[Bug]: Tenant CN is considered as shared CN since the label reconciliation is async

[aylei]

Is there an existing issue for the same bug?

• I have checked the existing issues.

Environment

• Version or commit-id (e.g. v0.1.0 or 8b23a93): latest
• Hardware parameters:
• OS type:
• Others:

Actual Behavior

When add scale-out new CNs with certain labels, since the label reconciliation is async, the CN is shortly considered as "NO LABEL" and can be used by other clients.

Expected Behavior

CN should not accept connections before its label is properly synced.

Steps to Reproduce

No response

Additional information

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