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[BUGS] Re: BUG #14680: startup process on standby encounter a deadlock ofTwoPhaseStateLock when redo 2PC xlog - Mailing list pgsql-bugs

From wangchuanting
Subject [BUGS] Re: BUG #14680: startup process on standby encounter a deadlock ofTwoPhaseStateLock when redo 2PC xlog
Date
Msg-id 1496368772770-5964407.post@n3.nabble.com
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In response to Re: [BUGS] BUG #14680: startup process on standby encounter adeadlock of TwoPhaseStateLock when redo 2PC xlog  (Michael Paquier <michael.paquier@gmail.com>)
Responses Re: [BUGS] Re: BUG #14680: startup process on standby encounter adeadlock of TwoPhaseStateLock when redo 2PC xlog  (Michael Paquier <michael.paquier@gmail.com>)
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Hi Michael,

appreciate for your quick response.

i look carefully on the patch, because of we removed TwoPhaseStateLock
lwlock acquire in `RemoveGXact' and let caller held lwlock, so i think:
1. xact_redo also need held lwlock before call PrepareRedoRemove
2. RecoverPreparedTransactions also need held lwlock before call
ProcessTwoPhaseBuffer







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