Re: Optionally automatically disable logical replication subscriptions on error - Mailing list pgsql-hackers

From Masahiko Sawada
Subject Re: Optionally automatically disable logical replication subscriptions on error
Date
Msg-id CAD21AoBZuXfWDv9h_owJv88-9-t1_hwnUAxtnkLh6fznfBJx0w@mail.gmail.com
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In response to Re: Optionally automatically disable logical replication subscriptions on error  (Amit Kapila <amit.kapila16@gmail.com>)
Responses Re: Optionally automatically disable logical replication subscriptions on error
List pgsql-hackers
On Wed, Mar 9, 2022 at 12:37 PM Amit Kapila <amit.kapila16@gmail.com> wrote:
>
> On Wed, Mar 9, 2022 at 6:29 AM Masahiko Sawada <sawada.mshk@gmail.com> wrote:
> >
> > ---
> > It might have already been discussed but the worker disables the
> > subscription on an error but doesn't work for a fatal. Is that
> > expected or should we handle that too?
> >
>
> I am not too sure about handling FATALs with this feature because this
> is mainly to aid in resolving conflicts due to various constraints. It
> might be okay to retry in case of FATAL which is possibly due to some
> system resource error. OTOH, if we see that it will be good to disable
> for a FATAL error as well then I think we can use
> PG_ENSURE_ERROR_CLEANUP construct. What do you think?

I think that since FATAL raised by logical replication workers (e.g.,
terminated by DDL or out of memory etc?) is normally not a repeatable
error, it's reasonable to retry in this case.

Regards,

-- 
Masahiko Sawada
EDB:  https://www.enterprisedb.com/



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