source: trunk/doc-expressolivre/debian/arqs-conf/etc/postgresql/8.3/main/postgresql.conf @ 685

Revision 685, 16.3 KB checked in by niltonneto, 15 years ago (diff)

Resolve #425

  • Property svn:executable set to *
Line 
1# -----------------------------
2# PostgreSQL configuration file
3# -----------------------------
4#
5# This file consists of lines of the form:
6#
7#   name = value
8#
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.
12#
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.
16#
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
21# take effect.
22#
23# Any parameter can also be given as a command-line option to the server, e.g.,
24# "postgres -c log_connections=on".  Some paramters can be changed at run time
25# with the "SET" SQL command.
26#
27# Memory units:  kB = kilobytes MB = megabytes GB = gigabytes
28# Time units:    ms = milliseconds s = seconds min = minutes h = hours d = days
29
30
31#------------------------------------------------------------------------------
32# FILE LOCATIONS
33#------------------------------------------------------------------------------
34
35# The default values of these variables are driven from the -D command-line
36# option or PGDATA environment variable, represented here as ConfigDir.
37
38data_directory = '/var/lib/postgresql/8.3/main'         # use data in another directory
39                                        # (change requires restart)
40hba_file = '/etc/postgresql/8.3/main/pg_hba.conf'       # host-based authentication file
41                                        # (change requires restart)
42ident_file = '/etc/postgresql/8.3/main/pg_ident.conf'   # ident configuration file
43                                        # (change requires restart)
44
45# If external_pid_file is not explicitly set, no extra PID file is written.
46external_pid_file = '/var/run/postgresql/8.3-main.pid'          # write an extra PID file
47                                        # (change requires restart)
48
49
50#------------------------------------------------------------------------------
51# CONNECTIONS AND AUTHENTICATION
52#------------------------------------------------------------------------------
53
54# - Connection Settings -
55
56#listen_addresses = 'localhost'         # what IP address(es) to listen on;
57                                        # comma-separated list of addresses;
58                                        # defaults to 'localhost', '*' = all
59                                        # (change requires restart)
60port = 5432                             # (change requires restart)
61max_connections = 100                   # (change requires restart)
62# Note:  Increasing max_connections costs ~400 bytes of shared memory per
63# connection slot, plus lock space (see max_locks_per_transaction).  You might
64# also need to raise shared_buffers to support more connections.
65#superuser_reserved_connections = 3     # (change requires restart)
66unix_socket_directory = '/var/run/postgresql'           # (change requires restart)
67#unix_socket_group = ''                 # (change requires restart)
68#unix_socket_permissions = 0777         # begin with 0 to use octal notation
69                                        # (change requires restart)
70#bonjour_name = ''                      # defaults to the computer name
71                                        # (change requires restart)
72
73# - Security and Authentication -
74
75#authentication_timeout = 1min          # 1s-600s
76ssl = true                              # (change requires restart)
77#ssl_ciphers = 'ALL:!ADH:!LOW:!EXP:!MD5:@STRENGTH'      # allowed SSL ciphers
78                                        # (change requires restart)
79#password_encryption = on
80#db_user_namespace = off
81
82# Kerberos and GSSAPI
83#krb_server_keyfile = ''                # (change requires restart)
84#krb_srvname = 'postgres'               # (change requires restart, Kerberos only)
85#krb_server_hostname = ''               # empty string matches any keytab entry
86                                        # (change requires restart, Kerberos only)
87#krb_caseins_users = off                # (change requires restart)
88#krb_realm = ''                         # (change requires restart)
89
90# - TCP Keepalives -
91# see "man 7 tcp" for details
92
93#tcp_keepalives_idle = 0                # TCP_KEEPIDLE, in seconds;
94                                        # 0 selects the system default
95#tcp_keepalives_interval = 0            # TCP_KEEPINTVL, in seconds;
96                                        # 0 selects the system default
97#tcp_keepalives_count = 0               # TCP_KEEPCNT;
98                                        # 0 selects the system default
99
100
101#------------------------------------------------------------------------------
102# RESOURCE USAGE (except WAL)
103#------------------------------------------------------------------------------
104
105# - Memory -
106
107shared_buffers = 24MB                   # min 128kB or max_connections*16kB
108                                        # (change requires restart)
109#temp_buffers = 8MB                     # min 800kB
110#max_prepared_transactions = 5          # can be 0 or more
111                                        # (change requires restart)
112# Note:  Increasing max_prepared_transactions costs ~600 bytes of shared memory
113# per transaction slot, plus lock space (see max_locks_per_transaction).
