对使用二进制安装的TIDB进行扩容

./pd-server
–data-dir=/data/pd4
–client-urls=“http://172.18.8.234:2379
–peer-urls=“http://172.18.8.234:2380
–advertise-client-urls=“http://172.18.8.234:2379
–advertise-peer-urls=“http://172.18.8.234:2380
–join=httpd://172.18.8.234:2380
–initial-cluster=“pd1=http://172.18.8.230:2380,pd2=http://172.18.8.231:2380,pd3=http://172.18.8.232:2380 ,pd4=httpd:172.18.8.234”-L “info”
–log-file=/root/tidb-v5.0.1-linux-amd64/log/pd.log
是这样在初始化前在加一个join,还是直接把初始化参数替换成join?