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Re: [HACKERS] logical replication and PANIC during shutdowncheckpoint in publisher - Mailing list pgsql-hackers

From Peter Eisentraut
Subject Re: [HACKERS] logical replication and PANIC during shutdowncheckpoint in publisher
Date
Msg-id ab7b629b-d7db-f4be-517e-660115301e7a@2ndquadrant.com
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In response to Re: [HACKERS] logical replication and PANIC during shutdowncheckpoint in publisher  (Michael Paquier <michael.paquier@gmail.com>)
Responses Re: [HACKERS] logical replication and PANIC during shutdowncheckpoint in publisher  (Michael Paquier <michael.paquier@gmail.com>)
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On 5/2/17 03:43, Michael Paquier wrote:
>> I don't think the code covers all because a) the SQL queries are not
>> covered at all that I can see and b) logical decoding can theoretically
>> do HOT pruning (even if the chance is really small) so it's not safe to
>> start logical replication either.
> 
> Ahhh. So START_REPLICATION can also now generate WAL. Good to know.

And just looking at pg_current_wal_location(), running BASE_BACKUP also
advances the WAL.

-- 
Peter Eisentraut              http://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services

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