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region error(mismatch peer error) should be processed and retry #874

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AndreMouche opened this issue Jul 8, 2023 · 4 comments
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region error(mismatch peer error) should be processed and retry #874

AndreMouche opened this issue Jul 8, 2023 · 4 comments
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@cfzjywxk
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affects-6.5 affects-7.1

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@AndreMouche
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Hi,
when tikv returns an region error with mismatch peer id, go-client should process the error and retry instead of returning error directly

[2023/07/07 22:20:34.597 +00:00] [Warn] [endpoint.rs:782] [error-response] [err="Region error (will back off and retry) message: \"\\\"[components/raftstore/src/store/util.rs:385]: mismatch peer id 2 != 1\\\"\""]

related code
https://github.com/tikv/client-go/blob/master/internal/locate/region_request.go#L1652-L1945
@AndreMouche
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@cfzjywxk could you please assist in resolving this issue? I think I can help with the review

@AndreMouche
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AndreMouche commented Jul 10, 2023 •
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Look forward to the fix and backport to TiDB-6.5.x

@BornChanger
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please manage to handle the requirement of #882

@cfzjywxk
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Duplicate with pingcap/tidb#45297.

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