[Bug] There's no error log if proxy in cluster mode can't connect to broker

[Yelijah]

Before Creating the Bug Report

• [X] I found a bug, not just asking a question, which should be created in GitHub Discussions.

• [X] I have searched the GitHub Issues and GitHub Discussions of this repository and believe that this is not a duplicate.

• [X] I have confirmed that this bug belongs to the current repository, not other repositories of RocketMQ.

Runtime platform environment

docker

RocketMQ version

5.1.4

JDK Version

jdk1.8

Describe the Bug

There's no error log if proxy in cluster mode can't connect to broker . the ClusterMetadataService catch all errors:

Steps to Reproduce

like above

What Did You Expect to See?

show some error log

What Did You See Instead?

no error log

Additional Context

No response

[leizhiyuan]

If you can't connect to the broker, even if there is no error here, there will be an error in the subsequent write message