This is useful for things like SqlBagOStuff and JobQueueDB
being able to write in auto-commit mode while the main
transaction round still goes on.
SqlBagOStuff already had this sort of logic.
JobQueueDB now also takes this approach so it does not have to
defer insertion except for sqlite. This makes callers more likely
to know when insertion failed or not.
Make sure LoadBalancer sets "master"/"replica" LB info itself;
this fixes a bug found in the new tests.
Bug: T140338
Bug: T42451
Change-Id: I4199a9598d7afbf976a6efa8ed84b85b56da02bd
Change 950cf6016c took care of the most,
but a few remain, either outside of includes/ and maintenance/
directories (which that change was limited to), or in code introduced
afterwards.
Change-Id: I9c363d0219ea7e71cde520faba39406949a36d27
* Move DatabaseTest and DatabaseSQLTest to libs,
and remove MediaWikiTestCase dependency.
* Refactor DatabaseTest to be a test of the Database abstract class,
not of whatever current DB backend is configured by LocalSettings.
- Remove most switches/conditionals and other tests for specific
database backends. Move those to individual test classes for
those backends instead.
- Some tests appear to have been integration tests for the PHP driver
and/or the db backend itself. Moved to a new DatabaseIntegrationTest.
- Now that only the abstract Database is invoked, the test runs a bit
faster (no real connections/queries).
* Add missing @covers tags, and remove or fix broken ones
(follows-up 26e52f0c49).
Change-Id: I9dc4a558e701d00e95789e7eb8e02926783b65ad
Undo traces of a practice we carried over from past projects and
existing examples that is neither universal nor actively encouraged in
the MediaWiki codebase.
Bug: T139301
Change-Id: I5c9c89b72a45a44aa4264a5e57b003c1a86cdf6e
Co-Authored-By: Brad Jorsch <bjorsch@wikimedia.org>
Constructs a query for the union of permutations of a set of fields, for
use in situations where the database otherwise makes poor plans due to
inability to use indexes effectively (e.g. T149077 and T168010).
Change-Id: I20980dcada664486c09198b8c45896620bd83e81
selectField() and selectFieldValues() are trivial, they just need to
pass it through to select(). In fact, selectFieldValues() was already
doing it, just no one ever updated IDatabase.
insertSelect() is a little more work. nativeInsertSelect() was
originally written as largely a copy-paste of select() and has since
gotten well out of sync. Now that we have selectSQLText(), we should be
able to just use that. DatabasePostgres's implementation can wrap the
parent implementation instead of being another copy-paste, but
DatabaseOracle seems to still need to be special.
Change-Id: I0e6a9e6daa510639d3212641606047a5db96c500
This reverts commit b67f40e5b0.
There was an issue that the web installer, when inserting initial
values into the db table site_stats, would not insert any value for
ss_active_users. That lead to some places, most notably
Special:CreateAccount, to show off -1 recent contributors.
The commit to revert solved this by setting a default value of 1 for
the ss_active_users field in the database schema. However, while the
default schema has been changed, there hasn't been any schema update
procedure implemented. Also, the default of 1 is inconsistent with
other defaults in that table.
Revert that schema change completely. Instead, make the web installer
insert 0 to the field ss_active_users (just like it does with all other
fields in that table).
Bug: T56888
Change-Id: I4298754c2238f6e5447a5df77a4ada722ba302b2
The TitleValue constructor, used by the link cache among other things,
throws an exception for DB keys which do not satisfy a simple sanity test
(starting or ending with _, or containing a space, tab, CR or LF
character). This has broken certain special pages on a number of WMF sites;
see T99736, T146778 and T155091.
The new cleanupInvalidDbKeys.php script allows these bogus entries to be
removed from the DB, making sure these exceptions won't be thrown in the
future. It cleans the title columns of the page, archive, redirect,
logging, category, protected_titles, recentchanges, watchlist, pagelinks,
templatelinks, and categorylinks tables.
The script doesn't support batching; most wikis should have fewer than 500
broken entries in each table. If need be, the script can be run several
times.
To make the LIKE queries work properly I had to fix the broken escaping
behaviour of Database::buildLike() -- previously it had a habit of double-
escaping things. Now an ESCAPE clause is added to change the escape
character from the problematic default backslash, and tests are added to
cover the changes.
Bug: T155091
Change-Id: I908e795e884e35be91852c0eaf056d6acfda31d8
I was bored. What? Don't look at me that way.
I mostly targetted mixed tabs and spaces, but others were not spared.
Note that some of the whitespace changes are inside HTML output,
extended regexps or SQL snippets.