114#work_mem = 1MB                         # min 64kB
115#maintenance_work_mem = 16MB            # min 1MB
116#max_stack_depth = 2MB                  # min 100kB
117
118# - Free Space Map -
119
120max_fsm_pages = 153600                  # min max_fsm_relations*16, 6 bytes each
121                                        # (change requires restart)
122#max_fsm_relations = 1000               # min 100, ~70 bytes each
123                                        # (change requires restart)
124
125# - Kernel Resource Usage -
126
127#max_files_per_process = 1000           # min 25
128                                        # (change requires restart)
129#shared_preload_libraries = ''          # (change requires restart)
130
131# - Cost-Based Vacuum Delay -
132
133#vacuum_cost_delay = 0                  # 0-1000 milliseconds
134#vacuum_cost_page_hit = 1               # 0-10000 credits
135#vacuum_cost_page_miss = 10             # 0-10000 credits
136#vacuum_cost_page_dirty = 20            # 0-10000 credits
137#vacuum_cost_limit = 200                # 1-10000 credits
138
139# - Background Writer -
140
141#bgwriter_delay = 200ms                 # 10-10000ms between rounds
142#bgwriter_lru_maxpages = 100            # 0-1000 max buffers written/round
143#bgwriter_lru_multiplier = 2.0          # 0-10.0 multipler on buffers scanned/round
144
145
146#------------------------------------------------------------------------------
147# WRITE AHEAD LOG
148#------------------------------------------------------------------------------
149
150# - Settings -
151
152fsync = on                              # turns forced synchronization on or off
153#synchronous_commit = on                # immediate fsync at commit
154#wal_sync_method = fsync                # the default is the first option
155                                        # supported by the operating system:
156                                        #   open_datasync
157                                        #   fdatasync
158                                        #   fsync
159                                        #   fsync_writethrough
160                                        #   open_sync
161#full_page_writes = on                  # recover from partial page writes
162#wal_buffers = 64kB                     # min 32kB
163                                        # (change requires restart)
164#wal_writer_delay = 200ms               # 1-10000 milliseconds
165
166#commit_delay = 0                       # range 0-100000, in microseconds
167#commit_siblings = 5                    # range 1-1000
168
169# - Checkpoints -
170
171checkpoint_segments = 10                # in logfile segments, min 1, 16MB each
172checkpoint_timeout = 5min               # range 30s-1h
173#checkpoint_completion_target = 0.5     # checkpoint target duration, 0.0 - 1.0
174checkpoint_warning = 30s                # 0 is off
175
176# - Archiving -
177
178#archive_mode = off             # allows archiving to be done
179                                # (change requires restart)
180#archive_command = ''           # command to use to archive a logfile segment
181#archive_timeout = 0            # force a logfile segment switch after this
182                                # time; 0 is off
183
184
185#------------------------------------------------------------------------------
186# QUERY TUNING
187#------------------------------------------------------------------------------
188
189# - Planner Method Configuration -
190
191#enable_bitmapscan = on
192#enable_hashagg = on
193#enable_hashjoin = on
194#enable_indexscan = on
195#enable_mergejoin = on
196#enable_nestloop = on
197#enable_seqscan = on
198#enable_sort = on
199#enable_tidscan = on
200
201# - Planner Cost Constants -
202
203#seq_page_cost = 1.0                    # measured on an arbitrary scale
204#random_page_cost = 4.0                 # same scale as above
205#cpu_tuple_cost = 0.01                  # same scale as above
206#cpu_index_tuple_cost = 0.005           # same scale as above
207#cpu_operator_cost = 0.0025             # same scale as above
208#effective_cache_size = 128MB
209
210# - Genetic Query Optimizer -
211
212#geqo = on
213#geqo_threshold = 12
214#geqo_effort = 5                        # range 1-10
215#geqo_pool_size = 0                     # selects default based on effort
216#geqo_generations = 0                   # selects default based on effort
217#geqo_selection_bias = 2.0              # range 1.5-2.0
218
219# - Other Planner Options -
220
221#default_statistics_target = 10         # range 1-1000
222#constraint_exclusion = off
223#from_collapse_limit = 8
224#join_collapse_limit = 8                # 1 disables collapsing of explicit
225                                        # JOIN clauses
226
227
228#------------------------------------------------------------------------------
229# ERROR REPORTING AND LOGGING
230#------------------------------------------------------------------------------
231
232# - Where to Log -
233
234#log_destination = 'stderr'             # Valid values are combinations of
235                                        # stderr, csvlog, syslog and eventlog,
236                                        # depending on platform.  csvlog
237                                        # requires logging_collector to be on.
