templates/postgresql.12.conf.j2

   1 # {{ ansible_managed }}
   2 # -----------------------------
   3 # PostgreSQL configuration file
   4 # -----------------------------
   5 #
   6 # This file consists of lines of the form:
   7 #
   8 #   name = value
   9 #
  10 # (The "=" is optional.)  Whitespace may be used.  Comments are introduced with
  11 # "#" anywhere on a line.  The complete list of parameter names and allowed
  12 # values can be found in the PostgreSQL documentation.
  13 #
  14 # The commented-out settings shown in this file represent the default values.
  15 # Re-commenting a setting is NOT sufficient to revert it to the default value;
  16 # you need to reload the server.
  17 #
  18 # This file is read on server startup and when the server receives a SIGHUP
  19 # signal.  If you edit the file on a running system, you have to SIGHUP the
  20 # server for the changes to take effect, run "pg_ctl reload", or execute
  21 # "SELECT pg_reload_conf()".  Some parameters, which are marked below,
  22 # require a server shutdown and restart to take effect.
  23 #
  24 # Any parameter can also be given as a command-line option to the server, e.g.,
  25 # "postgres -c log_connections=on".  Some parameters can be changed at run time
  26 # with the "SET" SQL command.
  27 #
  28 # Memory units:  kB = kilobytes        Time units:  ms  = milliseconds
  29 #                MB = megabytes                     s   = seconds
  30 #                GB = gigabytes                     min = minutes
  31 #                TB = terabytes                     h   = hours
  32 #                                                   d   = days
  33
  34
  35 #------------------------------------------------------------------------------
  36 # FILE LOCATIONS
  37 #------------------------------------------------------------------------------
  38
  39 # The default values of these variables are driven from the -D command-line
  40 # option or PGDATA environment variable, represented here as ConfigDir.
  41
  42 data_directory = '/var/lib/postgresql/{{ postgres_version }}/{{ postgres_cluster_name }}'               # use data in another directory
  43                                         # (change requires restart)
  44 hba_file = '/etc/postgresql/{{ postgres_version }}/{{ postgres_cluster_name }}/pg_hba.conf'     # host-based authentication file
  45                                         # (change requires restart)
  46 ident_file = '/etc/postgresql/{{ postgres_version }}/{{ postgres_cluster_name }}/pg_ident.conf' # ident configuration file
  47                                         # (change requires restart)
  48
  49 # If external_pid_file is not explicitly set, no extra PID file is written.
  50 external_pid_file = '/var/run/postgresql/{{ postgres_version }}-{{ postgres_cluster_name }}.pid'                # write an extra PID file
  51                                         # (change requires restart)
  52
  53
  54 #------------------------------------------------------------------------------
  55 # CONNECTIONS AND AUTHENTICATION
  56 #------------------------------------------------------------------------------
  57
  58 # - Connection Settings -
  59
  60 listen_addresses = '{{ postgres_listen_addresses | reject("none") | join(",") }}' # what IP address(es) to listen on;
  61                                         # comma-separated list of addresses;
  62                                         # defaults to 'localhost'; use '*' for all
  63                                         # (change requires restart)
  64 port = {{ postgres_port }}                              # (change requires restart)
  65 max_connections = 400                   # (change requires restart)
  66 #superuser_reserved_connections = 3     # (change requires restart)
  67 unix_socket_directories = '/var/run/postgresql' # comma-separated list of directories
  68                                         # (change requires restart)
  69 #unix_socket_group = ''                 # (change requires restart)
  70 #unix_socket_permissions = 0777         # begin with 0 to use octal notation
  71                                         # (change requires restart)
  72 #bonjour = off                          # advertise server via Bonjour
  73                                         # (change requires restart)
  74 #bonjour_name = ''                      # defaults to the computer name
  75                                         # (change requires restart)
  76
  77 # - TCP settings -
  78 # see "man 7 tcp" for details
  79
  80 #tcp_keepalives_idle = 0                # TCP_KEEPIDLE, in seconds;
  81                                         # 0 selects the system default
  82 #tcp_keepalives_interval = 0            # TCP_KEEPINTVL, in seconds;
  83                                         # 0 selects the system default
  84 #tcp_keepalives_count = 0               # TCP_KEEPCNT;
  85                                         # 0 selects the system default
  86 #tcp_user_timeout = 0                   # TCP_USER_TIMEOUT, in milliseconds;
