Failed when starting with set address as node public IP in conf/network.yaml

[Brian]

Brief of the issue
Set address in conf/network.yaml as node public IP, result in failure when staring.

Your environment

• XuperChain: v5.3.0
• OS: Ubuntu 22.04.1 LTS (GNU/Linux 5.15.0-1023-azure x86_64)
• Go: go1.18.1 linux/amd64
• Gcc: 11.3.0 (Ubuntu 11.3.0-1ubuntu1~22.04)

Repo steps

1. Download Xuperchain v5.3.0
2. make && make testnet
3. Configurate address in testnet/<Node>/conf/network.yaml

# Address multiaddr string
address: /ip4/<NodePublicIP>/tcp/47101

4. cd testnet/<Node> && bash control.sh start

Expected behaviours

...
start finish.pid:<PID>
Done!

What actually happened

...
..........start timeout
start timeout,force stop app.
force stop xchain.
force stop succ
start fail.

Additional information

• set address to below will work
  • 127.0.0.1
  • 0.0.0.0
  • Local IP

Set STD debug log enabled, then got:

<Time> lvl=eror msg="Create p2p host error" module=xchain log_id=1669809433_7959671397435886 s_mod=network call=server.go:117 pid=25002 error="failed to listen on any addresses: [listen tcp4 <NodePublicIP>:47101: bind: cannot assign requested address]"
<Time> start service failed.err:init engine error: Err:500-50100-create engine context failed+create network failed.err:create network object failed.err:new network failed because init p2p service error.err:create host error

[Brian]

Reason:

• The so-called NodePublicIP is a public EIP in cloud provider, but not an actual IP for the node.

How to find all IPs for a node:

• Linux: ip address | grep inet | awk '{print $2}'
• MacOS: ifconfig | grep inet | awk '{print $2}'

Solution:

• Set address with node's IP

[Brian]

The useful logs only exist in debug STD log, it's difficult for debugging.
It supposed to be printed in log file. Otherwise, it seems that the program quits silently.