Diagnosing sidekiq issues

• Visit: https://www.powr.io/sidekiq
• Are there busy workers that have been taking minutes to hours to run? (Generally, only admin workers should take this long)
  • STOP the workers in the /sidekiq interface.
  • If DB is still slow, you may need to Reset DB Connections (see below)
  • Figure out what code is causing these to take too long
• Is enqueued list > 10,000?
  • Are busy workers slow? See previous bullet.
  • Is the same task duplicated many times?
    • Eg: heroku ps:stop web:32 -a powr in this case.
    • You can find and delete the specific tasks via console: https://www.getoutline.com/doc/deleting-stuff-in-sidekiq-iK7Uqk9Xa7
    • Is code allowing the same task to get called many times? Fix it.
    • Is a user spamming us? TODO: HOW TO BLOCK SPAMMING USERS
  • Are workers not running at all? Visit heroku and see how many instances are running. Increase if necessary (usually up to 10 workers).