  87                                         # 0 selects the system default
  88
  89 # - Authentication -
  90
  91 #authentication_timeout = 1min          # 1s-600s
  92 #password_encryption = md5              # md5 or scram-sha-256
  93 #db_user_namespace = off
  94
  95 # GSSAPI using Kerberos
  96 #krb_server_keyfile = ''
  97 #krb_caseins_users = off
  98
  99 # - SSL -
 100
 101 ssl = on
 102 #ssl_ca_file = ''
 103 #ssl_cert_file = '/etc/ssl/certs/ssl-cert-snakeoil.pem'
 104 #ssl_crl_file = ''
 105 #ssl_key_file = '/etc/ssl/private/ssl-cert-snakeoil.key'
 106 #ssl_ciphers = 'HIGH:MEDIUM:+3DES:!aNULL' # allowed SSL ciphers
 107 #ssl_prefer_server_ciphers = on
 108 #ssl_ecdh_curve = 'prime256v1'
 109 #ssl_min_protocol_version = 'TLSv1'
 110 #ssl_max_protocol_version = ''
 111 #ssl_dh_params_file = ''
 112 #ssl_passphrase_command = ''
 113 #ssl_passphrase_command_supports_reload = off
 114
 115
 116 #------------------------------------------------------------------------------
 117 # RESOURCE USAGE (except WAL)
 118 #------------------------------------------------------------------------------
 119
 120 # - Memory -
 121
 122 {% if ansible_memtotal_mb > 65536 %}
 123 shared_buffers = 16GB                   # min 128kB
 124 {% else %}
 125 shared_buffers = {{ ansible_memtotal_mb // 4 }}MB                       # min 128kB
 126 {% endif %}
 127                                         # (change requires restart)
 128 #huge_pages = try                       # on, off, or try
 129                                         # (change requires restart)
 130 temp_buffers = 24MB                     # min 800kB
 131 #max_prepared_transactions = 0          # zero disables the feature
 132                                         # (change requires restart)
 133 # Caution: it is not advisable to set max_prepared_transactions nonzero unless
 134 # you actively intend to use prepared transactions.
 135 work_mem = 512MB                                # min 64kB
 136 maintenance_work_mem = 1024MB           # min 1MB
 137 #autovacuum_work_mem = -1               # min 1MB, or -1 to use maintenance_work_mem
 138 #max_stack_depth = 2MB                  # min 100kB
 139 #shared_memory_type = mmap              # the default is the first option
 140                                         # supported by the operating system:
 141                                         #   mmap
 142                                         #   sysv
 143                                         #   windows
 144                                         # (change requires restart)
 145 dynamic_shared_memory_type = posix      # the default is the first option
 146                                         # supported by the operating system:
 147                                         #   posix
 148                                         #   sysv
 149                                         #   windows
 150                                         #   mmap
 151                                         # (change requires restart)
 152
 153 # - Disk -
 154
 155 #temp_file_limit = -1                   # limits per-process temp file space
 156                                         # in kB, or -1 for no limit
 157
 158 # - Kernel Resources -
 159
 160 #max_files_per_process = 1000           # min 25
 161                                         # (change requires restart)
 162
 163 # - Cost-Based Vacuum Delay -
 164
 165 #vacuum_cost_delay = 0                  # 0-100 milliseconds (0 disables)
 166 #vacuum_cost_page_hit = 1               # 0-10000 credits
 167 #vacuum_cost_page_miss = 10             # 0-10000 credits
 168 #vacuum_cost_page_dirty = 20            # 0-10000 credits
 169 #vacuum_cost_limit = 200                # 1-10000 credits
 170
 171 # - Background Writer -
 172
 173 bgwriter_delay = 2000ms                 # 10-10000ms between rounds
 174 #bgwriter_lru_maxpages = 100            # max buffers written/round, 0 disables
 175 #bgwriter_lru_multiplier = 2.0          # 0-10.0 multiplier on buffers scanned/round
 176 #bgwriter_flush_after = 512kB           # measured in pages, 0 disables
 177
 178 # - Asynchronous Behavior -
 179
 180 #effective_io_concurrency = 1           # 1-1000; 0 disables prefetching
 181 #max_worker_processes = 8               # (change requires restart)
 182 #max_parallel_maintenance_workers = 2   # taken from max_parallel_workers
 183 #max_parallel_workers_per_gather = 2    # taken from max_parallel_workers
 184 #parallel_leader_participation = on
 185 #max_parallel_workers = 8               # maximum number of max_worker_processes that
 186                                         # can be used in parallel operations
 187 #old_snapshot_threshold = -1            # 1min-60d; -1 disables; 0 is immediate
 188                                         # (change requires restart)
 189 #backend_flush_after = 0                # measured in pages, 0 disables
 190
 191
 192 #------------------------------------------------------------------------------
