1 # -----------------------------
2 # PostgreSQL configuration file
3 # -----------------------------
5 # This file consists of lines of the form:
9 # (The "=" is optional.) Whitespace may be used. Comments are introduced with
10 # "#" anywhere on a line. The complete list of parameter names and allowed
11 # values can be found in the PostgreSQL documentation.
13 # The commented-out settings shown in this file represent the default values.
14 # Re-commenting a setting is NOT sufficient to revert it to the default value;
15 # you need to reload the server.
17 # This file is read on server startup and when the server receives a SIGHUP
18 # signal. If you edit the file on a running system, you have to SIGHUP the
19 # server for the changes to take effect, or use "pg_ctl reload". Some
20 # parameters, which are marked below, require a server shutdown and restart to
23 # Any parameter can also be given as a command-line option to the server, e.g.,
24 # "postgres -c log_connections=on". Some parameters can be changed at run time
25 # with the "SET" SQL command.
27 # Memory units: kB = kilobytes Time units: ms = milliseconds
28 # MB = megabytes s = seconds
29 # GB = gigabytes min = minutes
34 #------------------------------------------------------------------------------
36 #------------------------------------------------------------------------------
38 # The default values of these variables are driven from the -D command-line
39 # option or PGDATA environment variable, represented here as ConfigDir.
41 data_directory = '/var/lib/postgresql/9.1/main' # use data in another directory
42 # (change requires restart)
43 hba_file = '/etc/postgresql/9.1/main/pg_hba.conf' # host-based authentication file
44 # (change requires restart)
45 ident_file = '/etc/postgresql/9.1/main/pg_ident.conf' # ident configuration file
46 # (change requires restart)
48 # If external_pid_file is not explicitly set, no extra PID file is written.
49 external_pid_file = '/var/run/postgresql/9.1-main.pid' # write an extra PID file
50 # (change requires restart)
53 #------------------------------------------------------------------------------
54 # CONNECTIONS AND AUTHENTICATION
55 #------------------------------------------------------------------------------
57 # - Connection Settings -
59 listen_addresses = '*' # what IP address(es) to listen on;
60 # comma-separated list of addresses;
61 # defaults to 'localhost', '*' = all
62 # (change requires restart)
63 port = 5432 # (change requires restart)
64 max_connections = 1000 # (change requires restart)
65 # Note: Increasing max_connections costs ~400 bytes of shared memory per
66 # connection slot, plus lock space (see max_locks_per_transaction).
67 #superuser_reserved_connections = 3 # (change requires restart)
68 unix_socket_directory = '/var/run/postgresql' # (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)
77 # - Security and Authentication -
79 #authentication_timeout = 1min # 1s-600s
80 ssl = true # (change requires restart)
81 #ssl_ciphers = 'ALL:!ADH:!LOW:!EXP:!MD5:@STRENGTH' # allowed SSL ciphers
82 # (change requires restart)
83 #ssl_renegotiation_limit = 512MB # amount of data between renegotiations
84 #password_encryption = on
85 #db_user_namespace = off
88 #krb_server_keyfile = ''
89 #krb_srvname = 'postgres' # (Kerberos only)
90 #krb_caseins_users = off
93 # see "man 7 tcp" for details
95 #tcp_keepalives_idle = 0 # TCP_KEEPIDLE, in seconds;
96 # 0 selects the system default
97 #tcp_keepalives_interval = 0 # TCP_KEEPINTVL, in seconds;
98 # 0 selects the system default
99 #tcp_keepalives_count = 0 # TCP_KEEPCNT;
100 # 0 selects the system default
103 #------------------------------------------------------------------------------
104 # RESOURCE USAGE (except WAL)
105 #------------------------------------------------------------------------------
109 shared_buffers = 24MB # min 128kB
110 # (change requires restart)
111 #temp_buffers = 8MB # min 800kB
112 #max_prepared_transactions = 0 # zero disables the feature
113 # (change requires restart)
114 # Note: Increasing max_prepared_transactions costs ~600 bytes of shared memory
115 # per transaction slot, plus lock space (see max_locks_per_transaction).
116 # It is not advisable to set max_prepared_transactions nonzero unless you
117 # actively intend to use prepared transactions.