Change-Id: Ie206cc946459f6befcfc2d520e35ad3ea3c0f1e0
It's unreasonable to expect newbies to know that "bug 12345" means "Task T14345"
except where it doesn't, so let's just standardise on the real numbers.
Change-Id: I46261416f7603558dceb76ebe695a5cac274e417
Leave \Blob as an alias. Callers can now use the Rdbms\Blob class
for "extends"/"new" and the Rdbms\IBlob interface for type hints.
Change-Id: I983b76f181ac60c1eb92c350cd27ad77ec90a192
The class DatabaseMysql corresponds to the PHP extension 'mysql' which is
deprecated since PHP 5.5, and the class DatabaseMysqli corresponds to the
PHP extension 'mysqli' which is the current MySQL driver. Given the class
DatabaseMysql is likely to be removed in the future, this change is a
first step towards this.
Bug: T120333
Change-Id: I7b8363838449cae09b360221d8f50ace3a008f11
Causes HHVM 3.12.7 to segfault and or:
Fatal error: Stack overflow in includes/libs/objectcache/BagOStuff.php on line 754
This reverts commit b47ce21cec.
Bug: T150833
Change-Id: Ia52fdf65f5e386c0eaa1046328680fb5c8a9081a
This works by setting a callback to return the cache set
options. The callback will watch DB reads and create a
merged result from said usage.
This handles callers that are missing getCacheSetOptions().
Change-Id: Ia264f011e45e8cf105480955dad7e2c4c2357b73
It's no longer an LBFactory subclass (since 5d4b009cf), and the MW-prefix
seems more natural for this class.
The class has only existed since for about 2 weeks (since 0e5cd18b7) and
is not used outside MediaWiki core across Wikimedia Git.
Change-Id: I34be982b5d10ad03e062033da9c40b4a01665289
Also make the temp table tracking catch plain "DROP TABLE"
in addition to the stricter "DROP TEMPORARY TABLE" clause.
Bug: T146300
Change-Id: Ia8306ec25e63adcdcf0dcc8f6a700dd01afdc948
Fixed some errors that popped up in CI:
* Also cleanup $domain handling in reuseConnection().
* Fix empty string handling in openForeignConnection() where
the empty string check against $dbName failed since an empty
string $domain results in $dbName being null.
Change-Id: Ie78fefa1acb401fe4e8bdc96b75053692aa0a925
This class is in /libs and cannot depend on all of MediaWiki.
Replace the call with a simple debug() call instead.
Also, make the legacy logger route/format errors from the two
new DB log types (DBConnection, DBQuery) to the old wfLogDBError
locations, including MWDebug::debugMsg().
Change-Id: I64895d3f5b9a000d8186ab6a6ffb4b76a7e9ff40
* Refactored LBFactory a bit to make this possible.
* Move newChronologyProtector() up to LBFactory and
make a lazy-loading method instead.
* Move appendPreShutdownTimeAsQuery() up to LBFactory.
* Inject the web request values for LBFactory from Setup.php.
* Remove unused laggedSlaveUsed() method.
Change-Id: Ie8a38a6f4d6359680eb6a5be24a34e30b9816479
* Add DatabaseDomain class to handle passing domains around.
It also can be cast to and from strings, which are of the same
format as wfWikiId() except with hyphens escaped.
* Make IDatabase::getDomainID() use these IDs so they can be
passed into LoadBalancer::getConnection() and friends without
breaking on sites with a hyphen in the DB name.
* Add more LBFactory unit tests for domains.
Bug: T145840
Change-Id: Icfed62b251af8cef706a899197c3ccdb730ef4d1
The Database class was previously just a short-hand for "Database::",
and such calls should still work. The class now resides in /libs/rdbms.
The subclasses now extend DatabaseBase to avoid breaking type hints
that use that (hints use either IDatabase or DatabaseBase).
Also, use CASCADE with DROP TABLE for MySQL as with other DBs.
Keep SQLite excempt due to lack of support.
Added getDomainID() methods to avoid mentioning the word "wiki".
Change-Id: Ibd05d786cb26c21dcc9cb9601f6b2b52056af9ae
* Cleanup setDomainPrefix() methods to handle existing LBs/DBs.
* This also makes it set just the prefix as the prefix rather
than as the whole domain.
* Fix regression from 789a54a5f1 where "read" mode of
tablePrefix()/dbSchema() still set the field.
* Make getConnectionRef() always have the domain set.
* Add a check in openConnection() for explicit local
connections, treating $domain as false and avoiding
openForeignConnection().
Bug: T145840
Change-Id: Idf392bd9992a215c4fa3bddf275562f3916596aa
