Write-Ahead Logging (WAL) is a critical technique for ensuring database integrity, enabling recovery and consistency by logging changes before they’re applied to the database.
Configuring WAL in PostgreSQL requires careful tuning of parameters such as wal_level and archive_mode to optimize data integrity and replication capabilities.
Monitoring WAL activity through tools like pg_stat_archiver is essential for maintaining database performance and ensuring WAL settings meet operational needs.
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