Scaling?TheMonolithHumanErrNetworkscan fail?ToomanyretriesN+1Too manydependenciesMissingtestsNoCM/premortemMissingmetricsAvailabilitywasn't apriorityAlarmfatigueTimeouts?!Free!1+1=3EverchangingsvccontractsNoRetriesMissingalarmsAWSisdownScaling?TheMonolithHumanErrNetworkscan fail?ToomanyretriesN+1Too manydependenciesMissingtestsNoCM/premortemMissingmetricsAvailabilitywasn't apriorityAlarmfatigueTimeouts?!Free!1+1=3EverchangingsvccontractsNoRetriesMissingalarmsAWSisdown

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