e4afa61053
This patch augments Gtid_log_event with the user thread-id. In particular that compensates for the loss of this info in Rows_log_events. Gtid_log_event::thread_id gets visible in mysqlbinlog output like #231025 16:21:45 server id 1 end_log_pos 537 CRC32 0x1cf1d963 GTID 0-1-2 ddl thread_id=10 as a 32 bit unsigned integer. Note this is a 32-bit value, as the connection id can only be 32 bits (see MDEV-15089 for details). While the size of Gtid event has grown by 4 bytes replication from OLD <-> NEW is not affected by it. This patch also slightly changes the logic to convert Gtid events to Query events for older replicas which don't support Gtid. Instead of hard-coding the padding of the sys var section of the generated Query event, the length to pad is dynamically calculated based on the length of the Gtid event. This work was started by the late Sujatha Sivakumar. Brandon Nesterenko took it over, reviewed initial patches and extended the work. Also thanks to Andrei for his help in finalizing the fixes for MDEV-33924, which were squashed into this patch. Reviewed-by: ============= Andrei Elkin <andrei.elkin@mariadb.com> Kristian Nielsen <knielsen@knielsen-hq.org> |
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Code 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.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/
Live QA for beginner contributors
MariaDB has a dedicated time each week when we answer new contributor questions live on Zulip. 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 our security-policy.
The code for MariaDB, including all revision history, can be found at: https://github.com/MariaDB/server