Dracula: Created page with "This mostly focuses on async streaming replication on Postgres 15. Important notes: * Every transaction is added to a log called a ''write ahead log'' or ''WAL''. * WAL files are transferred from the primary to the secondary. Important config options: * wal_keep_size: # of WAL segments to keep"

2026-04-22T17:46:58Z

Created page with "This mostly focuses on async streaming replication on Postgres 15. Important notes: * Every transaction is added to a log called a ''write ahead log'' or ''WAL''. * WAL files are transferred from the primary to the secondary. Important config options: * wal_keep_size: # of WAL segments to keep"

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This mostly focuses on async streaming replication on Postgres 15.

Important notes:
* Every transaction is added to a log called a ''write ahead log'' or ''WAL''.
* WAL files are transferred from the primary to the secondary.

Important config options:
* wal_keep_size: # of WAL segments to keep

Postgres Replication and HA - Revision history