node_hosts:
"127.0.0.1 localhost\n
172.171.8.10 controller10\n
172.171.8.11 compute11 swift11\n
172.171.8.12 compute12 swift12\n
# The following lines are desirable for IPv6 capable hosts\n
::1 localhost ip6-localhost ip6-loopback\n
ff02::1 ip6-allnodes\n
ff02::2 ip6-allrouters\n"
+++++++++++++++++++++++++++++++++++++++++++++++++++++++
root@compute11:~# cat /etc/hosts
127.0.0.1 localhost
172.171.8.10 controller10
172.171.8.11 compute11 swift11
172.171.8.12 compute12 swift12
#The following lines are desirable for IPv6 capable hosts
::1 localhost ip6-localhost ip6-loopback
ff02::1 ip6-allnodes
ff02::2 ip6-allrouters
就是 172 开头的多空一格,