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The mvcc snapshot can't be released for a long time #4432

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lilinghai opened this issue Mar 25, 2022 · 2 comments · Fixed by #4441
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The mvcc snapshot can't be released for a long time #4432

lilinghai opened this issue Mar 25, 2022 · 2 comments · Fixed by #4441
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@bestwoody
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affects-5.4 This bug affects the 5.4.x(LTS) versions. affects-6.0 severity/critical type/bug The issue is confirmed as a bug.

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v6.0
@lilinghai lilinghai added the type/bug The issue is confirmed as a bug. label Mar 25, 2022
@bestwoody bestwoody mentioned this issue Mar 25, 2022
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@bestwoody
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It seems exchangeRecevier didn't canceled when its task has been canceled.

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bestwoody commented Mar 25, 2022 •
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The problem is caused by some exception from MPPTask::preprocess such as “DB::TiFlashException: Table 68 schema version 1586 newer than query schema version 1585” . It leads ExchangeReceiver cant be canceled

@bestwoody bestwoody mentioned this issue Mar 25, 2022
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@bestwoody bestwoody self-assigned this Mar 25, 2022
@ti-chi-bot ti-chi-bot mentioned this issue Mar 25, 2022
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ti-chi-bot added a commit that referenced this issue Mar 26, 2022
@ti-chi-bot
fix a bug that ExchangeReceiver can't be canceled (#4441) (#4445)
81025ae 
close #4432
@bestwoody bestwoody added the affects-5.4 This bug affects the 5.4.x(LTS) versions. label Mar 31, 2022
@ti-chi-bot ti-chi-bot mentioned this issue Mar 31, 2022
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@bestwoody bestwoody

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affects-5.4 This bug affects the 5.4.x(LTS) versions. affects-6.0 severity/critical type/bug The issue is confirmed as a bug.
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@lilinghai @ti-chi-bot @bestwoody