I’ve got a high-volume system with 24GB ram, a 30GB on disk database, and 2M page views/month. There were some bumps as the site got migrated and updated to the new image format, but last I looked it appeared to be running smoothly according to those familiar with the site.
Earlier today I noticed 25K sidekiq jobs. They got processed pretty quickly, but sidekiq reported a 10Ks latency.
A user reported that they had received 5 summary emails in the space of an hour. Here’s the mail-sent graph:
Here’s grafana stats for the day.
The site was upgraded a couple days back when I installed the prometheus exporter plugin.
There were complaints of multiple summary emails earlier, but I chalked that up to the site being swamped due to the image processing.
Does anyone have an explanation for why a user might receive multiple summary emails in a day?