Create Drainer server failed. Error="unknown checkpoint type: root"

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

Original topic: create drainer server failed. error="unknown checkpoint type: root

| username: ablewang_xiaobo

【TiDB Usage Environment】Production Environment
【TiDB Version】v4.0.9
【Encountered Problem】
Deployed drainer through scale-out, but encountered an error when starting it. Now, I also can’t remove it through scale-in.
【Reproduction Path】``
【Problem Phenomenon and Impact】

【Attachments】

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| username: xfworld | Original post link

It seems that there is a bit of a network issue. It would be best to resolve the network problem first, start the service on this node, and then proceed with scaling down.

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| username: ablewang_xiaobo | Original post link

After checking, I found that the type in my configuration file was written as root, but it should be written as tidb. My backend is tidb.

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| username: system | Original post link

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