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1. Schedule 10 minutes of downtime

2. Disable our hirefire autoscaling to keep it from starting workers back up again: turn off Turn OFF the switch next to “MANAGER” DYNO MANAGER at https://manager.hirefire.io/managers/2533bb0e-4eda-4f45-b8ef-3235c1e302df

   Set worker dyno count to zero at https://dashboard.heroku.com/apps/scihist-digicoll-production/resources GUI or command line

3. Make a note of how many workers you have with heroku ps worker, then

heroku ps

to prevent it from turning workers back on.

4. heroku ps:scale worker=0

   Run the following--app scihist-digicoll-production
heroku maintenance:on --app scihist-digicoll-production
heroku pg:maintenance:run --force --app scihist-digicoll-production
heroku pg:wait --app scihist-digicoll-production
heroku

   maintenance:off

   ps:scale worker=2 --app scihist-digicoll-production
   

   Restore Heroku workers:

   heroku

   ps:scale worker=2

   maintenance:off --app scihist-digicoll-production

5. Turn the Hirefire manager switch back on ON.