Re: Setting up replication from 9.4 to 10.4

Thanks Andreas,

pglogical seems really great.
My knowledge of replication was frozen at the time of Slony II and PG 8.4,
I didn't have the chance to use replication since that time.
I'll give a look at pglogical !

Best regards

Lionel

2018-06-06 8:40 GMT+02:00 Andreas Kretschmer <andreas(at)a-kretschmer(dot)de>:

>
>
> Am 06.06.2018 um 08:16 schrieb Lionel Tressens:
>
>> Hello,
>>
>> We are running a single PG 9.4 database node we are switching to PG 10.4
>> (which will run as master + setup of a slave)
>>
>> To minimize downtime when switching from the 9.4 server to the 10.4 one,
>> I would like to setup a replication stream instead of stopping the
>> production, dumping 9.4 and restoring in 10.4 which my take a lot of time.
>>
>> The next steps would be to reinstall the 9.4 server from scratch with
>> 10.4 and setup this host as a slave, ready to take the master role if
>> needed (hot standby).
>>
>> Can such a replication be established between 9.4 and 10.4 and what
>> replication tool/schema to use ? I have been through the documentation on
>> replication in 9.4 and 10.4 but things are very confusing to me about this
>> point.
>>
>>
> you can't use the in-build streaming replication between different major
> versions, but you can use trigger-based replications, for instance londiste
> or slony.
>
> You can also use use our extension pglogical, see
> https://www.2ndquadrant.com/en/resources/pglogical/. If i were you i
> would use the latter ;-)
>
>
> Regards, Andreas
>
> --
> 2ndQuadrant - The PostgreSQL Support Company.
> www.2ndQuadrant.com
>
>
>

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