Basic understanding of distributed databasesFamiliarity with TDengine cluster operations
新手友好度1-100 的估计分数，表示该议题对首次贡献者的友好程度。
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研究方向
Investigate whether a new node should have non zero vnodes after expansion. Check the TDengine source code in the dnode or vnode modules for vnode allocation logic during node addition. Compare the behavior with existing nodes. Look for any configuration or condition that might result in 0 vnodes. Consider reviewing the cluster documentation or asking the reporter for more details like logs or the output of cluster status commands.
