initial commit of v5

deployment/postgres/postgresql.conf

@@ -0,0 +1,122 @@
+# -----------------------------
+# PostgreSQL 18 configuration file
+# Optimized for: 8GB RAM, 6 vCPU, KVM Virtual Machine
+# -----------------------------
+
+# CONNECTIONS AND AUTHENTICATION
+listen_addresses = '*'
+max_connections = 100
+superuser_reserved_connections = 3
+
+# MEMORY SETTINGS
+shared_buffers = 2GB
+huge_pages = try
+effective_cache_size = 6GB
+maintenance_work_mem = 512MB
+work_mem = 20MB
+
+# QUERY TUNING
+random_page_cost = 1.1
+effective_io_concurrency = 200
+default_statistics_target = 100
+
+# WRITE AHEAD LOG (WAL)
+wal_level = replica
+wal_buffers = 16MB
+min_wal_size = 1GB
+max_wal_size = 4GB                 
+wal_compression = on
+checkpoint_completion_target = 0.9
+checkpoint_timeout = 15min
+
+# BACKGROUND WRITER
+bgwriter_delay = 200ms
+bgwriter_lru_maxpages = 100
+bgwriter_lru_multiplier = 2.0
+
+# AUTOVACUUM
+autovacuum = on
+autovacuum_max_workers = 3
+autovacuum_naptime = 1min
+autovacuum_vacuum_threshold = 50
+autovacuum_vacuum_scale_factor = 0.1
+autovacuum_analyze_threshold = 50
+autovacuum_analyze_scale_factor = 0.05
+autovacuum_vacuum_cost_delay = 2ms
+autovacuum_vacuum_cost_limit = 200
+
+# MONITORING AND STATISTICS
+track_activities = on
+track_counts = on
+track_io_timing = on
+track_functions = all
+track_wal_io_timing = on
+compute_query_id = on
+
+# pg_stat_statements configuration
+pg_stat_statements.track = all
+pg_stat_statements.max = 10000
+pg_stat_statements.track_utility = on
+pg_stat_statements.save = on
+
+# LOGGING
+log_destination = 'stderr'
+logging_collector = on
+log_directory = 'log'
+log_filename = 'postgresql-%Y-%m-%d_%H%M%S.log'
+log_file_mode = 0600
+log_rotation_age = 1d
+log_rotation_size = 100MB
+log_truncate_on_rotation = on
+
+# What to log
+log_min_duration_statement = 1000  
+log_line_prefix = '%t [%p]: [%l-1] user=%u,db=%d,app=%a,client=%h '
+log_checkpoints = on
+log_connections = on
+log_disconnections = on
+log_duration = off
+log_lock_waits = on
+log_statement = 'none'             
+log_temp_files = 0
+log_timezone = 'UTC'
+
+# LOCALE AND FORMATTING
+datestyle = 'iso, mdy'
+timezone = 'UTC'
+lc_messages = 'en_US.utf8'
+lc_monetary = 'en_US.utf8'
+lc_numeric = 'en_US.utf8'
+lc_time = 'en_US.utf8'
+default_text_search_config = 'pg_catalog.english'
+
+# LOCK MANAGEMENT
+deadlock_timeout = 1s
+max_locks_per_transaction = 64
+max_pred_locks_per_transaction = 64
+
+# CLIENT CONNECTION DEFAULTS
+search_path = '"$user", public'
+idle_in_transaction_session_timeout = 600000 
+statement_timeout = 0
+
+# PARALLEL QUERY EXECUTION
+max_worker_processes = 6
+max_parallel_workers_per_gather = 3
+max_parallel_workers = 6
+max_parallel_maintenance_workers = 3
+parallel_leader_participation = on
+
+# INCREMENTAL BACKUP
+summarize_wal = on
+
+# VACUUM OPTIMIZATION
+vacuum_buffer_usage_limit = 256kB
+
+# VECTOR EXTENSION SETTINGS
+maintenance_work_mem = 512MB
+max_parallel_maintenance_workers = 3
+work_mem = 32MB
+
+# EXTENSIONS
+shared_preload_libraries = 'pg_stat_statements'