| From: | Jeff Frost <jeff(at)frostconsultingllc(dot)com> |
|---|---|
| To: | Bruce Momjian <bruce(at)momjian(dot)us> |
| Cc: | Chris Browne <cbbrowne(at)acm(dot)org>, pgsql-docs(at)postgresql(dot)org |
| Subject: | Re: [HACKERS] Replication documentation addition |
| Date: | 2006-11-15 00:13:59 |
| Message-ID: | Pine.LNX.4.64.0611141613010.23695@discord.home.frostconsultingllc.com |
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| Lists: | pgsql-docs pgsql-hackers |
On Tue, 14 Nov 2006, Bruce Momjian wrote:
>> "In clustering, each server can accept write requests, and these write
>> requests are broadcast from the original server to all other servers before
>> each transaction commits."
>>
>> Unfortunately, I can't seem to come up with anything more clever.
>
> Basically, when you are broadcasting outside the server, you are
> broadcasting SQL queries, and those queries do not have information
> about non-deterministic functions and have issues with universal commits
> on all node.
Ahh..I like this explanation, because the inter-server communication in
clustering is not necessarily SQL queries.
--
Jeff Frost, Owner <jeff(at)frostconsultingllc(dot)com>
Frost Consulting, LLC http://www.frostconsultingllc.com/
Phone: 650-780-7908 FAX: 650-649-1954
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