Re: Add WAL read stats to pg_stat_wal

From: Andres Freund <andres(at)anarazel(dot)de>
To: Kyotaro Horiguchi <horikyota(dot)ntt(at)gmail(dot)com>
Cc: bharath(dot)rupireddyforpostgres(at)gmail(dot)com, pgsql-hackers(at)lists(dot)postgresql(dot)org
Subject: Re: Add WAL read stats to pg_stat_wal
Date: 2023-02-20 16:29:06
Message-ID: 20230220162906.huut34qghbkwbial@awork3.anarazel.de
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Hi,

On 2023-02-20 14:21:39 +0900, Kyotaro Horiguchi wrote:
> I totally agree that it will be useful, but I'm not quite sure how
> checkpointer would be able to let postmaster know about that state
> without requiring access to shared memory.

SendPostmasterSignal(PMSIGNAL_SHUTDOWN_CHECKPOINT_COMPLETE);
or such.

Greetings,

Andres Freund

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