238
239# This is used when logging to stderr:
240#logging_collector = off                # Enable capturing of stderr and csvlog
241                                        # into log files. Required to be on for
242                                        # csvlogs.
243                                        # (change requires restart)
244
245# These are only used if logging_collector is on:
246#log_directory = 'pg_log'               # directory where log files are written,
247                                        # can be absolute or relative to PGDATA
248#log_filename = 'postgresql-%Y-%m-%d_%H%M%S.log'        # log file name pattern,
249                                        # can include strftime() escapes
250#log_truncate_on_rotation = off         # If on, an existing log file of the
251                                        # same name as the new log file will be
252                                        # truncated rather than appended to.
253                                        # But such truncation only occurs on
254                                        # time-driven rotation, not on restarts
255                                        # or size-driven rotation.  Default is
256                                        # off, meaning append to existing files
257                                        # in all cases.
258#log_rotation_age = 1d                  # Automatic rotation of logfiles will
259                                        # happen after that time.  0 to disable.
260#log_rotation_size = 10MB               # Automatic rotation of logfiles will
261                                        # happen after that much log output.
262                                        # 0 to disable.
263
264# These are relevant when logging to syslog:
265#syslog_facility = 'LOCAL0'
266#syslog_ident = 'postgres'
267
268
269# - When to Log -
270
271#client_min_messages = notice           # values in order of decreasing detail:
272                                        #   debug5
273                                        #   debug4
274                                        #   debug3
275                                        #   debug2
276                                        #   debug1
277                                        #   log
278                                        #   notice
279                                        #   warning
280                                        #   error
281
282#log_min_messages = notice              # values in order of decreasing detail:
283                                        #   debug5
284                                        #   debug4
285                                        #   debug3
286                                        #   debug2
287                                        #   debug1
288                                        #   info
289                                        #   notice
290                                        #   warning
291                                        #   error
292                                        #   log
293                                        #   fatal
294                                        #   panic
295
296#log_error_verbosity = default          # terse, default, or verbose messages
297
298#log_min_error_statement = error        # values in order of decreasing detail:
299                                        #   debug5
300                                        #   debug4
301                                        #   debug3
302                                        #   debug2
303                                        #   debug1
304                                        #   info
305                                        #   notice
306                                        #   warning
307                                        #   error
308                                        #   log
309                                        #   fatal
310                                        #   panic (effectively off)
311
312#log_min_duration_statement = -1        # -1 is disabled, 0 logs all statements
313                                        # and their durations, > 0 logs only
314                                        # statements running at least this time.
315
316#silent_mode = off                      # DO NOT USE without syslog or
317                                        # logging_collector
318                                        # (change requires restart)
319
320# - What to Log -
321
322#debug_print_parse = off
323#debug_print_rewritten = off
324#debug_print_plan = off
325#debug_pretty_print = off
326#log_checkpoints = off
327#log_connections = off
328#log_disconnections = off
329#log_duration = off
330#log_hostname = off
331log_line_prefix = '%t '                 # special values:
332                                        #   %u = user name
333                                        #   %d = database name
334                                        #   %r = remote host and port
335                                        #   %h = remote host
336                                        #   %p = process ID
337                                        #   %t = timestamp without milliseconds
338                                        #   %m = timestamp with milliseconds
339                                        #   %i = command tag
340                                        #   %c = session ID
341                                        #   %l = session line number
342                                        #   %s = session start timestamp
343                                        #   %v = virtual transaction ID
344                                        #   %x = transaction ID (0 if none)
345                                        #   %q = stop here in non-session
346                                        #        processes
347                                        #   %% = '%'
348                                        # e.g. '<%u%%%d> '
349#log_lock_waits = off                   # log lock waits >= deadlock_timeout
350#log_statement = 'none'                 # none, ddl, mod, all
351#log_temp_files = -1                    # log temporary files equal or larger
352                                        # than specified size;
353                                        # -1 disables, 0 logs all temp files
354#log_timezone = unknown                 # actually, defaults to TZ environment
355                                        # setting
356
357
358#------------------------------------------------------------------------------
359# RUNTIME STATISTICS
360#------------------------------------------------------------------------------
361
362# - Query/Index Statistics Collector -
363
364#track_activities = on
365track_counts = on
366#update_process_title = on
367
368
369# - Statistics Monitoring -
370
371#log_parser_stats = off
372#log_planner_stats = off
373#log_executor_stats = off
374#log_statement_stats = off
375
376
377#------------------------------------------------------------------------------
378# AUTOVACUUM PARAMETERS
379#------------------------------------------------------------------------------
380
381autovacuum = on                 # Enable autovacuum subprocess?  'on'
382                                        # requires track_counts to also be on.
