Tidb7.1.1的Ticdc参数partition-num无效

都报错了,提示设置的partition-num数量大于kafka的topic分区数,报错内容是一样的:
[CDC:ErrKafkaNewSaramaProducer][CDC:ErrKafkaInvalidPartitionNum]the number of partition (5) specified in sink-uri is more than that of actual topic (3)