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

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От wangchuanting
Тема [BUGS] Re: BUG #14680: startup process on standby encounter a deadlock ofTwoPhaseStateLock when redo 2PC xlog
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Msg-id 1496662337584-5964796.post@n3.nabble.com
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Ответ на Re: [BUGS] Re: BUG #14680: startup process on standby encounter adeadlock of TwoPhaseStateLock when redo 2PC xlog  (Michael Paquier <michael.paquier@gmail.com>)
Ответы Re: [BUGS] Re: BUG #14680: startup process on standby encounter adeadlock of TwoPhaseStateLock when redo 2PC xlog
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Hi, Michael

I don't understand why the patch remove TwoPhaseStateLock in MarkAsPrepared.

if so:
1. does it need remove lock acquire in MarkAsPreparing also?
2. MarkAsPrepared will call ProcArrayAdd, and in ProcArrayAdd it acquires
ProcArrayLock, we should carefully handle the lock sequence about these two
locks.






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