118 #work_mem = 1MB # min 64kB
119 #maintenance_work_mem = 16MB # min 1MB
120 #max_stack_depth = 2MB # min 100kB
122 # - Kernel Resource Usage -
124 #max_files_per_process = 1000 # min 25
125 # (change requires restart)
126 #shared_preload_libraries = '' # (change requires restart)
128 # - Cost-Based Vacuum Delay -
130 #vacuum_cost_delay = 0ms # 0-100 milliseconds
131 #vacuum_cost_page_hit = 1 # 0-10000 credits
132 #vacuum_cost_page_miss = 10 # 0-10000 credits
133 #vacuum_cost_page_dirty = 20 # 0-10000 credits
134 #vacuum_cost_limit = 200 # 1-10000 credits
136 # - Background Writer -
138 #bgwriter_delay = 200ms # 10-10000ms between rounds
139 #bgwriter_lru_maxpages = 100 # 0-1000 max buffers written/round
140 #bgwriter_lru_multiplier = 2.0 # 0-10.0 multipler on buffers scanned/round
142 # - Asynchronous Behavior -
144 #effective_io_concurrency = 1 # 1-1000. 0 disables prefetching
147 #------------------------------------------------------------------------------
149 #------------------------------------------------------------------------------
153 #wal_level = hot_standby # minimal, archive, or hot_standby
154 # (change requires restart)
155 #fsync = on # turns forced synchronization on or off
156 #synchronous_commit = on # synchronization level; on, off, or local
157 #wal_sync_method = fsync # the default is the first option
158 # supported by the operating system:
160 # fdatasync (default on Linux)
164 #full_page_writes = on # recover from partial page writes
165 #wal_buffers = -1 # min 32kB, -1 sets based on shared_buffers
166 # (change requires restart)
167 #wal_writer_delay = 200ms # 1-10000 milliseconds
169 #commit_delay = 0 # range 0-100000, in microseconds
170 #commit_siblings = 5 # range 1-1000
174 #checkpoint_segments = 3 # in logfile segments, min 1, 16MB each
175 #checkpoint_timeout = 5min # range 30s-1h
176 #checkpoint_completion_target = 0.5 # checkpoint target duration, 0.0 - 1.0
177 #checkpoint_warning = 30s # 0 disables
181 #archive_mode = on # allows archiving to be done
182 # (change requires restart)
183 #archive_command = 'cp -i "%p" /var/lib/postgresql/9.1/archive/"%f" </dev/null' # command to use to archive a logfile segment
184 #archive_timeout = 0 # force a logfile segment switch after this
185 # number of seconds; 0 disables
188 #------------------------------------------------------------------------------
190 #------------------------------------------------------------------------------
194 # These settings are ignored on a standby server
196 #max_wal_senders = 0 # max number of walsender processes
197 # (change requires restart)
198 #wal_sender_delay = 1s # walsender cycle time, 1-10000 milliseconds
199 #wal_keep_segments = 0 # in logfile segments, 16MB each; 0 disables
200 #vacuum_defer_cleanup_age = 0 # number of xacts by which cleanup is delayed
201 #replication_timeout = 60s # in milliseconds; 0 disables
202 #synchronous_standby_names = '' # standby servers that provide sync rep
203 # comma-separated list of application_name
204 # from standby(s); '*' = all
206 # - Standby Servers -
208 # These settings are ignored on a master server
210 hot_standby = on # "on" allows queries during recovery
211 # (change requires restart)
212 #max_standby_archive_delay = 30s # max delay before canceling queries
213 # when reading WAL from archive;
214 # -1 allows indefinite delay
215 #max_standby_streaming_delay = 30s # max delay before canceling queries
216 # when reading streaming WAL;
217 # -1 allows indefinite delay
218 #wal_receiver_status_interval = 10s # send replies at least this often
220 #hot_standby_feedback = off # send info from standby to prevent
224 #------------------------------------------------------------------------------
226 #------------------------------------------------------------------------------
228 # - Planner Method Configuration -
230 #enable_bitmapscan = on
232 #enable_hashjoin = on
233 #enable_indexscan = on
234 #enable_material = on
235 #enable_mergejoin = on
236 #enable_nestloop = on
241 # - Planner Cost Constants -
243 #seq_page_cost = 1.0 # measured on an arbitrary scale
244 #random_page_cost = 4.0 # same scale as above
245 #cpu_tuple_cost = 0.01 # same scale as above
246 #cpu_index_tuple_cost = 0.005 # same scale as above
247 #cpu_operator_cost = 0.0025 # same scale as above
248 #effective_cache_size = 128MB
250 # - Genetic Query Optimizer -
254 #geqo_effort = 5 # range 1-10
255 #geqo_pool_size = 0 # selects default based on effort
256 #geqo_generations = 0 # selects default based on effort
257 #geqo_selection_bias = 2.0 # range 1.5-2.0
258 #geqo_seed = 0.0 # range 0.0-1.0
260 # - Other Planner Options -
262 #default_statistics_target = 100 # range 1-10000
263 #constraint_exclusion = partition # on, off, or partition
264 #cursor_tuple_fraction = 0.1 # range 0.0-1.0
265 #from_collapse_limit = 8
266 #join_collapse_limit = 8 # 1 disables collapsing of explicit
270 #------------------------------------------------------------------------------
271 # ERROR REPORTING AND LOGGING
272 #------------------------------------------------------------------------------
276 #log_destination = 'stderr' # Valid values are combinations of
277 # stderr, csvlog, syslog, and eventlog,
278 # depending on platform. csvlog
279 # requires logging_collector to be on.
