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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Marko Mäkelä 762bcb81b5 MDEV-25948 Remove log_flush_task
Vladislav Vaintroub suggested that invoking log_flush_up_to()
for every page could perform better than invoking a log write
between buf_pool.flush_list batches, like we started doing in
commit 3a9a3be1c6 (MDEV-23855).
This could depend on the sequence in which pages are being
modified. The buf_pool.flush_list is ordered by
oldest_modification, while the FIL_PAGE_LSN of the pages is
theoretically independent of that. In the pathological case,
we will wait for a log write before writing each individual page.

It turns out that we can defer the call to log_flush_up_to()
until just before submitting the page write. If the doublewrite
buffer is being used, we can submit a write batch of "future" pages
to the doublewrite buffer, and only wait for the log write right
before we are writing an already doublewritten page.
The next doublewrite batch will not be initiated before the last
page write from the current batch has completed.

When a future version introduces asynchronous writes if the log,
we could initiate a write at the start of a flushing batch, to
reduce waiting further.
2021-06-23 19:06:52 +03:00
.github Add a Github CODEOWNERS file to project 2020-08-14 09:03:34 +10:00
BUILD Fixed that compile-pentium64-valgrind-max works 2021-06-02 18:54:49 +03:00
client Merge 10.4 into 10.5 2021-06-21 14:22:22 +03:00
cmake Merge 10.4 into 10.5 2021-06-21 14:22:22 +03:00
dbug Merge 10.4 into 10.5 2021-05-26 09:47:28 +03:00
debian Merge 10.4 into 10.5 2021-06-08 16:03:53 +03:00
Docs Clean up logcheck.ignore.* configs and unify MariaDB.org links with https 2020-04-23 10:07:07 +03:00
extra Merge 10.4 into 10.5 2021-06-21 14:22:22 +03:00
include Merge 10.4 into 10.5 2021-06-21 14:22:22 +03:00
libmariadb@802ce584a2 update libmariadb 2021-06-14 23:45:31 +02:00
libmysqld followup: rename generated files to have distinct names 2021-05-27 00:40:23 +02:00
libservices Add build on AIX 2020-12-16 08:07:04 +11:00
man MDEV-25222: mysqlbinlog --base64-output wrong option default drops BINLOG from output 2021-05-17 14:38:46 -06:00
mysql-test Merge 10.4 into 10.5 2021-06-23 08:17:49 +03:00
mysys Merge 10.4 into 10.5 2021-06-21 14:22:22 +03:00
mysys_ssl Merge 10.3 into 10.4 2020-10-22 13:27:18 +03:00
plugin Merge 10.4 into 10.5 2021-05-26 09:47:28 +03:00
randgen/conf Group commit for maria engine. 2010-02-12 15:12:28 +02:00
scripts Merge 10.4 into 10.5 2021-06-21 14:22:22 +03:00
sql MDEV-25679 Wrong result selecting from simple view with LIMIT and ORDER BY 2021-06-21 22:25:37 -07:00
sql-bench Merge 10.4 into 10.5 2020-07-02 09:41:44 +03:00
sql-common Fix various spelling errors still found in code 2021-03-22 18:10:39 +11:00
storage MDEV-25948 Remove log_flush_task 2021-06-23 19:06:52 +03:00
strings Updated tests in decimal.c that match current API and usage 2021-05-11 21:25:08 +03:00
support-files Merge 10.3 into 10.4 2021-06-21 12:38:25 +03:00
tests Merge 10.4 into 10.5 2021-03-31 11:05:21 +03:00
tpool MDEV-25953 Tpool - prevent potential deadlock in simulated AIO 2021-06-17 20:39:47 +02:00
unittest Merge branch 'bb-10.4-release' into bb-10.5-release 2021-02-15 16:43:15 +01:00
vio Merge 10.4 into 10.5 2021-03-27 17:37:42 +02:00
win Merge 10.4 into 10.5 2021-06-08 16:03:53 +03:00
wsrep-lib@85b8150321 MDEV-25551 applying crash with tables without PK 2021-05-26 07:41:05 +03:00
zlib Merge branch '10.3' into 10.4 2020-12-25 09:13:28 +01:00
.clang-format Merge 10.4 into 10.5 2019-12-27 21:17:16 +02:00
.gitattributes Merge branch '10.0' into 10.1 2018-05-05 14:01:59 +02:00
.gitignore followup: rename generated files to have distinct names 2021-05-27 00:40:23 +02:00
.gitmodules Add stub for building ColumnStore 2020-06-19 21:04:17 +02:00
.travis.compiler.sh travis: use galera-4 in 10.4 branch (#1226) 2019-03-14 08:20:32 +02:00
.travis.yml Travis-CI: Sync dependencies with Debian 2021-01-03 21:14:32 +02:00
appveyor.yml Fix appvyeor's perl.exe path 2020-11-03 10:47:25 +01:00
BUILD-CMAKE Minor spelling fixes in code comments, docs and output 2018-01-12 16:49:02 +02:00
CMakeLists.txt Merge 10.4 into 10.5 2021-05-26 09:47:28 +03:00
config.h.cmake mysqld: print status display subset of memory usage. 2021-04-14 19:21:35 +10:00
configure.cmake Merge 10.3 into 10.4 2021-04-21 07:58:42 +03:00
CONTRIBUTING.md Add CONTRIBUTING file and modify README file about live QA regarding new contributors 2018-12-04 23:15:33 +04:00
COPYING Update FSF Address 2019-05-11 21:29:06 +03:00
CREDITS Update sponsors 2021-03-12 07:02:29 +11:00
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 Merge 10.4 into 10.5 2021-06-21 14:22:22 +03:00
THIRDPARTY Merge 10.1 into 10.2 2019-05-13 17:54:04 +03:00
VERSION bump the VERSION 2021-06-22 23:00:01 -04:00

Code status:

  • Appveyor CI status ci.appveyor.com

MariaDB: The open source relational 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/

Help

More help is available from the Maria Discuss mailing list https://launchpad.net/~maria-discuss, MariaDB's Zulip instance, https://mariadb.zulipchat.com/ and the #maria IRC channel on Freenode.

Live QA for beginner contributors

MariaDB has a dedicated time each week when we answer new contributor questions live on Zulip and IRC. From 8:00 to 10:00 UTC on Mondays, and 10:00 to 12:00 UTC on Thursdays, anyone can ask any questions theyd like, and a live developer will be available to assist.

New contributors can ask questions any time, but we will provide immediate feedback during that interval.

Licensing


NOTE:

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