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From: Hayato Kuroda (Fujitsu) <[email protected]>
To: 'Dilip Kumar' <[email protected]>
To: Zhijie Hou (Fujitsu) <[email protected]>
Cc: Alexander Korotkov <[email protected]>
Cc: Amit Kapila <[email protected]>
Cc: Vitaly Davydov <[email protected]>
Cc: Tom Lane <[email protected]>
Cc: Alexander Lakhin <[email protected]>
Cc: pgsql-hackers <[email protected]>
Cc: Masahiko Sawada <[email protected]>
Cc: [email protected] <[email protected]>
Cc: vignesh C <[email protected]>
Subject: RE: Slot's restart_lsn may point to removed WAL segment after hard restart unexpectedly
Date: Wed, 25 Jun 2025 07:48:43 +0000
Message-ID: <OSCPR01MB149660EB8A874AC3AE777C658F57BA@OSCPR01MB14966.jpnprd01.prod.outlook.com> (raw)
In-Reply-To: <CAFiTN-uGkrCDi9kqXJqLB+3ATn_ZULmRER73VhkLSDSAnO8SNg@mail.gmail.com>
References: <OS0PR01MB5716BB506AF934376FF3A8BB947BA@OS0PR01MB5716.jpnprd01.prod.outlook.com>
	<CAFiTN-uGkrCDi9kqXJqLB+3ATn_ZULmRER73VhkLSDSAnO8SNg@mail.gmail.com>

Dear Dilip,

Another idea is to call ReplicationSlotsComputeRequiredLSN() when at least one
of the restart_lsn is updated, like attached. I feel this could reduce the computation
bit more.


Best regards,
Hayato Kuroda
FUJITSU LIMITED



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  Subject: RE: Slot's restart_lsn may point to removed WAL segment after hard restart unexpectedly
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