On 15 September 2017 at 11:46, milist ujang <ujang(dot)milist(at)gmail(dot)com> wrote:
> Hi Craig,
>
> Thanks again for pointing to inactive replication slot.
> After inactive replication slot been dropped, the relfrozenxid now moving.
>
> I wonder if replication identifier will have some issue if left
> un-chained? since at other side there are inactive replication identifier.
>
No, that's harmless.
However, if there's still an "other side" at all, you presumably have
broken replication.
--
Craig Ringer http://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Training & Services