taosdata/TDengine

扩容新节点的vnodes数量为0

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#34,512 opened on Feb 5, 2026

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Description

1、问题描述 （1）未扩容前

已有集群节点数为3，3mnode3副本，当前扩容新增了节点4，发现数据都能成功同步到新节点，但查询节点列表，显示节点4的vnode数量为0，是否正常？

Contributor guide

Research direction
Investigate the vnode allocation logic during cluster expansion to determine why new nodes have zero vnodes and whether this is expected behavior or a bug.
Tech stack
c
Domain
database
Issue type
Bug
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
2
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
1-3 hours
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
Active
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Needs investigation
Prerequisites
GitTDengine cluster knowledge
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
40