(keystone-upgrade)# keystone-manage db_sync --contract
2017-01-31 13:57:52.164 322 INFO migrate.versioning.api [-] 4 -> 5...
2017-01-31 13:57:52.379 322 INFO migrate.versioning.api [-] done
2017-01-31 13:57:52.379 322 INFO migrate.versioning.api [-] 5 -> 6...
2017-01-31 13:57:52.969 322 INFO migrate.versioning.api [-] done
2017-01-31 13:57:52.969 322 INFO migrate.versioning.api [-] 6 -> 7...
2017-01-31 13:57:53.462 322 INFO migrate.versioning.api [-] done
2017-01-31 13:57:53.462 322 INFO migrate.versioning.api [-] 7 -> 8...
2017-01-31 13:57:53.793 322 INFO migrate.versioning.api [-] done
2017-01-31 13:57:53.793 322 INFO migrate.versioning.api [-] 8 -> 9...
2017-01-31 13:57:53.957 322 INFO migrate.versioning.api [-] done
2017-01-31 13:57:53.957 322 INFO migrate.versioning.api [-] 9 -> 10...
2017-01-31 13:57:54.111 322 INFO migrate.versioning.api [-] done
2017-01-31 13:57:54.112 322 INFO migrate.versioning.api [-] 10 -> 11...
2017-01-31 13:57:54.853 322 INFO migrate.versioning.api [-] done
2017-01-31 13:57:54.853 322 INFO migrate.versioning.api [-] 11 -> 12...
2017-01-31 13:57:56.727 322 INFO migrate.versioning.api [-] done
2017-01-31 13:57:56.728 322 INFO migrate.versioning.api [-] 12 -> 13...
2017-01-31 13:57:59.529 322 INFO migrate.versioning.api [-] done