Subject: Re: [SQL] PostgreSQL 9.3 DB initialization issue
To: Ashish Tiwari <tashish786@gmail.com>
Cc: pgsql-admin@postgresql.org, pgsql-sql@postgresql.org
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From: Adrian Klaver <adrian.klaver@aklaver.com>
Message-ID: <9e6bc162-5082-fd56-fab0-152989e4c002@aklaver.com>
Date: Sat, 13 May 2017 07:00:49 -0700
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On 05/13/2017 06:41 AM, Ashish Tiwari wrote:
> Hi Adrian,
> 
> Please find the in line answers.
> 
> Thanks.
> 
> On May 13, 2017 18:55, "Adrian Klaver" <adrian.klaver@aklaver.com 
> <mailto:adrian.klaver@aklaver.com>> wrote:
> 
>     On 05/13/2017 06:11 AM, Ashish Tiwari wrote:

> 
>     What data, a dump file or the data directory?
> 
> 
> Pgsql/9.3/main

So you are using the deb packages. The above is for the Postgres 9.3 
cluster, where is the data from the Postgres 9.2 cluster?

> 
>     What do you mean by setting of replication?
> 
>     Enabling the Archive and WAL setting.

So was this done before the upgrade, during, after?
I am just not seeing the connection to the error you reported.

> 
> 
>         Now when initializaing the DB getting the error as below.
> 
> 
>     So you ran initdb to create a cluster >
>     Yes  ..

What was the exact command you used.

> 
> 

> 
> 
>         The database cluster was initialized with PG_CONTROL_VERSION
>         922, but the server was compiled with PG_CONTROL_VERSION 937.
> 
> 
>     The above would seem to indicate you tried to start a Postgres 9.3
>     server using a Postgres 9.2 data directory.
> 
> 
> Yes.it seems right.

That is not possible as you found out. When doing an upgrade between 
major versions(see note below) in Postgres you either have to dump the 
data from the older version and restore it to the new version or you 
need to use pg_upgrade.

*NOTE* Up to Postgres version 9.6.x a major version change was a change 
in either of the first two numbers. Starting with the next release 
(10.x) only the first number is a major version.


At this point you should have two Postgres clusters on you machine, 
Something like:

/var/lib/postgresql/9.2/main/

/var/lib/postgresql/9.3/main/

Is this correct?


> 
> 
> 
> 
>         Any solution if DB can be upgraded from 9.2 to 9.3.
> 
> 
>     You are trying to upgrade from Postgres 9.2 to 9.3?
> 
>     How was Postgres installed?
> 
> 
> Sudo apt-get install
> 
> 
>     What OS and version?
> 
>     Ubuntu 14.04 LTS
> 

> 
> 
>         Thanks.
> 
>         Best regards,
>         Ashish
> 


-- 
Adrian Klaver
adrian.klaver@aklaver.com


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