| From: | Chao Li <li(dot)evan(dot)chao(at)gmail(dot)com> |
|---|---|
| To: | Masahiko Sawada <sawada(dot)mshk(at)gmail(dot)com> |
| Cc: | Ashutosh Bapat <ashutosh(dot)bapat(dot)oss(at)gmail(dot)com>, Álvaro Herrera <alvherre(at)kurilemu(dot)de>, Postgres hackers <pgsql-hackers(at)lists(dot)postgresql(dot)org> |
| Subject: | Re: Refactor replication origin state reset helpers |
| Date: | 2026-01-28 22:33:49 |
| Message-ID: | FC0501B6-2329-448F-8666-EC9920E9BB0F@gmail.com |
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| Lists: | pgsql-hackers |
> On Jan 29, 2026, at 04:57, Masahiko Sawada <sawada(dot)mshk(at)gmail(dot)com> wrote:
>
> On Fri, Jan 16, 2026 at 4:46 AM Ashutosh Bapat
> <ashutosh(dot)bapat(dot)oss(at)gmail(dot)com> wrote:
>>
>> On Fri, Jan 16, 2026 at 7:37 AM Chao Li <li(dot)evan(dot)chao(at)gmail(dot)com> wrote:
>>>
>>>
>>>
>>> On Jan 15, 2026, at 17:51, Ashutosh Bapat <ashutosh(dot)bapat(dot)oss(at)gmail(dot)com> wrote:
>>>
>>>
>>> Hi Ashutosh,
>>>
>>> Thanks for your review again.
>>>
>>>
>>> On Thu, Jan 15, 2026 at 5:30 AM Chao Li <li(dot)evan(dot)chao(at)gmail(dot)com> wrote:
>>>
>>>
>>> On Thu, Jan 15, 2026 at 2:56 AM Masahiko Sawada <sawada(dot)mshk(at)gmail(dot)com> wrote:
>>>
>>>
>>> On Sun, Jan 11, 2026 at 5:41 PM Chao Li <li(dot)evan(dot)chao(at)gmail(dot)com> wrote:
>>>
>>>
>>> ---
>>> In origin.h:
>>>
>>> +/*
>>> + * Clear the per-transaction replication origin state.
>>> + *
>>> + * replorigin_session_origin is also cleared if clear_origin is set.
>>> + */
>>> +static inline void
>>> +replorigin_xact_clear(bool clear_origin)
>>> +{
>>> + replorigin_xact_state.origin_lsn = InvalidXLogRecPtr;
>>> + replorigin_xact_state.origin_timestamp = 0;
>>> + if (clear_origin)
>>> + replorigin_xact_state.origin = InvalidRepOriginId;
>>> +}
>>>
>>> Why does this function need to move to origin.h from origin.c?
>>>
>>>
>>> That’s because, per Ashutosh’s suggestion, I added two static inline helpers replorigin_xact_set_origin() and replorigin_xact_set_lsn_timestamp(), and I thought replorigin_xact_clear() should stay close with them.
>>>
>>> But looks like they don’t have to be inline as they are not on hot paths. So I moved them all to origin.c and only extern them.
>>>
>>>
>>> I am fine with it being non-static-inline.
>>>
>>> +/*
>>> + * Clear the per-transaction replication origin state.
>>> + *
>>> + * replorigin_session_origin is also cleared if clear_origin is set.
>>> + */
>>> +void
>>> +replorigin_xact_clear(bool clear_origin)
>>>
>>> Nitpick. This file exposes a few functions. The function with name
>>> replogrigin_* deal with replication origin itself. The functions with
>>> name replorigin_session_* deal with the session state of replication
>>> origin. It feels like the new function is dealing with per-transaction
>>> state within a given session. Does it make sense to name it
>>> replorigin_session_xact_clear() instead of replorigin_xact_clear()?
>>> Just a thought.
>>>
>>>
>>> We’ve already gone back and forth on this function for several rounds, so I’d prefer not to make further changes here.
>>>
>>
>> Ok. Let's leave this to committer's judgement.
>>
>>>
>>> Hopefully, v11 is ready to go.
>>
>> I don't have any further comments.
>>
>
> Pushed these patches after adjusting them based on the recent commit
> 1fdbca159e0 (changing RepOrigin -> ReplOrigin).
>
Thank you so much for taking care of this patch. I thought to rebase once you pushed the rename patch, you have handled that for me.
Best regards,
--
Chao Li (Evan)
HighGo Software Co., Ltd.
https://www.highgo.com/
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