source: trunk/INSTALL/rhel/6/var/lib/pgsql/data/postgresql.conf @ 8137

Revision 8137, 16.6 KB checked in by wmerlotto, 11 years ago (diff)

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[5797]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 parameters can be changed at run time
25# with the "SET" SQL command.
26#
27# Memory units:  kB = kilobytes        Time units:  ms  = milliseconds
28#                MB = megabytes                     s   = seconds
29#                GB = gigabytes                     min = minutes
30#                                                   h   = hours
31#                                                   d   = days
32
33
34#------------------------------------------------------------------------------
35# FILE LOCATIONS
36#------------------------------------------------------------------------------
37
38# The default values of these variables are driven from the -D command-line
39# option or PGDATA environment variable, represented here as ConfigDir.
40
41#data_directory = 'ConfigDir'           # use data in another directory
42                                        # (change requires restart)
43#hba_file = 'ConfigDir/pg_hba.conf'     # host-based authentication file
44                                        # (change requires restart)
45#ident_file = 'ConfigDir/pg_ident.conf' # ident configuration file
46                                        # (change requires restart)
47
48# If external_pid_file is not explicitly set, no extra PID file is written.
49#external_pid_file = '(none)'           # write an extra PID file
50                                        # (change requires restart)
51
52
53#------------------------------------------------------------------------------
54# CONNECTIONS AND AUTHENTICATION
55#------------------------------------------------------------------------------
56
57# - Connection Settings -
58
59listen_addresses = '*'          # what IP address(es) to listen on;
60                                        # comma-separated list of addresses;
61                                        # defaults to 'localhost', '*' = all
62                                        # (change requires restart)
63port = 5432                             # (change requires restart)
64max_connections = 100                   # (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).
67superuser_reserved_connections = 3      # (change requires restart)
68unix_socket_directory = '/tmp'          # (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_name = ''                      # defaults to the computer name
73                                        # (change requires restart)
74
75# - Security and Authentication -
76
77#authentication_timeout = 1min          # 1s-600s
78ssl = off                               # (change requires restart)
79#ssl_ciphers = 'ALL:!ADH:!LOW:!EXP:!MD5:@STRENGTH'      # allowed SSL ciphers
80                                        # (change requires restart)
81#ssl_renegotiation_limit = 512MB        # amount of data between renegotiations
82#password_encryption = on
83#db_user_namespace = off
84
85# Kerberos and GSSAPI
86#krb_server_keyfile = ''
87#krb_srvname = 'postgres'               # (Kerberos only)
88#krb_caseins_users = off
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 = 32MB                   # min 128kB
108                                        # (change requires restart)
109#temp_buffers = 8MB                     # min 800kB
110#max_prepared_transactions = 0          # zero disables the feature
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# It is not advisable to set max_prepared_transactions nonzero unless you
115# actively intend to use prepared transactions.
