max_wal_size and wal_keep_size

From: "James Pang (chaolpan)" <chaolpan(at)cisco(dot)com>
To: "pgsql-admin(at)lists(dot)postgresql(dot)org" <pgsql-admin(at)lists(dot)postgresql(dot)org>
Subject: max_wal_size and wal_keep_size
Date: 2022-08-28 12:45:44
Message-ID: PH0PR11MB5191D04014D2F4F2FD2506BAD6779@PH0PR11MB5191.namprd11.prod.outlook.com
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Hi,
It's PGv13, what's relationship between max_wal_size and wal_keep_size ? For example, wal_keep_size=200GB(to keep enough wal on disk pg_wal) , what's best value for max_wal_size ? we want to usage max_wal_size to control checkpoint .

Thanks,

James

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