On 15/09/16 10:14, Andrew Smith wrote:
Thanks Brian. Your suggestion to turn on the MediaWiki debug log helped
me track down the problem.
On 15/09/16 07:08, Brian Wolff wrote:
locks). So maybe something is wrong on the php side. Thus I'd also
check the php error log, and maybe try enabling the MediaWiki debug
log and check that.
It was a bizarre one. wgSMTP was misconfigured and what happened was:
* Someone would try to register
* Mediawiki would start a transaction to do whatever in SQL, perhaps
record that an account is being created
* Mediawiki would try to send an email, which I could see from a single
log line with PEAR in it (the last log line for that request).
* The email would never get sent and the request to send the email never
timed out (go figure).
* The transaction started way back when was never committed, and was
left open forever.
* From that point on any other requests to modify user table timed out.
Why would one send an email in the middle of an SQL transaction? That's
a disaster waiting to happen.
Is there a place where I should report this bug? I would like to help
get this fixed, not just complain on my blog :)
It really sucks that I wasted so much time and patience dealing with
this, but I'm glad I got it sorted out in the end. Thanks for the help
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