From: | Laurenz Albe <laurenz(dot)albe(at)cybertec(dot)at> |
---|---|
To: | 林晓东 <lin_xd(at)126(dot)com>, pgsql-general(at)postgresql(dot)org |
Subject: | Re: what's the error meaning? on mast/slavery replication . |
Date: | 2018-05-06 11:01:21 |
Message-ID: | 1525604481.2342.2.camel@cybertec.at |
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Lists: | pgsql-general |
林晓东 wrote:
>
> hi,all
> I got this when setup two replication server:
>
> 致命错误: 在主用服务器和备用服务器之间,数据库系统标识符是不一样的。
> 详细信息: 主用服务器的标识符是6551342231479624101,备用服务器的标识符是6551367700460643417。
> ---fatal erro: in main and backup server ,the database 's system id is not same...
> what's mean of this ,how to deal with ?
You need to start the standby with a physical backup of the database,
e.g. using pg_basebackup.
You cannot restore a database dump taken with pg_dump to start
streaming replication, because that is a logical backup (there is
no guarantee that the same data are in the same block of the same file).
Yours,
Laurenz Albe
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Cybertec Schönig & Schönig GmbH
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