9878238f74
btr_cur_t::search_leaf(): When the index root page is also a leaf page, we may need to upgrade our existing shared root page latch into an exclusive latch. Even if we end up waiting, the root page won't be able to go away while we hold an index()->lock. The index page may be split; that is all. btr_latch_prev(): Acquire the page latch while holding a buffer-fix and an index tree latch. Merge the change buffer if needed. Use buf_pool_t::page_fix() for this special case instead of complicating buf_page_get_low() and buf_page_get_gen(). row_merge_read_clustered_index(): Remove some code that does not seem to be useful. No difference was observed with regard to removing this code when a CREATE INDEX or OPTIMIZE TABLE statement was run concurrently with sysbench oltp_update_index --tables=1 --table_size=1000 --threads=16. buf_pool_t::unzip(): Decompress a ROW_FORMAT=COMPRESSED page. buf_pool_t::page_fix(): Handle also ROW_FORMAT=COMPRESSED pages as well as change buffer merge. Optionally return an error. Add a flag for suppressing a page latch wait and a special return value -1 to indicate that the call would block. This is the preferred way of buffer-fixing blocks. The functions buf_page_get_gen() and buf_page_get_low() are only being invoked with rw_latch=RW_NO_LATCH in operations on SPATIAL INDEX. buf_page_t: Define some static functions for interpreting state(). buf_page_get_zip(), buf_read_page(), buf_read_ahead_random(), buf_read_ahead_linear(): Remove the redundant parameter zip_size. We must look up the tablespace and can invoke fil_space_t::zip_size() on it. buf_page_get_low(): Require mtr!=nullptr. buf_page_get_gen(): Implement some lock downgrading during recovery. ibuf_page_low(): Use buf_pool_t::page_fix() in a debug check. We do wait for a page read here, because otherwise a debug assertion in buf_page_get_low() in the test innodb.ibuf_delete could occasionally fail. PageConverter::operator(): Invoke buf_pool_t::page_fix() in order to possibly evict a block. This allows us to remove some special case code from buf_page_get_low(). |
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| .github | ||
| BUILD | ||
| client | ||
| cmake | ||
| dbug | ||
| debian | ||
| Docs | ||
| extra | ||
| include | ||
| libmariadb@486ce75d64 | ||
| libmysqld | ||
| libservices | ||
| man | ||
| mysql-test | ||
| mysys | ||
| mysys_ssl | ||
| plugin | ||
| randgen/conf | ||
| scripts | ||
| sql | ||
| sql-bench | ||
| sql-common | ||
| storage | ||
| strings | ||
| support-files | ||
| tests | ||
| tpool | ||
| unittest | ||
| vio | ||
| win | ||
| wsrep-lib@31db847676 | ||
| zlib | ||
| .clang-format | ||
| .gitattributes | ||
| .gitignore | ||
| .gitlab-ci.yml | ||
| .gitmodules | ||
| appveyor.yml | ||
| BUILD-CMAKE | ||
| CMakeLists.txt | ||
| config.h.cmake | ||
| configure.cmake | ||
| CONTRIBUTING.md | ||
| COPYING | ||
| CREDITS | ||
| INSTALL-SOURCE | ||
| INSTALL-WIN-SOURCE | ||
| KNOWN_BUGS.txt | ||
| README.md | ||
| THIRDPARTY | ||
| VERSION | ||
Code 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.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