Date: Fri, 9 Jan 2015 10:24:40 -0700 (MST)
From: David G Johnston <david.g.johnston@gmail.com>
To: pgsql-admin@postgresql.org
Message-ID: <1420824280096-5833424.post@n5.nabble.com>
In-Reply-To: <1Y9dC8-0002qL-2Y@l31.mail.transversal.net>
References: <1Y9dC8-0002qL-2Y@l31.mail.transversal.net>
Subject: Re: Replicating from 9.1.10 into 9.3.5
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Rob Cowell wrote
> Hi,
> 
> Is it possible to set up replication from a 9.1.10 master to  a 9.3.5
> slave?
> I've taken a base-backup from the master and rsync'd it over to the slave
> but I'm seeing the following error :
> 
>    HINT:  It looks like you need to initdb.
>    FATAL:  database files are incompatible with server
>    DETAIL:  The database cluster was initialized with PG_CONTROL_VERSION
> 903, but the server was compiled with PG_CONTROL_VERSION 937.
> 
> Would I be better off dumping the data from 9.1.10 and re-importing into
> 9.3.5, then starting replication ?
> (or is there an easier way?) :)
> 
> Cheers,
> Rob.

If you mean ongoing streaming replication then, as indicated from the error
message you are getting, no, you cannot mix server versions.

Only logical replication can do that; which, for you, would be a third-party
solution.

David J.


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