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  1. Bug #1454255
  2. Comment #3

Comment 3 for bug 1454255

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Roman Podoliaka (rpodolyaka) wrote : Re: Nova scheduler and conductor failed to start on one of the node with db error "DBConnectionError: (OperationalError) (1047, 'Unknown command') None None"

Pavel, we still want nova-* services to survive MySQL outage and continue to work, when it's back online.

Could you please give the next scenario a try?

1) deploy an env
2) turn off mysql (or just block it by the means of iptables)
3) restart nova-scheduler, nova-conductor, etc
4) make sure nova-* services try to connect to the DB and fail
5) turn on mysql again
6) make sure nova-scheduler and nova-conductor operate normally