GitHub user zuoHx580 edited a discussion: fail to switch master and log said Update master address from 192.168.47.129:10911 to null
version: 5.1 jdk:1.8 enviroment:  and three nameserve nested DLedger Controller on **192.168.47.128**, **192.168.47.129**, **192.168.47.130** i shutdown the b-master(192.168.47.129)manually and then I found slave(192.168.47.131) can't become master here is log:  GitHub link: https://github.com/apache/rocketmq/discussions/6616 ---- This is an automatically sent email for dev@rocketmq.apache.org. To unsubscribe, please send an email to: dev-unsubscr...@rocketmq.apache.org