281 # This is used when logging to stderr:
282 #logging_collector = off # Enable capturing of stderr and csvlog
283 # into log files. Required to be on for
285 # (change requires restart)
287 # These are only used if logging_collector is on:
288 #log_directory = 'pg_log' # directory where log files are written,
289 # can be absolute or relative to PGDATA
290 #log_filename = 'postgresql-%Y-%m-%d_%H%M%S.log' # log file name pattern,
291 # can include strftime() escapes
292 #log_file_mode = 0600 # creation mode for log files,
293 # begin with 0 to use octal notation
294 #log_truncate_on_rotation = off # If on, an existing log file with the
295 # same name as the new log file will be
296 # truncated rather than appended to.
297 # But such truncation only occurs on
298 # time-driven rotation, not on restarts
299 # or size-driven rotation. Default is
300 # off, meaning append to existing files
302 #log_rotation_age = 1d # Automatic rotation of logfiles will
303 # happen after that time. 0 disables.
304 #log_rotation_size = 10MB # Automatic rotation of logfiles will
305 # happen after that much log output.
308 # These are relevant when logging to syslog:
309 #syslog_facility = 'LOCAL0'
310 #syslog_ident = 'postgres'
312 #silent_mode = off # Run server silently.
313 # DO NOT USE without syslog or
315 # (change requires restart)
320 #client_min_messages = notice # values in order of decreasing detail:
331 #log_min_messages = warning # values in order of decreasing detail:
345 #log_min_error_statement = error # values in order of decreasing detail:
357 # panic (effectively off)
359 #log_min_duration_statement = -1 # -1 is disabled, 0 logs all statements
360 # and their durations, > 0 logs only
361 # statements running at least this number
367 #debug_print_parse = off
368 #debug_print_rewritten = off
369 #debug_print_plan = off
370 #debug_pretty_print = on
371 #log_checkpoints = off
372 #log_connections = off
373 #log_disconnections = off
375 #log_error_verbosity = default # terse, default, or verbose messages
377 log_line_prefix = '%t ' # special values:
378 # %a = application name
381 # %r = remote host and port
384 # %t = timestamp without milliseconds
385 # %m = timestamp with milliseconds
389 # %l = session line number
390 # %s = session start timestamp
391 # %v = virtual transaction ID
392 # %x = transaction ID (0 if none)
393 # %q = stop here in non-session
397 #log_lock_waits = off # log lock waits >= deadlock_timeout
398 #log_statement = 'none' # none, ddl, mod, all
399 #log_temp_files = -1 # log temporary files equal or larger
400 # than the specified size in kilobytes;
401 # -1 disables, 0 logs all temp files
402 #log_timezone = '(defaults to server environment setting)'
405 #------------------------------------------------------------------------------
407 #------------------------------------------------------------------------------
409 # - Query/Index Statistics Collector -
411 #track_activities = on
413 #track_functions = none # none, pl, all
414 #track_activity_query_size = 1024 # (change requires restart)
415 #update_process_title = on
416 #stats_temp_directory = 'pg_stat_tmp'
419 # - Statistics Monitoring -
421 #log_parser_stats = off
422 #log_planner_stats = off
423 #log_executor_stats = off
424 #log_statement_stats = off
427 #------------------------------------------------------------------------------
428 # AUTOVACUUM PARAMETERS
429 #------------------------------------------------------------------------------
431 #autovacuum = on # Enable autovacuum subprocess? 'on'
432 # requires track_counts to also be on.
