| From: | Amit Kapila <amit(dot)kapila16(at)gmail(dot)com> |
|---|---|
| To: | Peter Smith <smithpb2250(at)gmail(dot)com> |
| Cc: | Melih Mutlu <m(dot)melihmutlu(at)gmail(dot)com>, "shiy(dot)fnst(at)fujitsu(dot)com" <shiy(dot)fnst(at)fujitsu(dot)com>, Euler Taveira <euler(at)eulerto(dot)com>, Bharath Rupireddy <bharath(dot)rupireddyforpostgres(at)gmail(dot)com>, Dilip Kumar <dilipbalaut(at)gmail(dot)com>, "osumi(dot)takamichi(at)fujitsu(dot)com" <osumi(dot)takamichi(at)fujitsu(dot)com>, pgsql-hackers <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: Allow logical replication to copy tables in binary format |
| Date: | 2023-03-20 02:13:07 |
| Message-ID: | CAA4eK1LOLmWfi_Nt2xfibqyybXvbH+NMXdDgmtTZ614VLtfpjA@mail.gmail.com |
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| Lists: | pgsql-hackers |
On Mon, Mar 20, 2023 at 3:37 AM Peter Smith <smithpb2250(at)gmail(dot)com> wrote:
>
> There are a couple of TAP tests where the copy binary is expected to
> fail. And when it fails, you do binary=false (changing the format back
> to 'text') so the test is then expected to be able to proceed.
>
> I don't know if this happens in practice, but IIUC in theory, if the
> timing is extremely bad, the tablesync could relaunch in binary mode
> multiple times (any fail multiple times?) before your binary=false
> change takes effect.
>
> So, I was wondering if it could help to use the subscription
> 'disable_on_error=true' parameter for those cases so that the
> tablesync won't needlessly attempt to relaunch until you have set
> binary=false and then re-enabled the subscription.
>
+1. That would make tests more reliable.
--
With Regards,
Amit Kapila.
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