Symptoms:
During NSX V to T migration, the migration coordinator fails and reports the error below :
Config migration failed [Reason: HTTP Error: 409: Specified syslog exporter 'v-migrated1' already exists for url http://localhost:7441/api/v1/node/services/syslog/exporters
This can happen if there are existing syslog configs on the NSX-T Manager which prevented the migration tool from running further. This can be possible if the migration was cancelled without rollback in the past, which can leave syslog server config in the process.
Run the command below to see if there is any existing remote logging config :
get logging-servers
Run the following command to clear any logging servers config and restart the migration tool again :
clear logging-servers