 193 # WRITE-AHEAD LOG
 194 #------------------------------------------------------------------------------
 195
 196 # - Settings -
 197
 198 wal_level = {{ postgres_wal_level }}                    # minimal, replica, or logical
 199                                         # (change requires restart)
 200 {% if postgres_fsync_enabled %}
 201 #fsync = on                             # flush data to disk for crash safety
 202                                         # (turning this off can cause
 203                                         # unrecoverable data corruption)
 204 #synchronous_commit = on                # synchronization level;
 205                                         # off, local, remote_write, remote_apply, or on
 206 {% else %}
 207 fsync = off                             # turns forced synchronization on or off
 208 synchronous_commit = off                # synchronization level;
 209 {% endif %}
 210 #wal_sync_method = fsync                # the default is the first option
 211                                         # supported by the operating system:
 212                                         #   open_datasync
 213                                         #   fdatasync (default on Linux)
 214                                         #   fsync
 215                                         #   fsync_writethrough
 216                                         #   open_sync
 217 #full_page_writes = on                  # recover from partial page writes
 218 #wal_compression = off                  # enable compression of full-page writes
 219 wal_log_hints = on                      # also do full page writes of non-critical updates
 220                                         # (change requires restart)
 221 #wal_init_zero = on                     # zero-fill new WAL files
 222 #wal_recycle = on                       # recycle WAL files
 223 #wal_buffers = -1                       # min 32kB, -1 sets based on shared_buffers
 224                                         # (change requires restart)
 225 #wal_writer_delay = 200ms               # 1-10000 milliseconds
 226 #wal_writer_flush_after = 1MB           # measured in pages, 0 disables
 227
 228 #commit_delay = 0                       # range 0-100000, in microseconds
 229 #commit_siblings = 5                    # range 1-1000
 230
 231 # - Checkpoints -
 232
 233 #checkpoint_timeout = 5min              # range 30s-1d
 234 max_wal_size = 1GB
 235 min_wal_size = 80MB
 236 #checkpoint_completion_target = 0.5     # checkpoint target duration, 0.0 - 1.0
 237 #checkpoint_flush_after = 256kB         # measured in pages, 0 disables
 238 #checkpoint_warning = 30s               # 0 disables
 239
 240 # - Archiving -
 241
 242 {% if postgres_archive_enabled %}
 243 archive_mode = on
 244 archive_command = 'rsync -a %p barman@{{ postgres_barman_server }}:/var/lib/barman/{{ barman_directory }}/incoming/%f'
 245 {% else %}
 246 archive_mode = off
 247 archive_command = ''
 248 {% endif %}
 249
 250 #archive_mode = off             # enables archiving; off, on, or always
 251                                 # (change requires restart)
 252 #archive_command = ''           # command to use to archive a logfile segment
 253                                 # placeholders: %p = path of file to archive
 254                                 #               %f = file name only
 255                                 # e.g. 'test ! -f /mnt/server/archivedir/%f && cp %p /mnt/server/archivedir/%f'
 256 #archive_timeout = 0            # force a logfile segment switch after this
 257                                 # number of seconds; 0 disables
 258
 259 # - Archive Recovery -
 260
 261 # These are only used in recovery mode.
 262
 263 {% if postgres_primary %}
 264 {# In PG < 12 versions all the recovery settings were in a separate recovery.conf file #}
 265 restore_command = '/usr/bin/barman-wal-restore --user barman --parallel 8 {{ postgres_barman_server }} {{ postgres_primary.restore_directory }} %f %p'          # command to use to restore an archived logfile segment
 266                                 # placeholders: %p = path of file to restore
 267                                 #               %f = file name only
 268                                 # e.g. 'cp /mnt/server/archivedir/%f %p'
 269                                 # (change requires restart)
 270 {% else %}
 271 #restore_command = ''           # command to use to restore an archived logfile segment
 272                                 # placeholders: %p = path of file to restore
 273                                 #               %f = file name only
 274                                 # e.g. 'cp /mnt/server/archivedir/%f %p'
 275                                 # (change requires restart)
 276 {% endif %}
 277 #archive_cleanup_command = ''   # command to execute at every restartpoint
 278 #recovery_end_command = ''      # command to execute at completion of recovery
 279
 280 # - Recovery Target -
 281
 282 # Set these only when performing a targeted recovery.
