Re: [HACKERS] [COMMITTERS] pgsql: Use asynchronous connect API in libpqwalreceiver

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От Tom Lane
Тема Re: [HACKERS] [COMMITTERS] pgsql: Use asynchronous connect API in libpqwalreceiver
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Msg-id 10458.1489763266@sss.pgh.pa.us
обсуждение исходный текст
Ответ на Re: [HACKERS] [COMMITTERS] pgsql: Use asynchronous connect API inlibpqwalreceiver  (Andrew Dunstan <andrew.dunstan@2ndquadrant.com>)
Ответы Re: [HACKERS] [COMMITTERS] pgsql: Use asynchronous connect API inlibpqwalreceiver  (Petr Jelinek <petr.jelinek@2ndquadrant.com>)
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Andrew Dunstan <andrew.dunstan@2ndquadrant.com> writes:
> I have confirmed on jacana Petr's observation that adding a timeout to
> the WaitLatchOrSocket cures the problem.

Does anyone have a theory as to why that cures the problem?

What length of timeout is being suggested here?  Would a long timeout
perhaps create a performance issue?  That is, I'm wondering if the
wait actually sleeps to the end of the timeout in the problem case(s).
        regards, tom lane

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