2+2=3Free!Timeouts?!MissingtestsMissingalarmsToomanyretriesToo manydependenciesN+1MissingmetricsHumanErrNetworkscan fail?Scaling?EverchangingsvccontractsTheMonolithAvailabilitywasn't apriorityAlarmfatigueAWSisdownNoRetriesNoCM/premortem2+2=3Free!Timeouts?!MissingtestsMissingalarmsToomanyretriesToo manydependenciesN+1MissingmetricsHumanErrNetworkscan fail?Scaling?EverchangingsvccontractsTheMonolithAvailabilitywasn't apriorityAlarmfatigueAWSisdownNoRetriesNoCM/premortem

Operational Excellence - Call List

(Print) Use this randomly generated list as your call list when playing the game. There is no need to say the BINGO column name. Place some kind of mark (like an X, a checkmark, a dot, tally mark, etc) on each cell as you announce it, to keep track. You can also cut out each item, place them in a bag and pull words from the bag.


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  1. 2+2=3
  2. Free!
  3. Timeouts?!
  4. Missing tests
  5. Missing alarms
  6. Too many retries
  7. Too many dependencies
  8. N+1
  9. Missing metrics
  10. Human Err
  11. Networks can fail?
  12. Scaling?
  13. Ever changing svc contracts
  14. The Monolith
  15. Availability wasn't a priority
  16. Alarm fatigue
  17. AWS is down
  18. No Retries
  19. No CM/premortem