https://bugzilla.wikimedia.org/show_bug.cgi?id=70223
Bug ID: 70223
Summary: 'Unknown error' in
LoadBalancer->reportConnectionError() hides a real
database problem
Product: MediaWiki
Version: 1.24-git
Hardware: All
OS: All
Status: NEW
Severity: major
Priority: Unprioritized
Component: Database
Assignee: [email protected]
Reporter: [email protected]
Web browser: ---
Mobile Platform: ---
On a freshly installed PostgreSQL wiki I had a problem with the database
connection:
## Database settings
$wgDBtype = "postgres";
$wgDBserver = "";
$wgDBname = "clitest01";
$wgDBuser = "wikiuser";
$wgDBpassword = "*passwd*";
Installation went fine but those settings didn't work for some reason (this is
another bug).
Wiki reports only:
Sorry! This site is experiencing technical difficulties.
Try waiting a few minutes and reloading.
(Cannot contact the database server: No database connection)
Backtrace:
#0 w/includes/db/LoadBalancer.php(752):
DatabaseBase->reportConnectionError('Unknown error (...')
#1 w/includes/db/LoadBalancer.php(475): LoadBalancer->reportConnectionError()
#2 w/includes/GlobalFunctions.php(3618): LoadBalancer->getConnection(-1, Array,
false)
#3 w/includes/page/WikiPage.php(379): wfGetDB(-1)
#4 w/includes/page/WikiPage.php(462): WikiPage->loadPageData()
#5 w/includes/page/WikiPage.php(515): WikiPage->exists()
#6 w/includes/page/WikiPage.php(222): WikiPage->getContentModel()
#7 w/includes/page/WikiPage.php(208): WikiPage->getContentHandler()
#8 w/includes/actions/Action.php(96): WikiPage->getActionOverrides()
#9 w/includes/actions/Action.php(149): Action::factory('view',
Object(WikiPage), Object(RequestContext))
#10 w/includes/MediaWiki.php(164):
Action::getActionName(Object(RequestContext))
#11 w/includes/MediaWiki.php(533): MediaWiki->getAction()
#12 w/includes/MediaWiki.php(460): MediaWiki->main()
#13 w/index.php(46): MediaWiki->run()
#14 {main}
After commenting out the "ugly hack" in LoadBalancer::reallyOpenConnection() I
am getting a real cause for the problem:
(Cannot contact the database server: pg_connect(): Unable to connect to
PostgreSQL server: could not connect to server: Permission denied Is the server
running locally and accepting connections on Unix domain socket
"/run/postgresql/.s.PGSQL.5432"?)
Backtrace:
#0 w/includes/db/Database.php(822): DatabasePostgres->open('', 'wikiuser',
'minitest', 'clitest01')
#1 w/includes/db/Database.php(919): DatabaseBase->__construct(Array)
#2 w/includes/db/LoadBalancer.php(717): DatabaseBase::factory('postgres',
Array)
#3 w/includes/db/LoadBalancer.php(591):
LoadBalancer->reallyOpenConnection(Array, false)
#4 w/includes/db/LoadBalancer.php(471): LoadBalancer->openConnection(0, false)
#5 w/includes/GlobalFunctions.php(3618): LoadBalancer->getConnection(-1, Array,
false)
#6 w/includes/page/WikiPage.php(379): wfGetDB(-1)
#7 w/includes/page/WikiPage.php(462): WikiPage->loadPageData()
#8 w/includes/page/WikiPage.php(515): WikiPage->exists()
#9 w/includes/page/WikiPage.php(222): WikiPage->getContentModel()
#10 w/includes/page/WikiPage.php(208): WikiPage->getContentHandler()
#11 w/includes/actions/Action.php(96): WikiPage->getActionOverrides()
#12 w/includes/actions/Action.php(149): Action::factory('view',
Object(WikiPage), Object(RequestContext))
#13 w/includes/MediaWiki.php(164):
Action::getActionName(Object(RequestContext))
#14 w/includes/MediaWiki.php(533): MediaWiki->getAction()
#15 w/includes/MediaWiki.php(460): MediaWiki->main()
#16 w/index.php(46): MediaWiki->run()
#17 {main}
... which is some pg-specific installer problem we are working on it now.
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