Re: [HACKERS] Transactions involving multiple postgres foreign servers

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От Michael Paquier
Тема Re: [HACKERS] Transactions involving multiple postgres foreign servers
Дата
Msg-id CAB7nPqT5jp+eeP6FKhpaY8AQPFNmCetwVK7ueTF1KeSQBNfmFQ@mail.gmail.com
обсуждение исходный текст
Ответ на Re: [HACKERS] Transactions involving multiple postgres foreign servers  (Masahiko Sawada <sawada.mshk@gmail.com>)
Ответы Re: [HACKERS] Transactions involving multiple postgres foreign servers  (Robert Haas <robertmhaas@gmail.com>)
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On Fri, Jul 28, 2017 at 7:28 AM, Masahiko Sawada <sawada.mshk@gmail.com> wrote:
> That also requires to share the same XID space with all remote nodes.

You are putting your finger on the main bottleneck with global
consistency that XC and XL has because of that. And the source feeding
the XIDs is a SPOF.

> Perhaps the CSN based snapshot can make this more simple.

Hm. This needs a closer look.
-- 
Michael

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