# Conservative production tuning baseline — deliberately NOT hand-tuned to a specific RAM
# allocation before rn-platform-01's real resources are known (Phase 4 instruction: do not
# over-tune before actual hardware exists). Sized for a modest ~4GB Postgres allocation, safe
# defaults everywhere else. Revisit once VM RAM is final — see docs/PHASE4_PRODUCTION_INFRASTRUCTURE.md §11.

shared_buffers = 1GB
effective_cache_size = 3GB
maintenance_work_mem = 256MB
work_mem = 16MB

max_connections = 100

# WAL — safe defaults for a single-instance setup with pg_dump/pg_basebackup-style backups
# (infra/backup/). Not configured for streaming replication (out of scope this phase — see
# docs/BACKUP_DR.md's DR model for why pg_dump + periodic pg_basebackup is the chosen approach,
# not a hot standby).
wal_level = replica
max_wal_size = 2GB
min_wal_size = 512MB
checkpoint_completion_target = 0.9

# Query logging — slow queries only, never full statement logging (would capture bind
# parameters that can include session tokens' hashes / PII in edge cases). See docs/OBSERVABILITY.md.
log_min_duration_statement = 500
log_line_prefix = '%m [%p] %q%u@%d '
log_checkpoints = on
log_connections = on
log_disconnections = on

# Autovacuum stays on defaults — no reason to disable it for this workload size.