116#work_mem = 1MB                         # min 64kB
117#maintenance_work_mem = 16MB            # min 1MB
118#max_stack_depth = 2MB                  # min 100kB
119
120# - Kernel Resource Usage -
121
122#max_files_per_process = 1000           # min 25
123                                        # (change requires restart)
124#shared_preload_libraries = ''          # (change requires restart)
125
126# - Cost-Based Vacuum Delay -
127
128#vacuum_cost_delay = 0ms                # 0-100 milliseconds
129#vacuum_cost_page_hit = 1               # 0-10000 credits
130#vacuum_cost_page_miss = 10             # 0-10000 credits
131#vacuum_cost_page_dirty = 20            # 0-10000 credits
132#vacuum_cost_limit = 200                # 1-10000 credits
133
134# - Background Writer -
135
136#bgwriter_delay = 200ms                 # 10-10000ms between rounds
137#bgwriter_lru_maxpages = 100            # 0-1000 max buffers written/round
138#bgwriter_lru_multiplier = 2.0          # 0-10.0 multipler on buffers scanned/round
139
140# - Asynchronous Behavior -
141
142#effective_io_concurrency = 1           # 1-1000. 0 disables prefetching
143
144
145#------------------------------------------------------------------------------
146# WRITE AHEAD LOG
147#------------------------------------------------------------------------------
148
149# - Settings -
150
151#fsync = on                             # turns forced synchronization on or off
152#synchronous_commit = on                # immediate fsync at commit
153#wal_sync_method = fsync                # the default is the first option
154                                        # supported by the operating system:
155                                        #   open_datasync
156                                        #   fdatasync (default on Linux)
157                                        #   fsync
158                                        #   fsync_writethrough
159                                        #   open_sync
160#full_page_writes = on                  # recover from partial page writes
161#wal_buffers = 64kB                     # min 32kB
162                                        # (change requires restart)
163#wal_writer_delay = 200ms               # 1-10000 milliseconds
164
165#commit_delay = 0                       # range 0-100000, in microseconds
166#commit_siblings = 5                    # range 1-1000
167
168# - Checkpoints -
169
170#checkpoint_segments = 3                # in logfile segments, min 1, 16MB each
171#checkpoint_timeout = 5min              # range 30s-1h
172#checkpoint_completion_target = 0.5     # checkpoint target duration, 0.0 - 1.0
173#checkpoint_warning = 30s               # 0 disables
174
175# - Archiving -
176
177#archive_mode = off             # allows archiving to be done
178                                # (change requires restart)
179#archive_command = ''           # command to use to archive a logfile segment
180#archive_timeout = 0            # force a logfile segment switch after this
181                                # number of seconds; 0 disables
182
183
184#------------------------------------------------------------------------------
185# QUERY TUNING
186#------------------------------------------------------------------------------
187
188# - Planner Method Configuration -
189
190#enable_bitmapscan = on
191#enable_hashagg = on
192#enable_hashjoin = on
193#enable_indexscan = on
194#enable_mergejoin = on
195#enable_nestloop = on
196#enable_seqscan = on
197#enable_sort = on
198#enable_tidscan = on
199
200# - Planner Cost Constants -
201
202#seq_page_cost = 1.0                    # measured on an arbitrary scale
203#random_page_cost = 4.0                 # same scale as above
204#cpu_tuple_cost = 0.01                  # same scale as above
205#cpu_index_tuple_cost = 0.005           # same scale as above
206#cpu_operator_cost = 0.0025             # same scale as above
207#effective_cache_size = 128MB
208
209# - Genetic Query Optimizer -
210
211#geqo = on
212#geqo_threshold = 12
213#geqo_effort = 5                        # range 1-10
214#geqo_pool_size = 0                     # selects default based on effort
215#geqo_generations = 0                   # selects default based on effort
216#geqo_selection_bias = 2.0              # range 1.5-2.0
217
218# - Other Planner Options -
219
220#default_statistics_target = 100        # range 1-10000
221#constraint_exclusion = partition       # on, off, or partition
222#cursor_tuple_fraction = 0.1            # range 0.0-1.0
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:
240logging_collector = on                  # 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:
246log_directory = 'pg_log'                # directory where log files are written,
247                                        # can be absolute or relative to PGDATA
248log_filename = 'postgresql-%a.log'      # log file name pattern,
249                                        # can include strftime() escapes
250log_truncate_on_rotation = on           # 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.
258log_rotation_age = 1d                   # Automatic rotation of logfiles will
259                                        # happen after that time.  0 disables.
260log_rotation_size = 0                   # Automatic rotation of logfiles will
261                                        # happen after that much log output.
262                                        # 0 disables.
263
264# These are relevant when logging to syslog:
265#syslog_facility = 'LOCAL0'
266#syslog_ident = 'postgres'
267
268#silent_mode = off                      # Run server silently.
