How to Restore a Node After OS Reinstallation in a TiDB Cluster

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

Original topic: tidb集群某节点OS重装后 节点如何恢复

| username: TiDBer_Kw52jmHi

[Test Environment for TiDB] Testing
[Encountered Issue: Problem Phenomenon and Impact] After scaling in and out operations, TiKV fails to start.

| username: hacker_77powerful | Original post link

Can you post a screenshot of the error?

| username: 像风一样的男子 | Original post link

Refer to 专栏 - TIKV节点数据文件误删后不更换服务器快速恢复 | TiDB 社区

| username: zhanggame1 | Original post link

Provide more details.

| username: DBAER | Original post link

There should be no problem with normal diffusion capacity. Let’s check the logs first.

| username: 呢莫不爱吃鱼 | Original post link

There’s too little information, provide more logs to take a look~

| username: 小龙虾爱大龙虾 | Original post link

It will be fine once the new machine is added for expansion.

| username: TiDBer_Kw52jmHi | Original post link

Thank you! Following this procedure resolved my previous issue, which was the same as this one, where the KV was always offline.

| username: Jack-li | Original post link

Post some pictures to check the information.

| username: TiDBer_JUi6UvZm | Original post link

You need to describe the operation process. I guess the guy might have made a mistake. Also, please post the logs of the TIKV that cannot be started.