Caused by: java.net.UnknownHostException

nameSrv启动异常:
Caused by: java.net.UnknownHostException: lanhuigu: lanhuigu: unknown error
at java.net.InetAddress.getLocalHost(InetAddress.java:1505)
at org.apache.rocketmq.common.MixAll.localhost(MixAll.java:406)
... 3 more
Caused by: java.net.UnknownHostException: lanhuigu: unknown error
at java.net.Inet6AddressImpl.lookupAllHostAddr(Native Method)
at java.net.InetAddress$2.lookupAllHostAddr(InetAddress.java:928)
at java.net.InetAddress.getAddressesFromNameService(InetAddress.java:1323)
at java.net.InetAddress.getLocalHost(InetAddress.java:1500)

... 4 more

解决办法:

需要保证:/etc/sysconfig/network和/etc/hosts中主机名一致。
network文件配置:
NETWORKING=yes
HOSTNAME=lanhuigu

eg:

hosts文件配置:
127.0.0.1   lanhuigu
::1         localhost localhost.localdomain localhost6 localhost6.localdomain6

eg:

修改完后再重新执行启动命令。