 283
 284 #recovery_target = ''           # 'immediate' to end recovery as soon as a
 285                                 # consistent state is reached
 286                                 # (change requires restart)
 287 #recovery_target_name = ''      # the named restore point to which recovery will proceed
 288                                 # (change requires restart)
 289 #recovery_target_time = ''      # the time stamp up to which recovery will proceed
 290                                 # (change requires restart)
 291 #recovery_target_xid = ''       # the transaction ID up to which recovery will proceed
 292                                 # (change requires restart)
 293 #recovery_target_lsn = ''       # the WAL LSN up to which recovery will proceed
 294                                 # (change requires restart)
 295 #recovery_target_inclusive = on # Specifies whether to stop:
 296                                 # just after the specified recovery target (on)
 297                                 # just before the recovery target (off)
 298                                 # (change requires restart)
 299 {% if postgres_primary %}
 300 {# In PG < 12 versions all the recovery settings were in a separate recovery.conf file #}
 301 recovery_target_timeline='latest'       # 'current', 'latest', or timeline ID
 302                                 # (change requires restart)
 303 {% else %}
 304 #recovery_target_timeline = 'latest'    # 'current', 'latest', or timeline ID
 305                                 # (change requires restart)
 306 {% endif %}
 307 #recovery_target_action = 'pause'       # 'pause', 'promote', 'shutdown'
 308                                 # (change requires restart)
 309
 310 #------------------------------------------------------------------------------
 311 # REPLICATION
 312 #------------------------------------------------------------------------------
 313
 314 # - Sending Servers -
 315
 316 # Set these on the master and on any standby that will send replication data.
 317
 318 #max_wal_senders = 10           # max number of walsender processes
 319                                 # (change requires restart)
 320 wal_keep_segments = 16          # in logfile segments; 0 disables
 321 #wal_sender_timeout = 60s       # in milliseconds; 0 disables
 322
 323 {% if postgres_max_replication_slots is defined %}
 324 max_replication_slots = {{ postgres_max_replication_slots }} # max number of replication slots
 325 {% else %}
 326 #max_replication_slots = 10     # max number of replication slots
 327 {% endif %}
 328                                 # (change requires restart)
 329 #track_commit_timestamp = off   # collect timestamp of transaction commit
 330                                 # (change requires restart)
 331
 332 # - Master Server -
 333
 334 # These settings are ignored on a standby server.
 335
 336 #synchronous_standby_names = '' # standby servers that provide sync rep
 337                                 # method to choose sync standbys, number of sync standbys,
 338                                 # and comma-separated list of application_name
 339                                 # from standby(s); '*' = all
 340 #vacuum_defer_cleanup_age = 0   # number of xacts by which cleanup is delayed
 341
 342 # - Standby Servers -
 343
 344 # These settings are ignored on a master server.
 345
 346 {% if postgres_primary %}
 347 {# In PG < 12 versions this setting was defined in separate recovery.conf file #}
 348 primary_conninfo = 'host={{ postgres_primary.host }} port={{ postgres_primary.port }} user={{ postgres_primary.replication_user }} password={{ postgres_primary.replication_password }} sslmode=require'                        # connection string to sending server
 349                                         # (change requires restart)
 350 {% else %}
 351 #primary_conninfo = ''                  # connection string to sending server
 352                                         # (change requires restart)
 353 {% endif %}
 354 #primary_slot_name = ''                 # replication slot on sending server
 355                                         # (change requires restart)
 356 {% if postgres_primary %}
 357 {# In PG < 12 versions this setting was defined in separate recovery.conf file #}
 358 promote_trigger_file = '/var/lib/postgresql/{{ postgres_version }}/{{ postgres_cluster_name }}/failover.trigger'                # file name whose presence ends recovery
 359 {% else %}
 360 #promote_trigger_file = ''              # file name whose presence ends recovery
 361 {% endif %}
 362 hot_standby = on                        # "off" disallows queries during recovery
 363                                         # (change requires restart)
 364 #max_standby_archive_delay = 30s        # max delay before canceling queries
 365                                         # when reading WAL from archive;
 366                                         # -1 allows indefinite delay
 367 max_standby_streaming_delay = {{ postgres_extra_config.max_standby_streaming_delay | default('600s') }} # max delay before canceling queries
 368                                         # when reading streaming WAL;
 369                                         # -1 allows indefinite delay
 370 #wal_receiver_status_interval = 10s     # send replies at least this often
 371                                         # 0 disables
 372 #hot_standby_feedback = off             # send info from standby to prevent
 373                                         # query conflicts
 374 #wal_receiver_timeout = 60s             # time that receiver waits for
 375                                         # communication from master
 376                                         # in milliseconds; 0 disables
 377 #wal_retrieve_retry_interval = 5s       # time to wait before retrying to
 378                                         # retrieve WAL after a failed attempt
 379 #recovery_min_apply_delay = 0           # minimum delay for applying changes during recovery
 380
 381 # - Subscribers -
 382
 383 # These settings are ignored on a publisher.
