iengchen opened a new issue #1712: what is `unit topic`,what is `has unit sub` URL: https://github.com/apache/rocketmq/issues/1712 When I creat topic use `updateTopic` command,it has following arguments: ``` usage: mqadmin updateTopic -b <arg> | -c <arg> [-h] [-n <arg>] [-o <arg>] [-p <arg>] [-r <arg>] [-s <arg>] -t <arg> [-u <arg>] [-w <arg>] -b,--brokerAddr <arg> create topic to which broker -c,--clusterName <arg> create topic to which cluster -h,--help Print help -n,--namesrvAddr <arg> Name server address list, eg: 192.168.0.1:9876;192.168.0.2:9876 -o,--order <arg> set topic's order(true|false) -p,--perm <arg> set topic's permission(2|4|6), intro[2:W 4:R; 6:RW] -r,--readQueueNums <arg> set read queue nums -s,--hasUnitSub <arg> has unit sub (true|false) -t,--topic <arg> topic name -u,--unit <arg> is unit topic (true|false) -w,--writeQueueNums <arg> set write queue nums ``` I can't find any documents explain what does the arguments mean。I want to ask following questions: - what is `unit topic`? - what is `has unit sub`
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