Doubts about replication from many servers

Started by Edilmar LISTASover 9 years ago4 messagesgeneral
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#1Edilmar LISTAS
edilista@intersite.com.br

Hi,

I have 4 PG servers where each one runs many databases.

Now, I would like to create just one PG backup server to replicate all
the databases from 4 PG servers, is it possible? Or Do I need to create
4 PG backup servers?

And if some PG server goes down, how to recovery the system from PG
backup after I reconfigure the PG original server?

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#2Cachique
cachique@gmail.com
In reply to: Edilmar LISTAS (#1)
Re: Doubts about replication from many servers

Hi.
You mean one and only one big cluster with all databases from your 4 PG
servers ?
What about running 4 clusters (different ports) in your backup server and
each taking replication from your master servers.

Regards,
Walter

On Fri, Oct 21, 2016 at 12:09 PM, Edilmar LISTAS <edilista@intersite.com.br>
wrote:

Show quoted text

Hi,

I have 4 PG servers where each one runs many databases.

Now, I would like to create just one PG backup server to replicate all the
databases from 4 PG servers, is it possible? Or Do I need to create 4 PG
backup servers?

And if some PG server goes down, how to recovery the system from PG backup
after I reconfigure the PG original server?

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#3Adrian Klaver
adrian.klaver@aklaver.com
In reply to: Edilmar LISTAS (#1)
Re: Doubts about replication from many servers

On 10/21/2016 08:09 AM, Edilmar LISTAS wrote:

Hi,

I have 4 PG servers where each one runs many databases.

Now, I would like to create just one PG backup server to replicate all
the databases from 4 PG servers, is it possible? Or Do I need to create
4 PG backup servers?

More information is needed:

1) Are all 4 PG servers the same version, on the same OS, same chip
architecture?

2) What replication method do you want to use?

And if some PG server goes down, how to recovery the system from PG
backup after I reconfigure the PG original server?

--
Adrian Klaver
adrian.klaver@aklaver.com

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#4Edilmar LISTAS
edilista@intersite.com.br
In reply to: Adrian Klaver (#3)
Re: Doubts about replication from many servers

Em 21-10-2016 13:48, Adrian Klaver escreveu:

On 10/21/2016 08:09 AM, Edilmar LISTAS wrote:

Hi,

I have 4 PG servers where each one runs many databases.

Now, I would like to create just one PG backup server to replicate all
the databases from 4 PG servers, is it possible? Or Do I need to create
4 PG backup servers?

More information is needed:

1) Are all 4 PG servers the same version, on the same OS, same chip
architecture?

Right, 4 PG main servers with same version/OS/arch.

2) What replication method do you want to use?

Just to create a backup "big" PG server.
I think the suggestion from Walter Cachique in another message about to
use one different port for each backup server, and configure 4 backups
may be a good solution.

And if some PG server goes down, how to recovery the system from PG
backup after I reconfigure the PG original server?

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