 384
 385 #max_logical_replication_workers = 4    # taken from max_worker_processes
 386                                         # (change requires restart)
 387 #max_sync_workers_per_subscription = 2  # taken from max_logical_replication_workers
 388
 389
 390 #------------------------------------------------------------------------------
 391 # QUERY TUNING
 392 #------------------------------------------------------------------------------
 393
 394 # - Planner Method Configuration -
 395
 396 #enable_bitmapscan = on
 397 #enable_hashagg = on
 398 #enable_hashjoin = on
 399 #enable_indexscan = on
 400 #enable_indexonlyscan = on
 401 #enable_material = on
 402 #enable_mergejoin = on
 403 #enable_nestloop = on
 404 #enable_parallel_append = on
 405 #enable_seqscan = on
 406 #enable_sort = on
 407 #enable_tidscan = on
 408 #enable_partitionwise_join = off
 409 #enable_partitionwise_aggregate = off
 410 #enable_parallel_hash = on
 411 #enable_partition_pruning = on
 412
 413 # - Planner Cost Constants -
 414
 415 #seq_page_cost = 1.0                    # measured on an arbitrary scale
 416 {% if postgres_specific_random_page_cost is defined -%}
 417 # Random page cost is an arbitrary value relative to the seq_page_cost conf (default 1.0)
 418 # On SSD disk it is better to lower the default value from 4.0 to 1.0 for instance.
 419 random_page_cost = {{ postgres_specific_random_page_cost }}                     # same scale as above
 420 {% else -%}
 421 #random_page_cost = 4.0                 # same scale as above
 422 {% endif %}
 423 #cpu_tuple_cost = 0.01                  # same scale as above
 424 #cpu_index_tuple_cost = 0.005           # same scale as above
 425 #cpu_operator_cost = 0.0025             # same scale as above
 426 #parallel_tuple_cost = 0.1              # same scale as above
 427 #parallel_setup_cost = 1000.0   # same scale as above
 428
 429 #jit_above_cost = 100000                # perform JIT compilation if available
 430                                         # and query more expensive than this;
 431                                         # -1 disables
 432 #jit_inline_above_cost = 500000         # inline small functions if query is
 433                                         # more expensive than this; -1 disables
 434 #jit_optimize_above_cost = 500000       # use expensive JIT optimizations if
 435                                         # query is more expensive than this;
 436                                         # -1 disables
 437
 438 #min_parallel_table_scan_size = 8MB
 439 #min_parallel_index_scan_size = 512kB
 440 #effective_cache_size = 4GB
 441 effective_cache_size = {{ ansible_memtotal_mb // 2 }}MB
 442
 443 # - Genetic Query Optimizer -
 444
 445 #geqo = on
 446 #geqo_threshold = 12
 447 #geqo_effort = 5                        # range 1-10
 448 #geqo_pool_size = 0                     # selects default based on effort
 449 #geqo_generations = 0                   # selects default based on effort
 450 #geqo_selection_bias = 2.0              # range 1.5-2.0
 451 #geqo_seed = 0.0                        # range 0.0-1.0
 452
 453 # - Other Planner Options -
 454
 455 #default_statistics_target = 100        # range 1-10000
 456 #constraint_exclusion = partition       # on, off, or partition
 457 #cursor_tuple_fraction = 0.1            # range 0.0-1.0
 458 #from_collapse_limit = 8
 459 #join_collapse_limit = 8                # 1 disables collapsing of explicit
 460                                         # JOIN clauses
 461 #force_parallel_mode = off
 462 #jit = on                               # allow JIT compilation
 463 #plan_cache_mode = auto                 # auto, force_generic_plan or
 464                                         # force_custom_plan
 465
 466
 467 #------------------------------------------------------------------------------
 468 # REPORTING AND LOGGING
 469 #------------------------------------------------------------------------------
 470
 471 # - Where to Log -
 472
 473 #log_destination = 'stderr'             # Valid values are combinations of
 474                                         # stderr, csvlog, syslog, and eventlog,
 475                                         # depending on platform.  csvlog
 476                                         # requires logging_collector to be on.
 477
 478 # This is used when logging to stderr:
 479 #logging_collector = off                # Enable capturing of stderr and csvlog
 480                                         # into log files. Required to be on for
 481                                         # csvlogs.
