Hey folks!

There's been a report of queries long enough to cause a timeout in datagrepper:
https://github.com/fedora-infra/datagrepper/issues/467
I don't think those queries should take so much time, and I'd like to debug this performance issue, possibly try a couple new indexes on the tables, etc. However, I can't reproduce the issue on staging, probably because the datanommer database there is much smaller.
So I was wondering what is the best course of action. I see the following options:

 1. Sync the prod DB to staging. This looks like an obvious first choice, but the messages in the staging DB actually come from the staging environment and are used by other contributors to check that their service is behaving properly on staging. Also, the topic prefix of the messages is different on staging and on prod, so syncing the DB with prod messages and then adding staging ones may cause a mess.

2. Having a second datanommer DB in prod, and syncing them. The problem here is of course the disk space required. I don't know if that's even possible with the hardware we have.

3. Something else?

What do you think?
Thanks!

Aurélien