| From: | "Anton A(dot) Melnikov" <a(dot)melnikov(at)postgrespro(dot)ru> |
|---|---|
| To: | Fujii Masao <masao(dot)fujii(at)oss(dot)nttdata(dot)com>, Alexander Korotkov <aekorotkov(at)gmail(dot)com> |
| Cc: | Magnus Hagander <magnus(at)hagander(dot)net>, "Anton A(dot) Melnikov" <aamelnikov(at)inbox(dot)ru>, Andres Freund <andres(at)anarazel(dot)de>, Kyotaro Horiguchi <horikyota(dot)ntt(at)gmail(dot)com>, pgsql-hackers(at)lists(dot)postgresql(dot)org |
| Subject: | Re: May be BUG. Periodic burst growth of the checkpoint_req counter on replica. |
| Date: | 2024-10-08 14:16:55 |
| Message-ID: | ec71d37f-ce3f-400a-9260-c2a8bf6f43ee@postgrespro.ru |
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| Lists: | pgsql-hackers |
On 08.10.2024 15:42, Fujii Masao wrote:
> On 2024/09/30 12:26, Fujii Masao wrote:
>>>> In 0002.patch, I also modified the description of num_requested from
>>>> "Number of backend requested checkpoints" to remove "backend," as it can
>>>> be confusing since num_requested includes requests from sources other than
>>>> the backend. Thought?
>>>
>>> Agreed. E.g. from xlog. Then maybe changed it also in the function
>>> descriptions in the pg_proc.dat? For pg_stat_get_checkpointer_num_requested()
>>> and pg_stat_get_checkpointer_restartpoints_requested().
>>
>> Yes, good catch!
>
> Patch attached.
Looked at the patch. Just in case, checked that neither
“backend completed” nor “backend requested” were found anywhere else.
All is ok for me.
Thanks a lot!
With the best wishes,
--
Anton A. Melnikov
Postgres Professional: http://www.postgrespro.com
The Russian Postgres Company
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