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Re: Re: [COMMITTERS] pgsql: Efficient transaction-controlled synchronous replication.

From: Aidan Van Dyk <aidan(at)highrise(dot)ca>
To: Andrew Dunstan <andrew(at)dunslane(dot)net>
Cc: Heikki Linnakangas <heikki(dot)linnakangas(at)enterprisedb(dot)com>, Simon Riggs <simon(at)2ndquadrant(dot)com>, pgsql-hackers(at)postgresql(dot)org
Subject: Re: Re: [COMMITTERS] pgsql: Efficient transaction-controlled synchronous replication.
Date: 2011-03-07 14:29:04
Message-ID: AANLkTinkzJ=UrLbThZy2KeQg+SjwYqj2r0mDomMwirB7@mail.gmail.com (view raw or flat)
Thread:
Lists: pgsql-committerspgsql-hackers
On Mon, Mar 7, 2011 at 2:21 PM, Andrew Dunstan <andrew(at)dunslane(dot)net> wrote:

>> For me, that's enough to call it "synchronous replication". It provides a
>> useful guarantee to the client. But you could argue for an even stricter
>> definition, requiring atomicity so that if a transaction is not successfully
>> replicated for any reason, including crash, it is rolled back in the master
>> too. That would require 2PC.
>>
>
> My worry is that the stricter definition is what many people will expect,
> without reading the fine print.

They they are either already hosed or already using 2PC.

a.
-- 
Aidan Van Dyk                                             Create like a god,
aidan(at)highrise(dot)ca                                       command like a king,
http://www.highrise.ca/                                   work like a slave.

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