Last modified: 2014-10-15 18:01:51 UTC

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Bug 71377 - Flow: Fatal exception of type MWException from AbstractQuery.php: Did not load root post <UUID>, viewing boards and topics
Flow: Fatal exception of type MWException from AbstractQuery.php: Did not loa...
Status: PATCH_TO_REVIEW
Product: MediaWiki extensions
Classification: Unclassified
Flow (Other open bugs)
unspecified
All All
: High normal (vote)
: ---
Assigned To: Nobody - You can work on this!
https://fr.wikipedia.org/wiki/Wikip%C...
:
Depends on:
Blocks:
  Show dependency tree / graph
 
Reported: 2014-09-27 01:14 UTC by Quiddity
Modified: 2014-10-15 18:01 UTC (History)
8 users (show)

See Also:
Web browser: ---
Mobile Platform: ---
Assignee Huggle Beta Tester: ---

Attachments
Add an attachment (proposed patch, testcase, etc.)

Description Quiddity 2014-09-27 01:14:14 UTC 
Currently https://fr.wikipedia.org/wiki/Wikip%C3%A9dia:Forum_des_nouveaux/Flow
leads to the message:
 Internal error
 [1e3e5c74] 2014-09-27 01:10:46: Fatal exception of type MWException

Webconsole says:
 "[FLOW] " "Will not instantiate: no $container.length" Arguments { 0: Object, 2 more… }

----
Possibly separate, or the same:

Clicking the history tab gives:
 [0e33f8fa] 2014-09-27 01:12:45: Fatal exception of type MWException

but no extra details in webconsole
Comment 1 Quiddity 2014-09-27 01:15:35 UTC 
on trello at https://trello.com/c/uUX8GriE/
Comment 3 Quiddity 2014-09-27 03:00:07 UTC 
The pages have been temporarily fixed by Ebernhardson, so am lowering severity. He is unsure what caused it, but purged the problem manually. See https://trello.com/c/AoDOJxUq/ for making that purge script available via onwiki action.
Comment 4 Matthias Mullie 2014-09-28 12:45:21 UTC 
Stack trace:

2014-09-28 11:40:09 mw1037 mediawikiwiki: [3476013e] /wiki/Talk:HHVM/About   Exception from line 287 of /srv/mediawiki/php-1.25wmf1/extensions/Flow/includes/Formatter/AbstractQuery.php: Did not load root post S2x174x44fnr5xx7
#0 /srv/mediawiki/php-1.25wmf1/extensions/Flow/includes/Formatter/AbstractQuery.php(210): Flow\Formatter\AbstractQuery->getRootPost(Object(Flow\Model\PostRevision))
#1 /srv/mediawiki/php-1.25wmf1/extensions/Flow/includes/Formatter/TopicListQuery.php(68): Flow\Formatter\AbstractQuery->buildResult(Object(Flow\Model\PostRevision), NULL, Object(Flow\Formatter\TopicRow))
#2 /srv/mediawiki/php-1.25wmf1/extensions/Flow/includes/Block/TopicList.php(196): Flow\Formatter\TopicListQuery->getResults(Array)
#3 /srv/mediawiki/php-1.25wmf1/extensions/Flow/includes/View.php(133): Flow\Block\TopicListBlock->renderAPI(Array)
#4 /srv/mediawiki/php-1.25wmf1/extensions/Flow/includes/Content/BoardContent.php(197): Flow\View->show(Object(Flow\WorkflowLoader), 'view')
#5 /srv/mediawiki/php-1.25wmf1/includes/page/WikiPage.php(2145): Flow\Content\BoardContent->getParserOutput(Object(Title), NULL, Object(ParserOptions))
#6 /srv/mediawiki/php-1.25wmf1/extensions/TemplateData/TemplateData.hooks.php(71): WikiPage->prepareContentForEdit(Object(Flow\Content\BoardContent), NULL, Object(User), 'application/jso...')
#7 [internal function]: TemplateDataHooks::onPageContentSave(Object(WikiPage), Object(User), Object(Flow\Content\BoardContent), '/* Taken over b...', 0, NULL, NULL, 25, Object(Status))
#8 /srv/mediawiki/php-1.25wmf1/includes/Hooks.php(206): call_user_func_array('TemplateDataHoo...', Array)
#9 /srv/mediawiki/php-1.25wmf1/includes/GlobalFunctions.php(3991): Hooks::run('PageContentSave', Array, NULL)
#10 /srv/mediawiki/php-1.25wmf1/includes/page/WikiPage.php(1780): wfRunHooks('PageContentSave', Array)
#11 /srv/mediawiki/php-1.25wmf1/extensions/Flow/includes/TalkpageManager.php(99): WikiPage->doEditContent(Object(Flow\Content\BoardContent), '/* Taken over b...', 24, false, Object(User))
#12 /srv/mediawiki/php-1.25wmf1/extensions/Flow/includes/Data/Listener/OccupationListener.php(58): Flow\TalkpageManager->ensureFlowRevision(Object(Article), Object(Flow\Model\Workflow))
#13 /srv/mediawiki/php-1.25wmf1/extensions/Flow/includes/Data/Listener/OccupationListener.php(45): Flow\Data\Listener\OccupationListener->ensureOccupation(Object(Flow\Model\Workflow))
#14 /srv/mediawiki/php-1.25wmf1/extensions/Flow/includes/Data/ObjectLocator.php(308): Flow\Data\Listener\OccupationListener->onAfterLoad(Object(Flow\Model\Workflow), Array)
#15 /srv/mediawiki/php-1.25wmf1/extensions/Flow/includes/Data/ObjectManager.php(127): Flow\Data\ObjectLocator->load(Array)
#16 /srv/mediawiki/php-1.25wmf1/extensions/Flow/includes/Data/ObjectLocator.php(93): Flow\Data\ObjectManager->load(Array)
#17 /srv/mediawiki/php-1.25wmf1/extensions/Flow/includes/Data/ObjectLocator.php(48): Flow\Data\ObjectLocator->findMulti(Array, Array)
#18 /srv/mediawiki/php-1.25wmf1/extensions/Flow/includes/WorkflowLoaderFactory.php(98): Flow\Data\ObjectLocator->find(Array)
#19 /srv/mediawiki/php-1.25wmf1/extensions/Flow/includes/WorkflowLoaderFactory.php(74): Flow\WorkflowLoaderFactory->loadWorkflow(Object(Title))
#20 /srv/mediawiki/php-1.25wmf1/extensions/Flow/includes/Actions/Action.php(75): Flow\WorkflowLoaderFactory->createWorkflowLoader(Object(Title), NULL)
#21 /srv/mediawiki/php-1.25wmf1/extensions/Flow/includes/Actions/Action.php(33): Flow\Actions\FlowAction->showForAction('view')
#22 /srv/mediawiki/php-1.25wmf1/includes/MediaWiki.php(414): Flow\Actions\FlowAction->show()
#23 /srv/mediawiki/php-1.25wmf1/includes/MediaWiki.php(282): MediaWiki->performAction(Object(Article), Object(Title))
#24 /srv/mediawiki/php-1.25wmf1/includes/MediaWiki.php(584): MediaWiki->performRequest()
#25 /srv/mediawiki/php-1.25wmf1/includes/MediaWiki.php(435): MediaWiki->main()
#26 /srv/mediawiki/php-1.25wmf1/index.php(46): MediaWiki->run()
#27 /srv/mediawiki/w/index.php(3): require('/srv/mediawiki/...')
#28 {main}
Comment 5 spage 2014-09-28 23:31:31 UTC 
Also happening on mw:Talk:Search

exception.log backtrace (below, key is [6ba6245c]) is similar for  #0-#3, then diverges. I think I'm viewing a different way.

If I try to view the post from "Did not load root post <UUID>" from the exception, https://www.mediawiki.org/wiki/Topic:S1b3m6774w8qpf8t , I get a worse exception with no page chrome at all, just
[7db57483] 2014-09-28 22:13:56: Fatal exception of type MWException.  That log below too.

Purging the problem post with ErikB's script didn't help, but purging Talk:Search fixed both the topic and Flow board.


Exception.log contents for visiting https://www.mediawiki.org/wiki/Talk:Search :

2014-09-28 22:03:02 mw1018 mediawikiwiki: [1beea5d6] /wiki/Talk:Search   Exception from line 287 of /srv/mediawiki/php-1.25wmf1/extensions/Flow/includes/Formatter/AbstractQuery.php: Did not load root post S1b3m6774w8qpf8t
#0 /srv/mediawiki/php-1.25wmf1/extensions/Flow/includes/Formatter/AbstractQuery.php(210): Flow\Formatter\AbstractQuery->getRootPost()
#1 /srv/mediawiki/php-1.25wmf1/extensions/Flow/includes/Formatter/TopicListQuery.php(68): Flow\Formatter\AbstractQuery->buildResult()
#2 /srv/mediawiki/php-1.25wmf1/extensions/Flow/includes/Block/TopicList.php(196): Flow\Formatter\TopicListQuery->getResults()
#3 /srv/mediawiki/php-1.25wmf1/extensions/Flow/includes/View.php(133): Flow\Block\TopicListBlock->renderAPI()
#4 /srv/mediawiki/php-1.25wmf1/extensions/Flow/includes/Actions/Action.php(87): Flow\View->show()
#5 /srv/mediawiki/php-1.25wmf1/extensions/Flow/includes/Actions/Action.php(33): Flow\Actions\FlowAction->showForAction()
#6 /srv/mediawiki/php-1.25wmf1/includes/MediaWiki.php(414): Flow\Actions\FlowAction->show()
#7 /srv/mediawiki/php-1.25wmf1/includes/MediaWiki.php(282): MediaWiki->performAction()
#8 /srv/mediawiki/php-1.25wmf1/includes/MediaWiki.php(584): MediaWiki->performRequest()
#9 /srv/mediawiki/php-1.25wmf1/includes/MediaWiki.php(435): MediaWiki->main()
#10 /srv/mediawiki/php-1.25wmf1/index.php(46): MediaWiki->run()
#11 /srv/mediawiki/w/index.php(3): include()
d#12 {main}