 482                                         # (change requires restart)
 483
 484 # These are only used if logging_collector is on:
 485 #log_directory = 'log'                  # directory where log files are written,
 486                                         # can be absolute or relative to PGDATA
 487 #log_filename = 'postgresql-%Y-%m-%d_%H%M%S.log'        # log file name pattern,
 488                                         # can include strftime() escapes
 489 #log_file_mode = 0600                   # creation mode for log files,
 490                                         # begin with 0 to use octal notation
 491 #log_truncate_on_rotation = off         # If on, an existing log file with the
 492                                         # same name as the new log file will be
 493                                         # truncated rather than appended to.
 494                                         # But such truncation only occurs on
 495                                         # time-driven rotation, not on restarts
 496                                         # or size-driven rotation.  Default is
 497                                         # off, meaning append to existing files
 498                                         # in all cases.
 499 #log_rotation_age = 1d                  # Automatic rotation of logfiles will
 500                                         # happen after that time.  0 disables.
 501 #log_rotation_size = 10MB               # Automatic rotation of logfiles will
 502                                         # happen after that much log output.
 503                                         # 0 disables.
 504
 505 # These are relevant when logging to syslog:
 506 #syslog_facility = 'LOCAL0'
 507 #syslog_ident = 'postgres'
 508 #syslog_sequence_numbers = on
 509 #syslog_split_messages = on
 510
 511 # This is only relevant when logging to eventlog (win32):
 512 # (change requires restart)
 513 #event_source = 'PostgreSQL'
 514
 515 # - When to Log -
 516
 517 #log_min_messages = warning             # values in order of decreasing detail:
 518                                         #   debug5
 519                                         #   debug4
 520                                         #   debug3
 521                                         #   debug2
 522                                         #   debug1
 523                                         #   info
 524                                         #   notice
 525                                         #   warning
 526                                         #   error
 527                                         #   log
 528                                         #   fatal
 529                                         #   panic
 530
 531 #log_min_error_statement = error        # values in order of decreasing detail:
 532                                         #   debug5
 533                                         #   debug4
 534                                         #   debug3
 535                                         #   debug2
 536                                         #   debug1
 537                                         #   info
 538                                         #   notice
 539                                         #   warning
 540                                         #   error
 541                                         #   log
 542                                         #   fatal
 543                                         #   panic (effectively off)
 544
 545 log_min_duration_statement = 10000      # -1 is disabled, 0 logs all statements
 546                                         # and their durations, > 0 logs only
 547                                         # statements running at least this number
 548                                         # of milliseconds
 549
 550 #log_transaction_sample_rate = 0.0      # Fraction of transactions whose statements
 551                                         # are logged regardless of their duration. 1.0 logs all
 552                                         # statements from all transactions, 0.0 never logs.
 553
 554 # - What to Log -
 555
 556 #debug_print_parse = off
 557 #debug_print_rewritten = off
 558 #debug_print_plan = off
 559 #debug_pretty_print = on
 560 #log_checkpoints = off
 561 #log_connections = off
 562 #log_disconnections = off
 563 #log_duration = off
 564 #log_error_verbosity = default          # terse, default, or verbose messages
 565 #log_hostname = off
 566
 567 log_line_prefix = '{{ postgres_log_line_prefix }}'
 568 #log_line_prefix = '%m [%p] %q%u@%d '   # special values:
 569                                         #   %a = application name
 570                                         #   %u = user name
 571                                         #   %d = database name
 572                                         #   %r = remote host and port
 573                                         #   %h = remote host
 574                                         #   %p = process ID
 575                                         #   %t = timestamp without milliseconds
 576                                         #   %m = timestamp with milliseconds
 577                                         #   %n = timestamp with milliseconds (as a Unix epoch)
 578                                         #   %i = command tag
 579                                         #   %e = SQL state
 580                                         #   %c = session ID
 581                                         #   %l = session line number
 582                                         #   %s = session start timestamp
 583                                         #   %v = virtual transaction ID
 584                                         #   %x = transaction ID (0 if none)
 585                                         #   %q = stop here in non-session
 586                                         #        processes
 587                                         #   %% = '%'
 588                                         # e.g. '<%u%%%d> '
 589 #log_lock_waits = off                   # log lock waits >= deadlock_timeout
 590 #log_statement = 'none'                 # none, ddl, mod, all
 591 #log_replication_commands = off
 592 #log_temp_files = -1                    # log temporary files equal or larger
 593                                         # than the specified size in kilobytes;
