org.apache.pulsar.shade.io.netty.channel.ConnectTimeoutException: connection timed out

**Describe the bug**
org.apache.pulsar.shade.io.netty.channel.ConnectTimeoutException: connection timed out

**To Reproduce**
Steps to reproduce the behavior:
1. Connect a problematic pulsar server
2. The service falls into an endless loop, which affects the normal startup logic

**Expected behavior**
I hope this exception will not be blocked and the service can be started normally

Start by reproducing the issue with a problematic Pulsar server and trace the startup path affected by org.apache.pulsar.shade.io.netty.channel.ConnectTimeoutException. Determine where the service enters the endless loop and verify that startup completes normally without the exception being blocked.

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