According to this, the target host cannot be used as a target for migration. Thus, this is either an environment configuration issue, test has specified that host explicitly not allowing for nova to smartly guess the target host or a nova bug where nova does not pick correct host for migration.
According to this, the target host cannot be used as a target for migration. Thus, this is either an environment configuration issue, test has specified that host explicitly not allowing for nova to smartly guess the target host or a nova bug where nova does not pick correct host for migration.