 594                                         # -1 disables, 0 logs all temp files
 595 log_timezone = 'UTC'
 596
 597 #------------------------------------------------------------------------------
 598 # PROCESS TITLE
 599 #------------------------------------------------------------------------------
 600
 601 cluster_name = '{{ postgres_version }}/{{ postgres_cluster_name }}'                     # added to process titles if nonempty
 602                                         # (change requires restart)
 603 #update_process_title = on
 604
 605
 606 #------------------------------------------------------------------------------
 607 # STATISTICS
 608 #------------------------------------------------------------------------------
 609
 610 # - Query and Index Statistics Collector -
 611
 612 #track_activities = on
 613 #track_counts = on
 614 #track_io_timing = off
 615 #track_functions = none                 # none, pl, all
 616 #track_activity_query_size = 1024       # (change requires restart)
 617 stats_temp_directory = '/var/run/postgresql/{{ postgres_version }}-{{ postgres_cluster_name }}.pg_stat_tmp'
 618
 619
 620 # - Monitoring -
 621
 622 #log_parser_stats = off
 623 #log_planner_stats = off
 624 #log_executor_stats = off
 625 #log_statement_stats = off
 626
 627
 628 #------------------------------------------------------------------------------
 629 # AUTOVACUUM
 630 #------------------------------------------------------------------------------
 631
 632 #autovacuum = on                        # Enable autovacuum subprocess?  'on'
 633                                         # requires track_counts to also be on.
 634 #log_autovacuum_min_duration = -1       # -1 disables, 0 logs all actions and
 635                                         # their durations, > 0 logs only
 636                                         # actions running at least this number
 637                                         # of milliseconds.
 638 #autovacuum_max_workers = 3             # max number of autovacuum subprocesses
 639                                         # (change requires restart)
 640 #autovacuum_naptime = 1min              # time between autovacuum runs
 641 #autovacuum_vacuum_threshold = 50       # min number of row updates before
 642                                         # vacuum
 643 #autovacuum_analyze_threshold = 50      # min number of row updates before
 644                                         # analyze
 645 #autovacuum_vacuum_scale_factor = 0.2   # fraction of table size before vacuum
 646 #autovacuum_analyze_scale_factor = 0.1  # fraction of table size before analyze
 647 #autovacuum_freeze_max_age = 200000000  # maximum XID age before forced vacuum
 648                                         # (change requires restart)
 649 #autovacuum_multixact_freeze_max_age = 400000000        # maximum multixact age
 650                                         # before forced vacuum
 651                                         # (change requires restart)
 652 #autovacuum_vacuum_cost_delay = 2ms     # default vacuum cost delay for
 653                                         # autovacuum, in milliseconds;
 654                                         # -1 means use vacuum_cost_delay
 655 #autovacuum_vacuum_cost_limit = -1      # default vacuum cost limit for
 656                                         # autovacuum, -1 means use
 657                                         # vacuum_cost_limit
 658
 659
 660 #------------------------------------------------------------------------------
 661 # CLIENT CONNECTION DEFAULTS
 662 #------------------------------------------------------------------------------
 663
 664 # - Statement Behavior -
 665
 666 #client_min_messages = notice           # values in order of decreasing detail:
 667                                         #   debug5
 668                                         #   debug4
 669                                         #   debug3
 670                                         #   debug2
 671                                         #   debug1
 672                                         #   log
 673                                         #   notice
 674                                         #   warning
 675                                         #   error
 676 #search_path = '"$user", public'        # schema names
 677 #row_security = on
 678 #default_tablespace = ''                # a tablespace name, '' uses the default
 679 #temp_tablespaces = ''                  # a list of tablespace names, '' uses
 680                                         # only default tablespace
 681 #default_table_access_method = 'heap'
 682 #check_function_bodies = on
 683 #default_transaction_isolation = 'read committed'
 684 #default_transaction_read_only = off
 685 #default_transaction_deferrable = off
 686 #session_replication_role = 'origin'
 687 #statement_timeout = 0                  # in milliseconds, 0 is disabled
 688 #lock_timeout = 0                       # in milliseconds, 0 is disabled
 689 #idle_in_transaction_session_timeout = 0        # in milliseconds, 0 is disabled
 690 #vacuum_freeze_min_age = 50000000
 691 #vacuum_freeze_table_age = 150000000
 692 #vacuum_multixact_freeze_min_age = 5000000
 693 #vacuum_multixact_freeze_table_age = 150000000
 694 #vacuum_cleanup_index_scale_factor = 0.1        # fraction of total number of tuples
 695                                                 # before index cleanup, 0 always performs
 696                                                 # index cleanup
 697 #bytea_output = 'hex'                   # hex, escape
 698 #xmlbinary = 'base64'
 699 #xmloption = 'content'
 700 #gin_fuzzy_search_limit = 0
 701 #gin_pending_list_limit = 4MB
 702
 703 # - Locale and Formatting -
 704
 705 datestyle = '{{ postgres_datestyle }}'
 706 #intervalstyle = 'postgres'
 707 #timezone = '(defaults to server environment setting)'
 708 {% if postgres_timezone is defined %}
 709 timezone = '{{ postgres_timezone }}'
 710 {% endif %}
 711 #timezone_abbreviations = 'Default'     # Select the set of available time zone
 712                                         # abbreviations.  Currently, there are
 713                                         #   Default
 714                                         #   Australia (historical usage)
 715                                         #   India
 716                                         # You can create your own file in
 717                                         # share/timezonesets/.
