liruhui opened a new issue, #4117:
URL: https://github.com/apache/rocketmq/issues/4117
# three question
## 1: fist question
```java
Use docker run a namesrv container There are log files when data volumes
are not used, but There are no log files when using data
volumes
// example1 log files
docker run -d --name huigenamesrv -p 9876:9876 apache/rocketmq:4.9.2 sh
mqnamesrv
//example2 no log files
docker run -d --name huigenamesrv -p 9876:9876 -v
namesrv:/home/rocketmq/logs apache/rocketmq:4.9.2 sh mqnamesrv
why?????
```
## 2: second question
```java
Use docker run a broker container There are log files when data volumes are
not used, but There are no log files when using data
volumes
// example1 log files
docker run -d --name huigebroker -p 10911:10911 -p 10909:10909 -p
10912:10912 -e "NAMESRV_ADDR=192.168.154.128:9876" apache/rocketmq:4.9.2 sh
mqbroker
//example2 no log files
docker run -d --name huigebroker -p 10911:10911 -p 10909:10909 -p
10912:10912 -e "NAMESRV_ADDR=192.168.154.128:9876" -v
brokerlog:/home/rocketmq/logs apache/rocketmq:4.9.2 sh mqbroker -c
../conf/broker.conf
why?????
```
## 3: three question
```java
Use docker run a broker container When the store is not mounted, it starts
normally; when the store is mounted, an error will be reported, and there is no
store data in the data volume.
// example1: no mount store ==> success
docker run -d --name huigebroker -p 10911:10911 -p 10909:10909 -p
10912:10912 -e "NAMESRV_ADDR=192.168.154.128:9876" -v
brokerlog:/home/rocketmq/logs -v
brokerconfig:/home/rocketmq/rocketmq-4.9.2/conf apache/rocketmq:4.9.2 sh
mqbroker -c ../conf/broker.conf
// example2 : mount store => error container exit
docker run -d --name huigebroker -p 10911:10911 -p 10909:10909 -p
10912:10912 -e "NAMESRV_ADDR=192.168.154.128:9876" -v
brokerlog:/home/rocketmq/logs -v brokerstore:/home/rocketmq/store -v
brokerconfig:/home/rocketmq/rocketmq-4.9.2/conf apache/rocketmq:4.9.2 sh
mqbroker -c ../conf/broker.conf
why??? how to do ??
```
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