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40 commits

Author SHA1 Message Date
Domas Mituzas
3488efe876 allow bypassing lag checks 2006-01-23 15:27:44 +00:00
Domas Mituzas
44ab92339b miliseconds... 
* Do not check master lag
* check just thread counts on SHOW STATUS, less bits on wire, less rows to handle for php
 2006-01-10 10:59:09 +00:00
Ævar Arnfjörð Bjarmason
a26d5a49d7 * s~\t+$~~ 2006-01-07 13:31:29 +00:00
Ævar Arnfjörð Bjarmason
d8e90514ab * Documentation: @private => @access private 2006-01-07 12:48:44 +00:00
Antoine Musso
2ca68a256d Clean up unused globals! 2005-12-04 18:27:59 +00:00
Tim Starling
af47b8260c Ability to set the blobs table name for any server in an external cluster. This would allow, for example, the merging of all external storage for a large wikipedia dump into a single database, with "clusters" distinguished by table name. 2005-10-29 01:41:36 +00:00
Tim Starling
5ef53bb049 Give informative connection errors more often 2005-10-28 01:08:49 +00:00
Tim Starling
396a109504 Meaningful error message when all servers are busy 2005-10-24 20:38:46 +00:00
Brion Vibber
219094eb01 Committing various live hacks from Wikimedia servers 2005-10-22 20:52:30 +00:00
Tim Starling
0d8eb4c996 Tweaked polling time 2005-09-20 13:37:29 +00:00
Tim Starling
fb784e6cdf Sleep time is highly variable, removing it from the profiling section name 2005-08-23 16:55:54 +00:00
Brion Vibber
f0cd9a8d0e * Add ability to break off certain debug topics into additional log files; 
use $wgDebugLogGroups to configure and wfDebugLog() to log.
 2005-08-17 20:07:33 +00:00
Tim Starling
34331f8e2a fixed connection error handling 2005-08-14 04:42:55 +00:00
River Tarnell
b817c0c15f merge ORACLE_WORK. sorry, this may break some parts of MySQL, i did not test extensively. 2005-08-02 13:35:19 +00:00
Tim Starling
5c21483236 fixed repeated balancing bug 2005-06-25 13:48:02 +00:00
Tim Starling
0503c59bdf various load balancing tweaks 2005-06-19 02:39:43 +00:00
Brion Vibber
3376d45088 * (bug 2368) Avoid fatally breaking PHP 4.1.2 in a debug line 2005-06-10 01:32:05 +00:00
Tim Starling
a12ce8f747 new load balancing algorithm 2005-06-01 06:18:49 +00:00
Tim Starling
c911354512 bug fix 2005-05-06 03:48:15 +00:00
Tim Starling
6c1ccfd02e Made updateSpecialPages.php more robust to database problems 2005-04-24 08:31:12 +00:00
Tim Starling
073ac49c1b Implemented query group feature, needed for slow queries esp. in 1.4. Hopefully fixed lagged slave mode. Added a simple method to simulate lagged slaves. 2005-04-23 11:49:33 +00:00
Tim Starling
ef3b9225fd Fixed bug causing transactions to not be started all the time 2005-03-27 18:06:44 +00:00
Tim Starling
9969e8ee48 Minor load balancing improvements 2005-01-15 10:13:36 +00:00
Brion Vibber
b464cb7b97 * Fix for load balancing mode, notify if using old settings format 2004-12-06 01:14:53 +00:00
Antoine Musso
ba2afcd9fa Split files and classes in different packages for phpdocumentor. I probably changed some double quotes to single and used function foo () { shema 2004-09-03 23:00:01 +00:00
Antoine Musso
90155b8a97 Changing comments layout preparing for generated documentation with Phpdocumentor 2004-09-02 23:28:24 +00:00
Antoine Musso
3d60242fb5 massive double to single quotes conversion. I have not noticed any bug after a lot of testing 2004-08-22 17:24:50 +00:00
Brion Vibber
1494cd61de Report the database connection failure error message when no server can 
be contacted instead of silently ignoring it and dying when unable to use
'false' as an array index.
 2004-08-08 01:07:56 +00:00
Tim Starling
d326750130 Fixed bug causing infinite recursion on failure to contact a slave. Some other general rearrangements, extra debug info 2004-08-07 03:53:19 +00:00
Tim Starling
0255658424 improvements to error handling 2004-07-24 08:33:37 +00:00
Tim Starling
1773cd1e76 * Introducing bit field for database parameters 
** Database constructor calling sequence, and Database::newFromParams()
** Including flags in the server initialisation structs
** Support for setting appropriate flags from legacy globals in Setup.php
** Moved some defines to Define.php so that they can be used in LocalSettings.php, most importantly the bit field constants

* Changes related to post-parse link colouring
** Turn the link cache back on when using it for updating the links table
** No longer need to call preFill() on page view

* Better synchronisation of slave servers
** Rearranged getConnection()
** System for beginning and committing transactions when multiple connections are open
** wfAbruptExit() commits transactions, wfErrorExit() does not. Various functions changed to use wfErrorAbort()

* Allowed reporting of database errors during deferred updates by moving them above output()
 2004-07-24 07:24:04 +00:00
Tim Starling
3dc5684673 debug output, and proper handling of NULL return from masterPosWait(), which occurs if replication is stopped with SLAVE STOP 2004-07-23 12:37:55 +00:00
Tim Starling
ac549401d4 * Support for table name prefixes throughout the code. No support yet for converting static SQL, which also means no installation. But it has been tested by creating the tables in the ordinary way and then renaming them 
* DB_WRITE now called DB_MASTER, DB_READ now called DB_SLAVE
* Converted to use SQL wrapper functions instead of direct SQL in various places
* Experimental method for preserving the chronological order of events when slave servers are used. Untested.
* Fixes to the new post-parse existence test feature
* Some.. other stuff
 2004-07-18 08:48:43 +00:00
Tim Starling
b96b707efa OOP calling convention for database functions. DBMS abstraction implemented by means of functions instead of global variables, PostgreSQL object converted to a subclass instead of a drop-in replacement. Also the beginnings of a flexible table name feature. 2004-07-10 03:09:26 +00:00
Tim Starling
2ba9d12c88 Load balancer bug fixes 2004-06-22 08:54:26 +00:00
Tim Starling
28bb28f0cc bug fix 2004-06-21 07:49:19 +00:00
Tim Starling
5412316925 fixed error handling (at least partially) 2004-06-18 14:02:43 +00:00
Tim Starling
b5ef8d221b Bringing the load balancer to the main branch. Still doesn't do much. I needed a DB connection cache for my Article.php alterations, which LoadBalancer provides. 2004-06-15 15:00:54 +00:00
Brion Vibber
0332f4c598 Fix for compatibility with short_open_tag = Off 2004-02-18 02:15:00 +00:00
Tim Starling
1231546be7 new object - basic DB load balancer 2004-01-25 13:27:53 +00:00