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lightning: v8.2 lightning failed to import data to v8.1 version tidb cluster #54341

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AkiraXie opened this issue Jul 1, 2024 · 3 comments
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lightning: v8.2 lightning failed to import data to v8.1 version tidb cluster #54341

AkiraXie opened this issue Jul 1, 2024 · 3 comments
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@you06
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affects-8.2 severity/major sig/transaction SIG:Transaction type/bug The issue is confirmed as a bug.

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@AkiraXie
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AkiraXie commented Jul 1, 2024 •
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Bug Report

Please answer these questions before submitting your issue. Thanks!

1. Minimal reproduce step (Required)

  1. setup v8.1 tidb cluster
  2. use v8.2 lightning import data and use check-requirement = true

2. What did you expect to see? (Required)

success

3. What did you see instead (Required)

failed

4. What is your TiDB version? (Required)

v8.2
@AkiraXie AkiraXie added the type/bug The issue is confirmed as a bug. label Jul 1, 2024
@AkiraXie
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AkiraXie commented Jul 1, 2024

/severity major

@jebter jebter added the component/lightning This issue is related to Lightning of TiDB. label Jul 1, 2024
@D3Hunter
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D3Hunter commented Jul 1, 2024 •
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the cause is PD and pd-client 8.2 introduced a new API which doesn't exists in 8.1, and lightning reports unknown method BatchScanRegions for service pdpb.PD during split-scatter, see #54153

lightning doesn't support import into clusters of lower version officially, but it DOES can do it in theory before 8.2

@jebter jebter added sig/transaction SIG:Transaction and removed component/lightning This issue is related to Lightning of TiDB. labels Jul 2, 2024
@jebter jebter mentioned this issue Jul 2, 2024
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This was referenced Jul 3, 2024
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@ti-chi-bot ti-chi-bot mentioned this issue Jul 3, 2024
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@AkiraXie
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AkiraXie commented Jul 5, 2024

after #54365 merged, the issue cannot reproduce

@AkiraXie AkiraXie closed this as completed Jul 5, 2024
@you06 you06 mentioned this issue Jul 12, 2024
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affects-8.2 severity/major sig/transaction SIG:Transaction type/bug The issue is confirmed as a bug.
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lightning: compatible with earlier cluster versions you06/tidb
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@D3Hunter @jebter @you06 @AkiraXie