Re: subscription/015_stream sometimes breaks
Amit Kapila <amit.kapila16@gmail.com>
From: Amit Kapila <amit.kapila16@gmail.com>
To: Alvaro Herrera <alvherre@alvh.no-ip.org>
Cc: "Zhijie Hou (Fujitsu)" <houzj.fnst@fujitsu.com>,
Thomas Munro <thomas.munro@gmail.com>, pgsql-hackers <pgsql-hackers@postgresql.org>
Date: 2023-08-25T10:15:17Z
Lists: pgsql-hackers
On Thu, Aug 24, 2023 at 3:48 PM Amit Kapila <amit.kapila16@gmail.com> wrote: > > On Thu, Aug 24, 2023 at 1:20 PM Alvaro Herrera <alvherre@alvh.no-ip.org> wrote: > > > > On 2023-Aug-24, Amit Kapila wrote: > > > > > On Wed, Aug 23, 2023 at 1:31 PM Alvaro Herrera <alvherre@alvh.no-ip.org> wrote: > > > > > > Hmm, I think if worker->in_use is false, we shouldn't consult the rest > > > > of the struct at all, so I propose to add the attached 0001 as a minimal > > > > fix. > > > > > > I think that way we may need to add the check for in_use before > > > accessing each of the LogicalRepWorker struct fields or form some rule > > > about which fields (or places) are okay to access without checking > > > in_use field. > > > > As far as I realize, we have that rule already. It's only a few > > relatively new places that have broken it. I understand that the in_use > > concept comes from the one of the same name in ReplicationSlot, except > > that it is not at all documented in worker_internal.h. > > > > So I propose we do both: apply Zhijie's patch and my 0001 now; and > > somebody gets to document the locking design for LogicalRepWorker. > > > > Agreed. > Pushed both the patches. -- With Regards, Amit Kapila.
Commits
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Reset the logical worker type while cleaning up other worker info.
- 9c13b6814ac7 17.0 landed
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Simplify determining logical replication worker types.
- 2a8b40e36819 17.0 cited