* All maintenance scripts pretty much assumed this behavior, but it
was not actually the case. This can avoid some massive lag problems.
Change-Id: I5894409d6abade16afd8144f6689c2aff3fa7327
- Swap "$variable type" to "type $variable"
- Added missing types
- Fixed spacing inside docs
- Makes beginning of @param/@return/@var/@throws in capital
- Changed some types to match the more common spelling
Change-Id: I7b65fe04db431342cc58b469dc48f41a50c4e891
* Made wfWaitForSlaves() use it instead of using isOpen() incorrectly.
The index for the master is 0, not DB_MASTER. This fixes 2979f0b6.
Change-Id: I48e5c7f10d8fe6b8bf6e830282352e3238b5d3ae
* This method is currently hit when bots use the maxlag API parameter
* Also added a $fallback param to ObjectCache::newAccelerator so code
does not have to keep reinventing that logic.
Change-Id: I45bf1085301c5cf69b29b494a146c6a067534581
Not only was this global unused, it also caused the LoadBalancer
to look for the wrong array key, which would always set
$mWaitTimeout to 10 in the conditional. There is also
a manual function LoadBalancer::waitTimeout() for this.
Change-Id: I4b409ef890bec5aac7f666a2ed3dff9ea8bc14cc
Swapped some "$var type" to "type $var" or added missing types
before the $var. Changed some other types to match the more common
spelling. Makes beginning of some text in captial.
Also added some missing @param.
Change-Id: I3595e9aac69ac42fbb74b0783fae0ad9bcc831aa
Variants included 'in <version>', 'as of <version>' and just the
version number.
Some @deprecated annotations do not have the version number at all,
I want to hunt them down separately.
Change-Id: I8208c6097098f4735d4f51bc42254675f1f27f6d
One of the causes (if not the cause) of bug 56269 is if something
manages to throw an exception that makes it to MediaWiki::run's
last-resort exception catcher while having an open database transaction:
the transaction never gets committed or rolled back, so it gets
implicitly rolled back and a warning is raised.
The API has the opposite problem in bug 63145: it catches the exception
but then does the normal DB shutdown which *commits* the transaction.
This is certainly the Wrong Thing to do.
Ideally, neither of these would ever happen because any code using
transactions would have its own try-catch that would catch any
exception, rollback the transaction, and then rethrow the exception. But
it happens anyway, so let's have both of these last-resort exception
handlers do the rollback, and also log the exception so the throwing
code has a better chance of being properly fixed.
Bug: 56269
Bug: 63145
Change-Id: I8f1da51187b281fe4afc0d5a0c49f5caf3612e92
I found two calls to wfLogDBError() that do not add a new line
at the end of the message. So instead of adding them to that
entries, I changed wfLogDBError() to automatically put it on
icoming messages; as for wfDebugLog().
Change-Id: Id014b5827a0aeef6873ebf08d78f0a3d7581d63b
In LoadBalancer::reuseConnection(), if the condition
"$serverIndex === null || $refCount === null" is met,
then those variables will not be used. So only define
them when they will readlly be used.
Change-Id: Ifbd4131f40d3babe733b8723d0d29d39890bb309
* Connections for a group should not override the generic connection handle.
That can cause special DBs to be reused for general queries more so than
optimal.
* Also made the code use ProfileSection to clean it up a bit.
Change-Id: Ia8973133a93410bd906d8ad52a711a7d810df2f6
These should fix the last (but one) remark by the PHPStorm code analyser
on code documentation in includes/db.
Change-Id: Ib836ab052dbc8a3f347db3013af2f00138231d47
Since r13582, servers with zero load have been isolated from the rest of
the servers in the section in terms of query flow. However, lag checks
still remained. This is not appropriate for backup/QueryPage servers
that are routinely lagged. IIRC we dealt with this once before with a
special case in the core excluding benet from master pos waits, but that
doesn't seem like a very appropriate solution today. Perhaps there is an
application for including zero-load slaves in lag checks, but I can't
think of any right now.
Related WMF conf change in I8fac5c99.
Change-Id: Id354039123f8c04febc8090eea9940fff044c5ea
Now database classes have an extra "foreign" property when used in
foreign databases, where $wgSharedDB and $wgSharedTables are not
considered.
Bug: 48819
Change-Id: I45db6860d0a4b4480e0b93aa7e750f096424e40f
The error was:
Catchable fatal error: Argument 1 passed to DatabaseMysql::masterPosWait()
must implement interface DBMasterPos, boolean given, called in
/var/www/DevWiki/core/includes/db/LoadBalancer.php on line 419
Change-Id: I230585930c1424b0868f9aa290167c66bc6848bd
We thought we'd fixed it previously, but the LB now connects to the
foreign slaves and tries to select $wgDBname. Fixing this by having
doWait() open connections that don't select any DB name, by passing
the empty string as the DB name. This is an undocumented feature
in the DatabaseMysql constructor, apparently.
Change-Id: Icc5594143a3eaa31170a7fc8c93d429c1a7dd575
* Refactored LoadBalancer::reportConnectionError()
* Removed PHP4-style reference from DatabaseError constructors
* Allowed to not pass a database to the DBError family of exceptions.
Change-Id: If9570b45ea7285de2b8b2391e704bc01f76be48a
Doxygen expects parameter types to come before the
parameter name in @param tags. Used a quick regex
to switch everything around where possible. This
only fixes cases where a primitve variable (or a
primitive followed by other types) is the variable
type. Other cases will need to be fixed manually.
Change-Id: Ic59fd20856eb0489d70f3469a56ebce0efb3db13
Added/removed spaces around logical/arithmetic operator
Reduced multiple empty lines to one empty line
Removed wrong tabs before comments at end of line
Removed too many spaces in assigments
Change-Id: I2bba4e72f9b5f88c53324d7b70e6042f1aad8f6b