 718 #extra_float_digits = 1                 # min -15, max 3; any value >0 actually
 719                                         # selects precise output mode
 720 #client_encoding = sql_ascii            # actually, defaults to database
 721                                         # encoding
 722
 723 # These settings are initialized by initdb, but they can be changed.
 724 lc_messages = '{{ postgres_locale_system }}'    # locale for system error message
 725                                         # strings
 726 lc_monetary = '{{ postgres_locale_formats }}'   # locale for monetary formatting
 727 lc_numeric = '{{ postgres_locale_formats }}'    # locale for number formatting
 728 lc_time = '{{ postgres_locale_formats }}'       # locale for time formatting
 729
 730 # default configuration for text search
 731 default_text_search_config = '{{ postgres_text_search_config }}'
 732
 733 # - Shared Library Preloading -
 734
 735 #shared_preload_libraries = ''          # (change requires restart)
 736 #local_preload_libraries = ''
 737 #session_preload_libraries = ''
 738 #jit_provider = 'llvmjit'               # JIT library to use
 739
 740 # - Other Defaults -
 741
 742 #dynamic_library_path = '$libdir'
 743
 744
 745 #------------------------------------------------------------------------------
 746 # LOCK MANAGEMENT
 747 #------------------------------------------------------------------------------
 748
 749 #deadlock_timeout = 1s
 750 #max_locks_per_transaction = 64         # min 10
 751                                         # (change requires restart)
 752 #max_pred_locks_per_transaction = 64    # min 10
 753                                         # (change requires restart)
 754 #max_pred_locks_per_relation = -2       # negative values mean
 755                                         # (max_pred_locks_per_transaction
 756                                         #  / -max_pred_locks_per_relation) - 1
 757 #max_pred_locks_per_page = 2            # min 0
 758
 759
 760 #------------------------------------------------------------------------------
 761 # VERSION AND PLATFORM COMPATIBILITY
 762 #------------------------------------------------------------------------------
 763
 764 # - Previous PostgreSQL Versions -
 765
 766 #array_nulls = on
 767 #backslash_quote = safe_encoding        # on, off, or safe_encoding
 768 #escape_string_warning = on
 769 #lo_compat_privileges = off
 770 #operator_precedence_warning = off
 771 #quote_all_identifiers = off
 772 #standard_conforming_strings = on
 773 #synchronize_seqscans = on
 774
 775 # - Other Platforms and Clients -
 776
 777 #transform_null_equals = off
 778
 779
 780 #------------------------------------------------------------------------------
 781 # ERROR HANDLING
 782 #------------------------------------------------------------------------------
 783
 784 #exit_on_error = off                    # terminate session on any error?
 785 #restart_after_crash = on               # reinitialize after backend crash?
 786 #data_sync_retry = off                  # retry or panic on failure to fsync
 787                                         # data?
 788                                         # (change requires restart)
 789
 790
 791 #------------------------------------------------------------------------------
 792 # CONFIG FILE INCLUDES
 793 #------------------------------------------------------------------------------
 794
 795 # These options allow settings to be loaded from files other than the
 796 # default postgresql.conf.  Note that these are directives, not variable
 797 # assignments, so they can usefully be given more than once.
 798
 799 include_dir = 'conf.d'                  # include files ending in '.conf' from
 800                                         # a directory, e.g., 'conf.d'
 801 #include_if_exists = '...'              # include file only if it exists
 802 #include = '...'                        # include file
 803
 804
 805 #------------------------------------------------------------------------------
 806 # CUSTOMIZED OPTIONS
 807 #------------------------------------------------------------------------------
 808
 809 # Add settings for extensions here