433 #log_autovacuum_min_duration = -1 # -1 disables, 0 logs all actions and
434 # their durations, > 0 logs only
435 # actions running at least this number
437 #autovacuum_max_workers = 3 # max number of autovacuum subprocesses
438 # (change requires restart)
439 #autovacuum_naptime = 1min # time between autovacuum runs
440 #autovacuum_vacuum_threshold = 50 # min number of row updates before
442 #autovacuum_analyze_threshold = 50 # min number of row updates before
444 #autovacuum_vacuum_scale_factor = 0.2 # fraction of table size before vacuum
445 #autovacuum_analyze_scale_factor = 0.1 # fraction of table size before analyze
446 #autovacuum_freeze_max_age = 200000000 # maximum XID age before forced vacuum
447 # (change requires restart)
448 #autovacuum_vacuum_cost_delay = 20ms # default vacuum cost delay for
449 # autovacuum, in milliseconds;
450 # -1 means use vacuum_cost_delay
451 #autovacuum_vacuum_cost_limit = -1 # default vacuum cost limit for
452 # autovacuum, -1 means use
456 #------------------------------------------------------------------------------
457 # CLIENT CONNECTION DEFAULTS
458 #------------------------------------------------------------------------------
460 # - Statement Behavior -
462 #search_path = '"$user",public' # schema names
463 #default_tablespace = '' # a tablespace name, '' uses the default
464 #temp_tablespaces = '' # a list of tablespace names, '' uses
465 # only default tablespace
466 #check_function_bodies = on
467 #default_transaction_isolation = 'read committed'
468 #default_transaction_read_only = off
469 #default_transaction_deferrable = off
470 #session_replication_role = 'origin'
471 #statement_timeout = 0 # in milliseconds, 0 is disabled
472 #vacuum_freeze_min_age = 50000000
473 #vacuum_freeze_table_age = 150000000
474 #bytea_output = 'hex' # hex, escape
475 #xmlbinary = 'base64'
476 #xmloption = 'content'
478 # - Locale and Formatting -
480 datestyle = 'iso, mdy'
481 #intervalstyle = 'postgres'
482 #timezone = '(defaults to server environment setting)'
483 #timezone_abbreviations = 'Default' # Select the set of available time zone
484 # abbreviations. Currently, there are
488 # You can create your own file in
489 # share/timezonesets/.
490 #extra_float_digits = 0 # min -15, max 3
491 #client_encoding = sql_ascii # actually, defaults to database
494 # These settings are initialized by initdb, but they can be changed.
495 lc_messages = 'en_US.UTF-8' # locale for system error message
497 lc_monetary = 'en_US.UTF-8' # locale for monetary formatting
498 lc_numeric = 'en_US.UTF-8' # locale for number formatting
499 lc_time = 'en_US.UTF-8' # locale for time formatting
501 # default configuration for text search
502 default_text_search_config = 'pg_catalog.english'
506 #dynamic_library_path = '$libdir'
507 #local_preload_libraries = ''
510 #------------------------------------------------------------------------------
512 #------------------------------------------------------------------------------
514 #deadlock_timeout = 1s
515 #max_locks_per_transaction = 64 # min 10
516 # (change requires restart)
517 # Note: Each lock table slot uses ~270 bytes of shared memory, and there are
518 # max_locks_per_transaction * (max_connections + max_prepared_transactions)
520 #max_pred_locks_per_transaction = 64 # min 10
521 # (change requires restart)
523 #------------------------------------------------------------------------------
524 # VERSION/PLATFORM COMPATIBILITY
525 #------------------------------------------------------------------------------
527 # - Previous PostgreSQL Versions -
530 #backslash_quote = safe_encoding # on, off, or safe_encoding
531 #default_with_oids = off
532 #escape_string_warning = on
533 #lo_compat_privileges = off
534 #quote_all_identifiers = off
535 #sql_inheritance = on
536 #standard_conforming_strings = on
537 #synchronize_seqscans = on
539 # - Other Platforms and Clients -
541 #transform_null_equals = off
544 #------------------------------------------------------------------------------
546 #------------------------------------------------------------------------------
548 #exit_on_error = off # terminate session on any error?
549 #restart_after_crash = on # reinitialize after backend crash?
552 #------------------------------------------------------------------------------
554 #------------------------------------------------------------------------------
556 #custom_variable_classes = '' # list of custom variable class names
projects / pgpool-online-recovery / blob