From: Jonathan Tripathy <jonnyt@abpni.co.uk>
To: Scott Marlowe <scott.marlowe@gmail.com>
To: pgsql-general@postgresql.org
Subject: Re: Replication
Date: Mon, 01 Nov 2010 20:28:05 +0000
Message-ID: <4CCF22D5.7020109@abpni.co.uk> (raw)
In-Reply-To: <AANLkTik+TT22C2iPOLVO9J3Tv6sCojjQ_CaT61oKb4A1@mail.gmail.com>
References: <4CCF1AC4.6060800@abpni.co.uk>
<ian6bg$1so$1@dough.gmane.org>
<4CCF1F49.5060809@abpni.co.uk>
<AANLkTik+TT22C2iPOLVO9J3Tv6sCojjQ_CaT61oKb4A1@mail.gmail.com>
On 01/11/10 20:21, Scott Marlowe wrote:
> On Mon, Nov 1, 2010 at 2:12 PM, Jonathan Tripathy<jonnyt@abpni.co.uk> wrote:
>> On 01/11/10 20:01, Thomas Kellerer wrote:
>>> Jonathan Tripathy wrote on 01.11.2010 20:53:
>>>> Hi Everyone,
>>>>
>>>> I'm looking for the best solution for "Hot Standbys" where once the
>>>> primary server fails, the standby will take over and act just like
>>>> the master did. The standby must support INSERTS and UPDATES as well
>>>> (once the master has failed)
>>>>
>>>> Are there any solutions like this? Looking on the Postgresql site,
>>>> all the standby solutions seem to be read only..
>>> 9.0 has streaming replication and "Hot Standby"
>>>
>>> http://www.postgresql.org/docs/current/static/hot-standby.html
>>>
>>> http://www.postgresql.org/docs/current/static/warm-standby.html#STREAMING-REPLICATION
>>>
>>> Regards
>>> Thomas
>>>
>>>
>>>
>> But does that not only allow "read-only" things to work on the standby?
> Yep. Generally when to fail over is considered a business decision.
> I think only pgpool supports automatic failover but has a lot of
> limitations to deal with otherwise.
So really Postgresql doesn't have any "Hot Standbys" that once fail-over
has occurred, the system can act as normal? For this, would I have to
looking in Xen or VMWare HA?
I'm guessing the standbys in the "warm-failover" setup allow write
operations?
Thanks
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To: pgsql-general@postgresql.org
Cc: jonnyt@abpni.co.uk, scott.marlowe@gmail.com
Subject: Re: Replication
In-Reply-To: <4CCF22D5.7020109@abpni.co.uk>
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