#35151: makemigrations hangs forever on complex apps/models
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Reporter: Seth Syberg | Owner: nobody
Type: Bug | Status: closed
Component: Migrations | Version: 5.0
Severity: Normal | Resolution: needsinfo
Keywords: migrations hang | Triage Stage: Unreviewed
Has patch: 0 | Needs documentation: 0
Needs tests: 0 | Patch needs improvement: 0
Easy pickings: 0 | UI/UX: 0
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Comment (by Seth Syberg):
FWIW I was able to unblock myself here, but something still smells very
odd to me, I'll add some details for posterity/anyone who ends up here.
Maybe this is better suited as a feature request to (1) better handle
custom user models and (2) make debug output more helpful.
As I googled around about this I found lots of info about custom user
models/auth causing issues (including this now 8 year old open ticket:
https://code.djangoproject.com/ticket/25313) so I had a hunch it was
related to this. What finally got me over the hump though was killing the
hung makemigrations (ctrl-c) and attempting to rerun makemigrations gave a
little more information (on the 2nd run it oddly did not hang but errored
with a circular dependency error). This resulted in a flurry changes and
moving add fields around and deleting some other field references that I
was getting errors on and then running makemigrations again, and
eventually I did end up in a stable state. I went from 200+ migration
files across 7 apps to about 12 migration files total and spinning up now
is much much faster.
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Ticket URL: <https://code.djangoproject.com/ticket/35151#comment:5>
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