Exception log contents from viewing https://www.mediawiki.org/wiki/Topic:S1b3m6774w8qpf8t

2014-09-28 22:13:56 mw1021 mediawikiwiki: [7db57483] /wiki/Topic:S1b3m6774w8qpf8t   Exception from line 287 of /srv/mediawiki/php-1.25wmf1/extensions/Flow/includes/Formatter/AbstractQuery.php: Did not load root post S1b3m6774w8qpf8t
#0 /srv/mediawiki/php-1.25wmf1/extensions/Flow/includes/Formatter/AbstractQuery.php(210): Flow\Formatter\AbstractQuery->getRootPost()
#1 /srv/mediawiki/php-1.25wmf1/extensions/Flow/includes/Formatter/TopicListQuery.php(68): Flow\Formatter\AbstractQuery->buildResult()
#2 /srv/mediawiki/php-1.25wmf1/extensions/Flow/includes/Block/Topic.php(582): Flow\Formatter\TopicListQuery->getResults()
#3 /srv/mediawiki/php-1.25wmf1/extensions/Flow/includes/Block/Topic.php(482): Flow\Block\TopicBlock->renderTopicAPI()
#4 /srv/mediawiki/php-1.25wmf1/extensions/Flow/includes/View.php(133): Flow\Block\TopicBlock->renderAPI()
#5 /srv/mediawiki/php-1.25wmf1/extensions/Flow/includes/Actions/Action.php(87): Flow\View->show()
#6 /srv/mediawiki/php-1.25wmf1/extensions/Flow/includes/Actions/Action.php(33): Flow\Actions\FlowAction->showForAction()
#7 /srv/mediawiki/php-1.25wmf1/includes/MediaWiki.php(414): Flow\Actions\FlowAction->show()
#8 /srv/mediawiki/php-1.25wmf1/includes/MediaWiki.php(282): MediaWiki->performAction()
#9 /srv/mediawiki/php-1.25wmf1/includes/MediaWiki.php(584): MediaWiki->performRequest()
#10 /srv/mediawiki/php-1.25wmf1/includes/MediaWiki.php(435): MediaWiki->main()
#11 /srv/mediawiki/php-1.25wmf1/index.php(46): MediaWiki->run()
#12 /srv/mediawiki/w/index.php(3): include()
#13 {main}
Comment 6 Gerrit Notification Bot 2014-09-29 19:43:44 UTC 
Change 163589 had a related patch set uploaded by Spage:
piecemeal loading instead of fail in getRootPost

https://gerrit.wikimedia.org/r/163589
Comment 7 Nik Everett 2014-10-02 16:46:43 UTC 
Getting this when trying to view a post on [[mw:Talk:Search]].  This is the link I got in the messages: https://www.mediawiki.org/w/index.php?title=Topic:S1b3m6774w8qpf8t&fromnotif=1#flow-post-s3ermfxsleu9goor

and it blows up with this error.
Comment 8 Gerrit Notification Bot 2014-10-02 17:33:40 UTC 
Change 164311 had a related patch set uploaded by Matthias Mullie:
Refactor BufferedCache

https://gerrit.wikimedia.org/r/164311
Comment 9 Matthias Mullie 2014-10-02 17:35:03 UTC 
Nik: I purged the corrupted cache & page is accessible again.

Hopefully, the above patches should fix this issue.
Comment 10 Gerrit Notification Bot 2014-10-08 02:28:10 UTC 
Change 164311 merged by jenkins-bot:
Refactor BufferedCache

https://gerrit.wikimedia.org/r/164311
Comment 11 Gerrit Notification Bot 2014-10-10 18:19:27 UTC 
Change 166072 had a related patch set uploaded by Spage:
Bug: UUID class accepts uppercase input

https://gerrit.wikimedia.org/r/166072
Comment 12 Gerrit Notification Bot 2014-10-15 18:01:51 UTC 
Change 166072 merged by jenkins-bot:
Bug: UUID class accepts uppercase input

https://gerrit.wikimedia.org/r/166072
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