#24670: Django migrations are not scaling well with number of operations in
migration
-------------------------------------+-------------------------------------
     Reporter:  kurevin              |                    Owner:  nobody
         Type:                       |                   Status:  new
  Cleanup/optimization               |
    Component:  Migrations           |                  Version:  master
     Severity:  Normal               |               Resolution:
     Keywords:  migrations           |             Triage Stage:
  optimization                       |  Unreviewed
    Has patch:  0                    |      Needs documentation:  0
  Needs tests:  0                    |  Patch needs improvement:  0
Easy pickings:  0                    |                    UI/UX:  0
-------------------------------------+-------------------------------------

Comment (by MarkusH):

 Hi kurevin, according to the trace you gave above this looks like #24591
 which is about to be committet to master and in a slightly modified form
 to stable/1.8.x.

 Regarding the backports to 1.7: there are two reasons those changes are
 not being backported:
 1. in 1.8 we now cache the project state across migrations as much as
 possible and due to API changes many patches are not easy to be backported
 2. 1.7 only receives security and data loss related fixes.

--
Ticket URL: <https://code.djangoproject.com/ticket/24670#comment:3>
Django <https://code.djangoproject.com/>
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