Re: Replication with 9.4 - Mailing list pgsql-general

From Madovsky
Subject Re: Replication with 9.4
Date
Msg-id 560FD4A2.2050101@madovsky.org
Whole thread Raw
In response to Re: Replication with 9.4  (Edson Richter <edsonrichter@hotmail.com>)
List pgsql-general

Hi

On 10/3/2015 5:46 AM, Edson Richter wrote:

---- Madovsky escreveu ----

> Hi,
>
> I would like to fix a issue I'm facing of with the version 9.4 streaming
> replication.
> is it possible to set on the fly the synchronous commit on the master
> (or standby?)
> which only sync commit the hot standby node used by the client who has a
> read only sql session on?
> example:
> node1 node2 node3 are hot standby with replication slots (physical) on
> master 1
> node1 has the priority 1 since it's first on the names list
> now a client open a ready only session on node3 and start a transaction
> update

Sorry for my ignorance, but can you start a "transaction update" over a read only connection?

Edson

but
> within this transaction a sql select is done on the hot standby from the
> updated table
>
> thanks
>
> Franck
>
>
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Obviously not, my script open 2 sessions

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