383#log_autovacuum_min_duration = -1       # -1 disables, 0 logs all actions and
384                                        # their durations, > 0 logs only
385                                        # actions running at least that time.
386#autovacuum_max_workers = 3             # max number of autovacuum subprocesses
387#autovacuum_naptime = 1min              # time between autovacuum runs
388#autovacuum_vacuum_threshold = 50       # min number of row updates before
389                                        # vacuum
390#autovacuum_analyze_threshold = 50      # min number of row updates before
391                                        # analyze
392#autovacuum_vacuum_scale_factor = 0.2   # fraction of table size before vacuum
393#autovacuum_analyze_scale_factor = 0.1  # fraction of table size before analyze
394#autovacuum_freeze_max_age = 200000000  # maximum XID age before forced vacuum
395                                        # (change requires restart)
396#autovacuum_vacuum_cost_delay = 20      # default vacuum cost delay for
397                                        # autovacuum, -1 means use
398                                        # vacuum_cost_delay
399#autovacuum_vacuum_cost_limit = -1      # default vacuum cost limit for
400                                        # autovacuum, -1 means use
401                                        # vacuum_cost_limit
402
403
404#------------------------------------------------------------------------------
405# CLIENT CONNECTION DEFAULTS
406#------------------------------------------------------------------------------
407
408# - Statement Behavior -
409
410#search_path = '"$user",public'         # schema names
411#default_tablespace = ''                # a tablespace name, '' uses the default
412#temp_tablespaces = ''                  # a list of tablespace names, '' uses
413                                        # only default tablespace
414#check_function_bodies = on
415#default_transaction_isolation = 'read committed'
416#default_transaction_read_only = off
417#session_replication_role = 'origin'
418#statement_timeout = 0                  # 0 is disabled
419#vacuum_freeze_min_age = 100000000
420#xmlbinary = 'base64'
421#xmloption = 'content'
422
423# - Locale and Formatting -
424
425#datestyle = 'iso, mdy'
426#timezone = unknown                     # actually, defaults to TZ environment
427                                        # setting
428#timezone_abbreviations = 'Default'     # Select the set of available time zone
429                                        # abbreviations.  Currently, there are
430                                        #   Default
431                                        #   Australia
432                                        #   India
433                                        # You can create your own file in
434                                        # share/timezonesets/.
435#extra_float_digits = 0                 # min -15, max 2
436#client_encoding = sql_ascii            # actually, defaults to database
437                                        # encoding
438
439# These settings are initialized by initdb, but they can be changed.
440#lc_messages = 'en_US.UTF-8'                    # locale for system error message
441                                        # strings
442#lc_monetary = 'en_US.UTF-8'                    # locale for monetary formatting
443#lc_numeric = 'en_US.UTF-8'                     # locale for number formatting
444#lc_time = 'en_US.UTF-8'                                # locale for time formatting
445
446# default configuration for text search
447default_text_search_config = 'pg_catalog.english'
448
449# - Other Defaults -
450
451#explain_pretty_print = on
452#dynamic_library_path = '$libdir'
453#local_preload_libraries = ''
454
455
456#------------------------------------------------------------------------------
457# LOCK MANAGEMENT
458#------------------------------------------------------------------------------
459
460#deadlock_timeout = 1s
461#max_locks_per_transaction = 64         # min 10
462                                        # (change requires restart)
463# Note:  Each lock table slot uses ~270 bytes of shared memory, and there are
464# max_locks_per_transaction * (max_connections + max_prepared_transactions)
465# lock table slots.
466
467
468#------------------------------------------------------------------------------
469# VERSION/PLATFORM COMPATIBILITY
470#------------------------------------------------------------------------------
471
472# - Previous PostgreSQL Versions -
473
474#add_missing_from = off
475#array_nulls = on
476#backslash_quote = safe_encoding        # on, off, or safe_encoding
477#default_with_oids = off
478#escape_string_warning = on
479#regex_flavor = advanced                # advanced, extended, or basic
480#sql_inheritance = on
481#standard_conforming_strings = off
482#synchronize_seqscans = on
483
484# - Other Platforms and Clients -
485
486#transform_null_equals = off
487
488
489#------------------------------------------------------------------------------
490# CUSTOMIZED OPTIONS
491#------------------------------------------------------------------------------
492
493#custom_variable_classes = ''           # list of custom variable class names
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