Kristian Nielsen 60a6f2f964 RFC: Error on non-transactional optimistic parallel replication
Check thd->transaction->all.modified_non_trans_table at the end of an
rpl_group_info::SPECULATE_OPTIMISTIC event group, and stop replication
with an error if a non-transactional table was modified.

This helps the user avoid a problem when replicating from InnoDB
tables on the master to MyISAM/Aria tables on the slave, for example
if --default-storage-engine is configured differently on the two
servers. Since the transactional state of an event group is detected
on the master, optimistic and aggressive parallel replication cannot
support replicating from InnoDB to MyISAM, and this can lead to
strange errors or silent incorrect data on slave.

Detecting the problem and giving an error helps detect this problem
for users.

Signed-off-by: Kristian Nielsen <knielsen@knielsen-hq.org>
2025-07-19 15:41:59 +02:00
2025-04-26 10:47:03 +02:00
2025-04-21 11:23:11 +02:00
2025-04-20 20:48:21 +02:00
2025-04-21 11:23:11 +02:00
2025-04-16 03:34:40 +02:00
2025-05-13 12:27:50 +03:00
2025-04-26 10:47:03 +02:00
2025-04-21 11:23:11 +02:00
2025-04-04 08:58:40 +02:00
2025-04-18 19:53:55 +02:00
2025-05-13 12:27:36 +03:00

Code status:

  • Appveyor CI status ci.appveyor.com

MariaDB: The innovative open source database

MariaDB was designed as a drop-in replacement of MySQL(R) with more features, new storage engines, fewer bugs, and better performance.

MariaDB is brought to you by the MariaDB Foundation and the MariaDB Corporation. Please read the CREDITS file for details about the MariaDB Foundation, and who is developing MariaDB.

MariaDB is developed by many of the original developers of MySQL who now work for the MariaDB Corporation, the MariaDB Foundation and by many people in the community.

MySQL, which is the base of MariaDB, is a product and trademark of Oracle Corporation, Inc. For a list of developers and other contributors, see the Credits appendix. You can also run 'SHOW authors' to get a list of active contributors.

A description of the MariaDB project and a manual can be found at:

https://mariadb.org

https://mariadb.com/kb/en/

https://mariadb.com/kb/en/mariadb-vs-mysql-features/

https://mariadb.com/kb/en/mariadb-versus-mysql-compatibility/

https://mariadb.com/kb/en/new-and-old-releases/

Getting the code, building it and testing it

Refer to the following guide: https://mariadb.org/get-involved/getting-started-for-developers/get-code-build-test/ which outlines how to build the source code correctly and run the MariaDB testing framework, as well as which branch to target for your contributions.

Help

More help is available from the Maria Discuss mailing list https://lists.mariadb.org/postorius/lists/discuss.lists.mariadb.org/ and MariaDB's Zulip instance, https://mariadb.zulipchat.com/

Licensing


MariaDB is specifically available only under version 2 of the GNU General Public License (GPLv2). (I.e. Without the "any later version" clause.) This is inherited from MySQL. Please see the README file in the MySQL distribution for more information.

License information can be found in the COPYING file. Third party license information can be found in the THIRDPARTY file.


Bug Reports

Bug and/or error reports regarding MariaDB should be submitted at: https://jira.mariadb.org

For reporting security vulnerabilities see: https://mariadb.org/about/security-policy/

The code for MariaDB, including all revision history, can be found at: https://github.com/MariaDB/server

Description
MariaDB server is a community developed fork of MySQL server. Started by core members of the original MySQL team, MariaDB actively works with outside developers to deliver the most featureful, stable, and sanely licensed open SQL server in the industry.
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