Re: "Multiple table synchronizations are processed serially" still happens

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От Guillaume Lelarge
Тема Re: "Multiple table synchronizations are processed serially" still happens
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Msg-id CAECtzeU6zoVs-b0KkWj4QJgn=iV-nWXHBRdWwjLVwBgByCbJ=A@mail.gmail.com
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Ответ на Re: "Multiple table synchronizations are processed serially" still happens  (Guillaume Lelarge <guillaume@lelarge.info>)
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Le mer. 28 avr. 2021 à 11:37, Guillaume Lelarge <guillaume@lelarge.info> a écrit :
Le mer. 28 avr. 2021 à 11:12, Guillaume Lelarge <guillaume@lelarge.info> a écrit :
Hi,

One of my customers has an issue with logical replication. As $SUBJECT says, multiple table synchronization happens serially. To be honest, it doesn't do this every time. It happens when the tables are big enough.


This thread was closed by a commit (https://git.postgresql.org/gitweb/?p=postgresql.git;a=commitdiff;h=6c2003f8a1bbc7c192a2e83ec51581c018aa162f) which apparently fixed the issue for the OP.

Attached is a small test case where it still happens for me on 12.6, 11.11, and 10.16. I can't make it happen on 13.2. I don't know why. It may imply bigger tables for 13.2, but why? I simply don't know.


Actually, it also happens on 13.2.


Ping? :)

It's been two weeks and no answer as far as I can tell. I may have missed something on this issue but I don't see what. It's not a big deal, but I would rather understand what's going on.

Thanks.


--
Guillaume.

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