269                                        # DO NOT USE without syslog or
270                                        # logging_collector
271                                        # (change requires restart)
272
273
274# - When to Log -
275
276#client_min_messages = notice           # values in order of decreasing detail:
277                                        #   debug5
278                                        #   debug4
279                                        #   debug3
280                                        #   debug2
281                                        #   debug1
282                                        #   log
283                                        #   notice
284                                        #   warning
285                                        #   error
286
287#log_min_messages = warning             # values in order of decreasing detail:
288                                        #   debug5
289                                        #   debug4
290                                        #   debug3
291                                        #   debug2
292                                        #   debug1
293                                        #   info
294                                        #   notice
295                                        #   warning
296                                        #   error
297                                        #   log
298                                        #   fatal
299                                        #   panic
300
301#log_error_verbosity = default          # terse, default, or verbose messages
302
303#log_min_error_statement = error        # values in order of decreasing detail:
304                                        #   debug5
305                                        #   debug4
306                                        #   debug3
307                                        #   debug2
308                                        #   debug1
309                                        #   info
310                                        #   notice
311                                        #   warning
312                                        #   error
313                                        #   log
314                                        #   fatal
315                                        #   panic (effectively off)
316
317#log_min_duration_statement = -1        # -1 is disabled, 0 logs all statements
318                                        # and their durations, > 0 logs only
319                                        # statements running at least this number
320                                        # of milliseconds
321
322
323# - What to Log -
324
325#debug_print_parse = off
326#debug_print_rewritten = off
327#debug_print_plan = off
328#debug_pretty_print = on
329#log_checkpoints = off
330#log_connections = off
331#log_disconnections = off
332#log_duration = off
333#log_hostname = off
334#log_line_prefix = ''                   # special values:
335                                        #   %u = user name
336                                        #   %d = database name
337                                        #   %r = remote host and port
338                                        #   %h = remote host
339                                        #   %p = process ID
340                                        #   %t = timestamp without milliseconds
341                                        #   %m = timestamp with milliseconds
342                                        #   %i = command tag
343                                        #   %c = session ID
344                                        #   %l = session line number
345                                        #   %s = session start timestamp
346                                        #   %v = virtual transaction ID
347                                        #   %x = transaction ID (0 if none)
348                                        #   %q = stop here in non-session
349                                        #        processes
350                                        #   %% = '%'
351                                        # e.g. '<%u%%%d> '
352#log_lock_waits = off                   # log lock waits >= deadlock_timeout
353log_statement = 'mod'                   # none, ddl, mod, all
354#log_temp_files = -1                    # log temporary files equal or larger
355                                        # than the specified size in kilobytes;
356                                        # -1 disables, 0 logs all temp files
357#log_timezone = unknown                 # actually, defaults to TZ environment
358                                        # setting
359
360
361#------------------------------------------------------------------------------
362# RUNTIME STATISTICS
363#------------------------------------------------------------------------------
364
365# - Query/Index Statistics Collector -
366
367#track_activities = on
368#track_counts = on
369#track_functions = none                 # none, pl, all
370#track_activity_query_size = 1024
371#update_process_title = on
372#stats_temp_directory = 'pg_stat_tmp'
373
374
375# - Statistics Monitoring -
376
377#log_parser_stats = off
378#log_planner_stats = off
379#log_executor_stats = off
380#log_statement_stats = off
381
382
383#------------------------------------------------------------------------------
384# AUTOVACUUM PARAMETERS
385#------------------------------------------------------------------------------
386
387#autovacuum = on                        # Enable autovacuum subprocess?  'on'
388                                        # requires track_counts to also be on.
389#log_autovacuum_min_duration = -1       # -1 disables, 0 logs all actions and
390                                        # their durations, > 0 logs only
391                                        # actions running at least this number
392                                        # of milliseconds.
