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When you get an email from Heroku that reads…

Your database xxx standard-0 (xxx on scihist-digicoll-production) must undergo maintenance

…. here’s how to do the maintenance at a time of your choosing:

  1. Schedule 10 minutes of downtime

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

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

  4. Run the following

    1. 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 --app scihist-digicoll-production

  5. Restore Heroku worker dyno type and count

  6. Turn the Hirefire manager back on.

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