Re: [HACKERS] AdvanceXLInsertBuffer vs. WAL segment compressibility - Mailing list pgsql-hackers

From Chapman Flack
Subject Re: [HACKERS] AdvanceXLInsertBuffer vs. WAL segment compressibility
Date
Msg-id 59557AB7.1060203@anastigmatix.net
Whole thread Raw
In response to Re: [HACKERS] AdvanceXLInsertBuffer vs. WAL segment compressibility  (Chapman Flack <chap@anastigmatix.net>)
List pgsql-hackers
On 06/25/17 21:20, Chapman Flack wrote:
> I want to make sure I understand what the deadlock potential is
> in this case. AdvanceXLInsertBuffer will call WaitXLogInsertionsToFinish
> ...
> Does not the fact we hold all the insertion slots exclude the possibility
> that any dirty buffer (preceding the one we're touching) needs to be checked
> for in-flight insertions?     [in the filling-out-the-log-tail case only]

Anyone?

Or have I not even achieved 'wrong' yet?

-Chap



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