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Not receiving VRT notification emails
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Description

I have not received any VRT emails in the past two days, despite multiple tickets coming in that should have triggered email notifications (last email I have is from Feb 16th at 1:13 PM Eastern). I have anecdotal reports of the same from a couple other users in the VRT IRC channel. Znuny itself seems to be receiving tickets as expected, it's just email notifications that aren't working.

Event Timeline

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Confirming that this has been identified by myself and several other users of oversight-en and checkuser-en queues (at minimum). Concur with the timeline identified above. There is currently an enwiki functionaries thread about this.

We think this is a bigger issue, seem like no user can get agent's reply from VRT (checked at info-zh@wikimedia.org)

Did a quick test and seems sender could not receive auto-reply and agent-responded email. Not sure if is relevant to notification mail.

I noticed some db errors in the logs, after manually checking the db config was correct, I have restarted otrs-daemon.service and things look healthy again. Can anyone confirm if the issues is fixed?

I do see the following error in the log but this looks like it can wait for someone more knowledgable about otrs/zunny then i to check into

Feb 20 15:01:28 otrs1001 OTRS-CGI-10[21026]: [Error][Kernel::System::Web::InterfaceAgent::Run][Line:1172]: PerformanceLog file '/opt/otrs/var/log/Performance.log' is too large, you need to reset it in PerformanceLog page!

@Dzahn This seems to be related to https://sal.toolforge.org/log/scLeA38B1jz_IcWuCEVv

@jbond Thanks for the quick fix. I confirm emails started flowing back to my mailbox again :).

Confirmed, just got a wave of emails.

I can also confirm that a new waive of emails just started. Thanks for looking into this, @jbond .

jbond claimed this task.

awesome will close but please re-open if you see other issues

I do see the following error in the log but this looks like it can wait for someone more knowledgable about otrs/zunny then i to check into

Feb 20 15:01:28 otrs1001 OTRS-CGI-10[21026]: [Error][Kernel::System::Web::InterfaceAgent::Run][Line:1172]: PerformanceLog file '/opt/otrs/var/log/Performance.log' is too large, you need to reset it in PerformanceLog page!

I fixed that one. I 've disabled the performance log. Usage of it never panned out anyway.

@jbond thanks for dealing with this!

Thank you @jbond ! We did talk about the log entries on Fridays but as you say the DB config looked correct.

There was a short outage of OTRS on Feb 16th. The config change I deployed was not the original cause but to fix that. Will share more details next week.

I gave people on #wikmedia-vrt the summary of the incident report basically. Since some were wondering why they got mails at once etc. There is a doc being worked on. Once that is ready we should put it on wikitech.