Signed-off-by: PingWang <wang.ping5@zte.com.cn>

update the controllermanager.go
Signed-off-by: PingWang <wang.ping5@zte.com.cn>

update log
Signed-off-by: PingWang <wang.ping5@zte.com.cn>

add time.Sleep
Signed-off-by: PingWang <wang.ping5@zte.com.cn>

update for go vet
Signed-off-by: PingWang <wang.ping5@zte.com.cn>