of subnet "10.10.10.0"
Source Destination Connected?
------------------------------ ------------------------------ ----------------
node74:10.10.10.1 node76:10.10.10.2 passed
Result: TCP connectivity check passed for subnet "10.10.10.0"
Check: Node connectivity of subnet "20.20.20.0"
WARNING:
Make sure IP address "20.20.20.1" is up and is a valid IP address on node "node74"
Source Destination Connected?
------------------------------ ------------------------------ ----------------
node76:eth2 node74:eth2 no
Result: Node connectivity failed for subnet "20.20.20.0"
Check: TCP connectivity of subnet "20.20.20.0"
Source Destination Connected?
------------------------------ ------------------------------ ----------------
node74:20.20.20.1 node76:20.20.20.2 failed ------注意：两个节点有一组网卡配置了同一网段的IP，但是却没有联通，造成node connectivity检查失败。
Result: TCP connectivity check failed for subnet "20.20.20.0"
Interfaces found on subnet "172.16.52.0" that are likely candidates for VIP are:
node76 eth0:172.16.54.76 eth0:172.16.54.176
node74 eth0:172.16.54.74 eth0:172.16.54.174 eth0:172.16.54.175
Interfaces found on subnet "10.10.10.0" that are likely candidates for a private interconnect are:
node76 eth1:10.10.10.2
node74 eth1:10.10.10.1
Result: Node connectivity check failed
Checking for multiple users with UID value 0
Result: Check for multiple users with UID value 0 passed
Post-check for hardware and operating system setup was unsuccessful on all the nodes.
原来是因为两个节点有一对网卡配置了通网段的IP地址，但是实际上两个网卡并没有连通，造成了node connectivity检查失败。
Check: TCP connectivity of subnet "20.20.20.0"
Source Destination Connected?
------------------------------ ------------------------------ ----------------
node74:20.20.20.1 node76:20.20.20.2 failed
这样解决办法就有了，要么就是把两个网卡连通，要么就是修改为不同的网段，或者干脆直接停用这两块网卡。
我这边停用这两块网卡后，重新执行安装检查通过。
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