Re: Why there are no max_wal_receivers

On 10/07/2013 11:05 PM, 高健 wrote:
> Hello:
>
>
>
> Thank you all for kindly replying my question.
>
>
> I read the documentation about pg_basebackup.
>
>
> The description says:
>
> The server must also be configured with max_wal_senders set high enough
> to leave at least one session available for the backup.
>
> Dose it mean:
>
> If I am building a one master -- one slave environment, I need the
> max_wal_sender to be at least 2.
>
> But I think pg_basebackup just use the one sender process temporarily,
> Is that right?

Well actually it will use at least one and up to two connections, see
-Xs option

>
>
> Best Regards
>
>

--
Adrian Klaver
adrian(dot)klaver(at)gmail(dot)com