrong parameters, which
would result in a restored server that cannot be started.
(Bug #14751027)
Bugs Fixed
* An incremental or compressed backup might fail with an
end-of-file error if there are large data files that kept
growing during the backup. It was because, as the data
files expanded, the write process altered the file sizes,
which confused the read process for the same files. With
this fix, file sizes and information on them is now
properly handled. (Bug #23048004)
References: This issue is a regression of: Bug #19149210.
* Restoring a cloud backup sometimes failed with Error 18:
Transferred a partial file. It was because mysqlbackup
created wrong range headers for its REST requests for
partial downloads. (Bug #23035334)
* mysqlbackup crashed when a validate operation was
performed on an incremental backup that contained an undo
tablespace but not a system tablespace. It was because
mysqlbackup did not handle data files for undo
tablespaces properly, and this fix corrects that. (Bug
#22960185)
* Offline backups using MySQL Enterprise Backup 3.12.2 and
4.0.1 sometimes failed, with occasional crashes of
mysqlbackup. (Bug #22595461)
* For a backup of a slave server, the file name of the
master server's binary log and the binary log position
for starting replication, which were stored in the file
backup_varaibles.txt in the backup as masterlog_file and
masterlog_pos, got corrupted when an apply-log or
copy-back-and-apply-log operation was applied to the
backup. (Bug #22329306)
* validate operations for backup images and backup-to-image
operations left over a temporary folder (/tmp) after the
operations were over. (Bug #20912357)
* Backups failed for a server that had once been started
with the --log-bin option and then restarted without it.
It was because mysqlbackup, seeing the old binary log
index file on the server, looked in vain for the current
binary log files, reported that they could not be found,
and then quitted. With this fix, mysqlbackup checks if
binary logging is enabled for the server; if it is not,
mysqlbackup then skips the copying of the binary log into
the backup. (Bug #20873010)
MySQL Enterprise Backup 3.12.3 for Linux (64bit)
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