There were a whole bunch of meta questions asked in Super User over the past few days.

meta questions

However none of these were delivered to my inbox.

my inbox

What's up with that?


I think I've found the issue here, has to do with how we generate, queue and send inbox items overall. It comes down to we were using one inbox item object and in a tight loop sending that to all moderators who a) aren't employees, b) aren't devs and c) didn't post the question.

The issue is that we send almost everything to redis via it's own background fire and forget task to maximize throughput between a particular web server and redis. Unfortunately that means that there are some extra considerations when re-using objects. In this case, we set the AccountId to determine which inbox that item goes to in that loop, and since that's not synchronous, there was a chance of some mods getting dupe messages and some getting none.

This possibility has been corrected, but I can't confirm (easily) that it is the exact cause due to how we'd have to reproduce this race. Please comment if you still see this issue after the next build tonight, as we obviously need to dig deeper for other reasons this is happening.

  • I just had this on Skeptics, I got the indicator that I had a new inbox item, but the new meta post isn't in my inbox. Oct 29 '11 at 12:59
  • Nick, I think it's working now, just got a notification of a meta post in my inbox. Oct 30 '11 at 14:07
  • I'm still not getting them all the time. This post wasn't delivered to my inbox. Nor was the other recent meta post.
    – nhinkle
    Oct 31 '11 at 17:42
  • So this morning there was a new meta post, and my inbox notification count went up, but a previous notification I had already dismissed was marked as unread and the meta post wasn't there. Still broken.
    – nhinkle
    Nov 1 '11 at 16:42
  • yeah @Nick as nhinkle mentions, I was not notified of Will awarding bounties remove privileges Nov 2 '11 at 17:12
  • @Nick can you please give us an update on the status of this? You asked us to let you know if the problem keeps happening (which as of an hour ago, it is)...
    – nhinkle
    Nov 3 '11 at 22:14
  • @nhinkle - We're still investigating...we have another possible fix going out in the next build, we'll compare inboxes in the morning to see if it looks any better. Apologies for the delay...inboxes are fairly complex with a lot of overlapping pieces in motion at all times. Nov 3 '11 at 22:21
  • Thanks for the update @Nick.
    – nhinkle
    Nov 3 '11 at 22:29
  • Well FWIW, I'm still not getting inbox notifications for meta posts, at all. :/
    – nhinkle
    Nov 6 '11 at 23:50
  • I'm getting this problem again for Skeptics, but not for Biology (see meta.stackexchange.com/questions/119721/…) Jan 20 '12 at 14:50

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