393#autovacuum_max_workers = 3             # max number of autovacuum subprocesses
394#autovacuum_naptime = 1min              # time between autovacuum runs
395#autovacuum_vacuum_threshold = 50       # min number of row updates before
396                                        # vacuum
397#autovacuum_analyze_threshold = 50      # min number of row updates before
398                                        # analyze
399#autovacuum_vacuum_scale_factor = 0.2   # fraction of table size before vacuum
400#autovacuum_analyze_scale_factor = 0.1  # fraction of table size before analyze
401#autovacuum_freeze_max_age = 200000000  # maximum XID age before forced vacuum
402                                        # (change requires restart)
403#autovacuum_vacuum_cost_delay = 20ms    # default vacuum cost delay for
404                                        # autovacuum, in milliseconds;
405                                        # -1 means use vacuum_cost_delay
406#autovacuum_vacuum_cost_limit = -1      # default vacuum cost limit for
407                                        # autovacuum, -1 means use
408                                        # vacuum_cost_limit
409
410
411#------------------------------------------------------------------------------
412# CLIENT CONNECTION DEFAULTS
413#------------------------------------------------------------------------------
414
415# - Statement Behavior -
416
417#search_path = '"$user",public'         # schema names
418#default_tablespace = ''                # a tablespace name, '' uses the default
419#temp_tablespaces = ''                  # a list of tablespace names, '' uses
420                                        # only default tablespace
421#check_function_bodies = on
422#default_transaction_isolation = 'read committed'
423#default_transaction_read_only = off
424#session_replication_role = 'origin'
425#statement_timeout = 0                  # in milliseconds, 0 is disabled
426#vacuum_freeze_min_age = 50000000
427#vacuum_freeze_table_age = 150000000
428#xmlbinary = 'base64'
429#xmloption = 'content'
430
431# - Locale and Formatting -
432
433datestyle = 'iso, dmy'
434#intervalstyle = 'postgres'
435#timezone = unknown                     # actually, defaults to TZ environment
436                                        # setting
437#timezone_abbreviations = 'Default'     # Select the set of available time zone
438                                        # abbreviations.  Currently, there are
439                                        #   Default
440                                        #   Australia
441                                        #   India
442                                        # You can create your own file in
443                                        # share/timezonesets/.
444#extra_float_digits = 0                 # min -15, max 2
445#client_encoding = sql_ascii            # actually, defaults to database
446                                        # encoding
447
448# These settings are initialized by initdb, but they can be changed.
449lc_messages = 'pt_BR.UTF-8'                     # locale for system error message
450                                        # strings
451lc_monetary = 'pt_BR.UTF-8'                     # locale for monetary formatting
452lc_numeric = 'pt_BR.UTF-8'                      # locale for number formatting
453lc_time = 'pt_BR.UTF-8'                         # locale for time formatting
454
455# default configuration for text search
456default_text_search_config = 'pg_catalog.portuguese'
457
458# - Other Defaults -
459
460#dynamic_library_path = '$libdir'
461#local_preload_libraries = ''
462
463
464#------------------------------------------------------------------------------
465# LOCK MANAGEMENT
466#------------------------------------------------------------------------------
467
468#deadlock_timeout = 1s
469#max_locks_per_transaction = 64         # min 10
470                                        # (change requires restart)
471# Note:  Each lock table slot uses ~270 bytes of shared memory, and there are
472# max_locks_per_transaction * (max_connections + max_prepared_transactions)
473# lock table slots.
474
475
476#------------------------------------------------------------------------------
477# VERSION/PLATFORM COMPATIBILITY
478#------------------------------------------------------------------------------
479
480# - Previous PostgreSQL Versions -
481
482#add_missing_from = off
483#array_nulls = on
484#backslash_quote = safe_encoding        # on, off, or safe_encoding
485#default_with_oids = off
486#escape_string_warning = on
487#regex_flavor = advanced                # advanced, extended, or basic
488#sql_inheritance = on
489#standard_conforming_strings = off
490#synchronize_seqscans = on
491
[8137]492# Necessario para o Expresso
493standard_conforming_strings = off
494bytea_output = 'escape'
495
[5797]496# - Other Platforms and Clients -
497
498#transform_null_equals = off
499
500
501#------------------------------------------------------------------------------
502# CUSTOMIZED OPTIONS
503#------------------------------------------------------------------------------
504
505#custom_variable_classes = ''           # list of custom variable class names
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