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Re: [HACKERS] Transactions involving multiple postgres foreign servers - Mailing list pgsql-hackers

From Michael Paquier
Subject Re: [HACKERS] Transactions involving multiple postgres foreign servers
Date
Msg-id CAB7nPqT5jp+eeP6FKhpaY8AQPFNmCetwVK7ueTF1KeSQBNfmFQ@mail.gmail.com
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In response to Re: [HACKERS] Transactions involving multiple postgres foreign servers  (Masahiko Sawada <sawada.mshk@gmail.com>)
Responses Re: [HACKERS] Transactions involving multiple postgres foreign servers
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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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