- MariaDB\ 71.8%
- C++ 16.4%
- C 10.4%
- Shell 0.5%
- Perl 0.4%
- Other 0.3%
e71e613353
lock_wait(): Replaces lock_wait_suspend_thread(). Wait for the lock to be granted or the transaction to be killed using mysql_cond_timedwait() or mysql_cond_wait(). lock_wait_end(): Replaces que_thr_end_lock_wait() and lock_wait_release_thread_if_suspended(). lock_wait_timeout_task: Remove. The operating system kernel will resume the mysql_cond_timedwait() in lock_wait(). An added benefit is that innodb_lock_wait_timeout no longer has a 'jitter' of 1 second, which was caused by this wake-up task waking up only once per second, and then waking up any threads for which the timeout (which was only measured in seconds) was exceeded. innobase_kill_query(): Set trx->error_state=DB_INTERRUPTED, so that a call trx_is_interrupted(trx) in lock_wait() can be avoided. We will protect things more consistently with lock_sys.wait_mutex, which will be moved below lock_sys.mutex in the latching order. trx_lock_t::cond: Condition variable for !wait_lock, used with lock_sys.wait_mutex. srv_slot_t: Remove. Replaced by trx_lock_t::cond, lock_grant_after_reset(): Merged to to lock_grant(). lock_rec_get_index_name(): Remove. lock_sys_t: Introduce wait_pending, wait_count, wait_time, wait_time_max that are protected by wait_mutex. trx_lock_t::que_state: Remove. que_thr_state_t: Remove QUE_THR_COMMAND_WAIT, QUE_THR_LOCK_WAIT. que_thr_t: Remove is_active, start_running(), stop_no_error(). que_fork_t::n_active_thrs, trx_lock_t::n_active_thrs: Remove. |
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Code status:
travis-ci.org (10.5 branch)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.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 they’d 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