Received: from maia.hub.org (maia-5.hub.org [200.46.204.29]) by mail.postgresql.org (Postfix) with ESMTP id 8BE101337B6D for ; Tue, 2 Nov 2010 11:23:22 -0300 (ADT) Received: from mail.postgresql.org ([200.46.204.86]) by maia.hub.org (mx1.hub.org [200.46.204.29]) (amavisd-maia, port 10024) with ESMTP id 94334-02 for ; Tue, 2 Nov 2010 14:23:17 +0000 (UTC) X-Greylist: from auto-whitelisted by SQLgrey-1.7.6 Received: from abpni.co.uk (unknown [92.27.106.173]) by mail.postgresql.org (Postfix) with ESMTP id A09DF1337B69 for ; Tue, 2 Nov 2010 11:23:14 -0300 (ADT) Content-class: urn:content-classes:message MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01CB7A99.7C0FD228" X-MimeOLE: Produced By Microsoft Exchange V6.5 Subject: Re: Replication Date: Tue, 2 Nov 2010 14:20:54 -0000 Message-ID: <46C13AA90DB8844DAB79680243857F0F0AFF07@server1.ABPNI.local> X-MS-Has-Attach: X-MS-TNEF-Correlator: Thread-Topic: [GENERAL] Replication Thread-Index: Act6kUOWR3pDQKXYRkmpq9v+PbWALQAB+VfN References: <4CCF1AC4.6060800@abpni.co.uk><4CCF4187.8010205@abpni.co.uk><4CCFB6CF.4060006@abpni.co.uk> From: "Jonathan Tripathy" To: "Vick Khera" , X-Virus-Scanned: Maia Mailguard 1.0.1 X-Spam-Status: No, hits=3.214 tagged_above=-5 required=5 tests=BAYES_00=-1.9, FS_REPLICA=3.599, HTML_MESSAGE=0.001, MIME_QP_LONG_LINE=0.001, RDNS_NONE=0.793, SARE_SPEC_REPLICA=0.72 X-Spam-Level: *** X-Archive-Number: 201011/115 X-Sequence-Number: 169181 This is a multi-part message in MIME format. ------_=_NextPart_001_01CB7A99.7C0FD228 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable ________________________________ From: pgsql-general-owner@postgresql.org on behalf of Vick Khera Sent: Tue 02/11/2010 13:18 To: pgsql-general Subject: Re: [GENERAL] Replication On Tue, Nov 2, 2010 at 2:59 AM, Jonathan Tripathy = wrote: > What is the difference between the "Hot-Standby" and "Warm-Standby"? = Is the > only different that the "Hot-Standby" standby servers are read-only, = whereas > the "Warm-Standby" standbys can't be queried at all? > That's the general definition of those two terms as applied to a database server. -------------------------------------------------------------------------= ----------------- Excellent! In terms of streaming "Warm-Standby" replication, how much data loss = will occur? Are we talking seconds, minutes, or hours? Let's assume a = lightly used database (maybe 50 update queries an hour) and the master = and slave are connected by Gigabit ethernet Thanks ------_=_NextPart_001_01CB7A99.7C0FD228 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable =0A= Re: [GENERAL] Replication=0A= =0A= =0A= =0A=

=0A=
=0A= From: = pgsql-general-owner@postgresql.org on =0A= behalf of Vick Khera
Sent: Tue 02/11/2010 13:18
To: =0A= pgsql-general
Subject: Re: [GENERAL] = Replication

=0A=
=0A=

On Tue, Nov 2, 2010 at 2:59 AM, Jonathan Tripathy =0A= <jonnyt@abpni.co.uk> wrote:
> What is the difference between = the =0A= "Hot-Standby" and "Warm-Standby"? Is the
> only different that the =0A= "Hot-Standby" standby servers are read-only, whereas
> the = "Warm-Standby" =0A= standbys can't be queried at all?
>

That's the general = definition =0A= of those two terms as applied to a
database =0A= server.

----------------------------------------------------------= --------------------------------
Excellent!

=0A=
In terms of streaming "Warm-Standby" replication, = how much =0A= data loss will occur? Are we talking seconds, minutes, or hours? Let's = assume a =0A= lightly used database (maybe 50 update queries an hour) and the master = and slave =0A= are connected by Gigabit ethernet
=0A=

Thanks

=0A=


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