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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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
.github Merge 10.6 into 10.9 2023-05-19 15:11:06 +03:00
BUILD Merge branch '10.6' into 10.11 2024-04-26 08:02:49 +02:00
client MDEV-35694: Mysqlbinlog --stop-position should warn if EOF not reached with --read-from-remote-server 2025-04-21 14:21:55 -06:00
cmake Merge branch '10.6' into 10.11 2025-04-26 10:47:03 +02:00
dbug Merge 10.6 into 10.8 2023-02-10 13:43:53 +02:00
debian Merge branch '10.6' into 10.11 2025-01-30 11:55:13 +01:00
Docs Merge 10.4 into 10.5 2022-09-26 13:34:38 +03:00
extra Merge branch '10.6' into 10.11 2025-04-21 11:23:11 +02:00
include MDEV-36780: InnoDB buffer pool reserves all assigned memory 2025-05-13 12:27:42 +03:00
libmariadb@55abb32038 new CC 2025-04-20 20:48:21 +02:00
libmysqld Merge branch '10.6' into 10.11 2025-01-30 11:55:13 +01:00
libservices Merge 10.6 into 10.11 2024-02-08 15:04:46 +02:00
man Merge branch '10.6' into 10.11 2024-07-22 15:14:50 +02:00
mysql-test RFC: Error on non-transactional optimistic parallel replication 2025-07-19 15:41:59 +02:00
mysys MDEV-36780: InnoDB buffer pool reserves all assigned memory 2025-05-13 12:27:42 +03:00
mysys_ssl MDEV-35838 libressl support differences in CRYPTO_set_mem_functions 2025-01-14 12:13:22 +11:00
plugin Merge branch '10.6' into 10.11 2025-04-21 11:23:11 +02:00
randgen/conf Group commit for maria engine. 2010-02-12 15:12:28 +02:00
scripts Merge branch '10.6' into '10.11' 2025-04-16 03:34:40 +02:00
sql RFC: Error on non-transactional optimistic parallel replication 2025-07-19 15:41:59 +02:00
sql-bench Updated sql-bench to run with PostgreSQL 14.9 2023-09-09 15:14:45 +03:00
sql-common Merge branch '10.6' into 10.11 2025-01-30 11:55:13 +01:00
storage MDEV-36759: Huge performance drop 2025-05-13 12:27:50 +03:00
strings json_unescape: don't fill unconverted characters with ? 2025-04-19 08:55:05 +10:00
support-files Merge branch '10.6' into 10.11 2025-04-26 10:47:03 +02:00
tests Merge branch '10.6' into 10.11 2025-04-26 10:47:03 +02:00
tpool Merge branch '10.6' into 10.11 2025-04-21 11:23:11 +02:00
unittest Merge 10.6 into 10.11 2024-12-19 15:38:53 +02:00
vio Merge 10.6 into 10.11 2024-10-03 10:55:08 +03:00
win Cleanup CMake code (Windows-specific) 2025-04-04 08:58:40 +02:00
wsrep-lib@e55f01ce1e MDEV-36422 Build fails with cmake 4.0.0 due to wsrep 2025-04-10 13:05:19 +02:00
zlib Merge branch 'merge-zlib' (1.3.1) into 10.4 2024-04-26 13:50:03 +02:00
.clang-format Remove duplicate key "Language" from .clang-format 2024-04-17 16:52:37 +02:00
.gitattributes Merge branch '10.5' into 10.6 2022-02-03 17:01:31 +01:00
.gitignore Merge 10.6 into 10.11 2024-10-03 10:55:08 +03:00
.gitlab-ci.yml Merge branch '10.6' into 10.11 2024-07-22 15:14:50 +02:00
.gitmodules Merge remote-tracking branch '10.4' into 10.5 2023-03-31 21:32:41 +02:00
appveyor.yml Fix appveyor config 2025-04-18 19:53:55 +02:00
BUILD-CMAKE Minor spelling fixes in code comments, docs and output 2018-01-12 16:49:02 +02:00
CMakeLists.txt Merge branch '10.6' into '10.11' 2025-04-16 03:34:40 +02:00
config.h.cmake Cleanup CMake code (Windows-specific) 2025-04-04 08:58:40 +02:00
configure.cmake Merge branch '10.6' into 10.11 2024-10-29 15:24:38 +01:00
CONTRIBUTING.md Remove mention of Freenode 2021-09-22 07:15:08 +02:00
COPYING Update FSF Address 2019-05-11 21:29:06 +03:00
CREDITS Update sponsors 2024-08-12 09:32:30 +01:00
INSTALL-SOURCE Update AskMonty and Atlassian references to MariaDB 2016-03-08 15:24:01 +02:00
INSTALL-WIN-SOURCE Update AskMonty and Atlassian references to MariaDB 2016-03-08 15:24:01 +02:00
KNOWN_BUGS.txt Changed some MySQL names in messages to MariaDB 2018-12-09 20:49:05 +02:00
README.md Update README for branch choice 2024-05-29 13:49:32 +01:00
THIRDPARTY Merge branch '10.6' into 10.11 2024-02-01 18:36:14 +01:00
VERSION bump the VERSION 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