Region Check Miss-Peer 3: Automatically Delete After Adding Replica

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This topic has been translated from a Chinese forum by GPT and might contain errors.

Original topic: region check miss-peer 3个 添加副本后自动删除

| username: Hacker_K4rqYquD

[TiDB Usage Environment] Production Environment / Testing / PoC
[TiDB Version] 7.1.2
[Reproduction Path] Operations performed that led to the issue
[Encountered Issue: Problem Phenomenon and Impact]
[Resource Configuration] Enter TiDB Dashboard - Cluster Info - Hosts and take a screenshot of this page
[Attachments: Screenshots/Logs/Monitoring]
6 KV nodes, 3 NVMe, 3 SSD. Region check miss-peer detected 3 regions with missing replicas. After adding the operator, it returns to normal in 1-2 minutes, but the issue reoccurs later. A newbie requesting guidance from experts.


| username: 我是吉米哥 | Original post link

Following to see the experts’ replies.

| username: zhaokede | Original post link

Possible disk performance differences or network jitter or brief failures. What is in the PD logs, before and after the loss?