Christophe Pettus: All Your GUCs in a Row: max_wal_senders

Errata: the max_connections post told you to size that parameter for “the replication connections.” On 12 and later, don’t. WAL senders have their own seats, sized by this parameter, and have not drawn from max_connections since PostgreSQL 12. The rest of that post stands; that clause is wrong fo…

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Christophe Pettus: All Your GUCs in a Row: max_wal_senders · TechNews