Posts em rápida sucessão não enviam todos os e-mails

Suporte
1

This forum must approve all posts. As a result some posts are published in rapid succession: when a moderator logs in they approve the posts quickly after each other.

Most categories are set to “watching” for all users and almost no users log in, the forum is relying very heavily on email notifications.

The problem is that whenever posts are published in rapid succession (less than 1.5 minutes apart), not all emails are being sent. This query shows the count of all sent emails (entries in email_logs per topic). The amount of users that should be getting an email is around 2250. When people have logged in recently (about 1%) they don’t get an email, so the number varies a bit but should be between 2200 and 2250.

As you can see in the first three lines, posts published quickly after each other do not have the full amount of emails.

What could be going on here?

Oh, max_emails_per_day_per_user is set to something really high.

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image788×347 72.7 KB

columns: topic, date/time, category, # emails sent

2 curtidas
2

Nos últimos meses tivemos alguns novos insights:

  • o problema não estava nos e-mails em si, mas na geração das notificações subjacentes
  • gerar muitas notificações em rápida sucessão leva o Sidekiq a reiniciar com Sidekiq está consumindo muita memória
  • o reinício do Sidekiq leva ao lote atual de notificações que está sendo gerado para uma postagem ser abortado, resultando em um conjunto incompleto de notificações.

EDIT aumentar UNICORN_SIDEKIQ_MAX_RSS impediu que esse problema ocorresse novamente nos últimos 9 dias.

2 curtidas
3

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