Timeout when exporting large tables (+700k rows)

[pabdelhay]

I have a very large table, with more then 700.000 rows. When I select all the rows on my changelist page, and submit the action to export with celery, it gives a Bad Gateway server error (502) when going to the Export job page. The problem is on this step after submiting the action on the changelist page and not on the export itself.
When I try with few rows it works fine.

My guess is the size of the request to the Export job page, or maybe the size of the field queryset, which stores all the PKs from the queryset to export.

Have you ever experience that? Any solution?

[lautarodapin-magoya]

currently trying to solve the same problem, i guess the best option is to save filters and selections instead of all the ids