"Fatal exception of type MWException" on many Wikivoyage pages
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Nearly all page requests on Wikivoyage are currently failing with "Fatal exception of type MWException". See for example https://en.wikivoyage.org/wiki/Special:RecentChanges. This has been ongoing for at least 10-15 minutes.

Version: wmf-deployment
Severity: critical

bzimport set Reference to bz59221.
Wrh2 created this task.Via LegacyJan 2 2014, 6:53 PM
bzimport added a comment.Via ConduitJan 2 2014, 6:55 PM

7rt1j wrote:

Ditto at Wikimedia Commons: "[8672d3f8] 2014-01-02 18:54:37: Fatal exception of type MWException".

Was reported at [[Wikipedia:Village pump (technical)]] at 18:40.

bzimport added a comment.Via ConduitJan 2 2014, 7:28 PM

7rt1j wrote:

To clarify, I got the error above accessing the Main Page on Commons. The Main Page on Wikivoyage works for me, but Special:RecentChanges is broken on both sites. The API still works fine; it's just normal web access that is broken.

Looking at recent changes on Commons via the API (https://commons.wikimedia.org/w/api.php?action=query&generator=recentchanges&prop=info|revisions&rvprop=user|comment), I see some normal users (i.e. not bots) are successfully making edits, including some IP address users.

In case this is a geographic thing, I'll note I'm trying to access Commons from the UK.

Wrh2 added a comment.Via ConduitJan 2 2014, 7:29 PM

I've found that reloading a page enough times on Wikivoyage will eventually result in the page loading correctly, but even the main page is usually failing.

bzimport added a comment.Via ConduitJan 2 2014, 8:31 PM

7rt1j wrote:

Both Commons and Wikivoyage are now working for me. I reloaded the page half a dozen times on each, but no more errors.

I've been away for the last hour, but comments at [[Wikipedia:Village pump (technical)Commons down]] seem to indicate the issue cleared up a few minutes after my previous comment.

Wrh2 added a comment.Via ConduitJan 2 2014, 8:32 PM

https://en.wikivoyage.org/wiki/Wikivoyage:Travellers%27_pub#Fatal_exception_of_type_MWException seems to indicate that this was a localization caching issue that has now been resolved. Wikivoyage seems to be back to normal now.

Aklapper added a comment.Via ConduitJan 2 2014, 8:50 PM

Thanks for reporting this.
https://wikitech.wikimedia.org/wiki/Server_Admin_Log mentions
January 2

19:25 Reedy: stuff has been broken

and Reedy and greg-g (on Freenode IRC) are aware of it and investigating.

Aklapper added a comment.Via ConduitJan 2 2014, 8:54 PM

This should hopefully be fixed now:

<Reedy> exception.log is also quiet again (to confirm it's fixed)
See https://ganglia.wikimedia.org/latest/graph.php?r=day&z=xlarge&title=MediaWiki+errors&vl=errors+%2F+sec&x=0.5&n=&hreg[]=vanadium.eqiad.wmnet&mreg[]=fatal|exception&gtype=stack&glegend=show&aggregate=1&embed=1

Closing soon if there's no new issues.

tomasz added a comment.Via ConduitJan 2 2014, 9:27 PM

This has been fixed ages ago (around 19:29 UTC).

TTO added a comment.Via ConduitJan 3 2014, 5:01 AM
  • Bug 59220 has been marked as a duplicate of this bug. ***

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