From: | Heikki Linnakangas <heikki(dot)linnakangas(at)enterprisedb(dot)com> |
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To: | Dave Page <dpage(at)pgadmin(dot)org> |
Cc: | PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org>, Magnus Hagander <magnus(at)hagander(dot)net> |
Subject: | Re: Streaming a base backup from master |
Date: | 2010-09-03 11:48:55 |
Message-ID: | 4C80E0A7.9030006@enterprisedb.com |
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Lists: | pgsql-hackers |
On 03/09/10 14:28, Dave Page wrote:
> On Fri, Sep 3, 2010 at 12:19 PM, Heikki Linnakangas
> <heikki(dot)linnakangas(at)enterprisedb(dot)com> wrote:
>> Here's a WIP patch. It adds a new "TAKE_BACKUP" command to the replication
>> command set. Upon receiving that command, the master starts a COPY, and
>> streams a tarred copy of the data directory to the client. The patch
>> includes a simple command-line tool, pg_streambackup, to connect to a server
>> and request a backup that you can then redirect to a .tar file or pipe to
>> "tar x".
>
> Cool. Can you add a TODO to build in code to un-tar the archive? tar
> is not usually found on Windows systems, and as we already have tar
> extraction code in pg_restore it could presumably be added relatively
> painlessly.
Ok. Another obvious thing that people will want is to gzip the tar file
while sending it, to reduce network traffic.
--
Heikki Linnakangas
EnterpriseDB http://www.enterprisedb.com
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