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Vous devez avoir un fichier de log de l'installeur. Lui vous indiquera la raison du problème.

# -----------------------------::::
# PostgreSQL configuration file::::
# -----------------------------::::
#::::
# This file consists of lines of the form::::
#::::
#   name = value::::
#::::
# (The "=" is optional.)  Whitespace may be used.  Comments are introduced with::::
# "#" anywhere on a line.  The complete list of parameter names and allowed::::
# values can be found in the PostgreSQL documentation.::::
#::::
# The commented-out settings shown in this file represent the default values.::::
# Re-commenting a setting is NOT sufficient to revert it to the default value;::::
# you need to reload the server.::::
#::::
# This file is read on server startup and when the server receives a SIGHUP::::
# signal.  If you edit the file on a running system, you have to SIGHUP the::::
# server for the changes to take effect, or use "pg_ctl reload".  Some::::
# parameters, which are marked below, require a server shutdown and restart to::::
# take effect.::::
#::::
# Any parameter can also be given as a command-line option to the server, e.g.,::::
# "postgres -c log_connections=on".  Some parameters can be changed at run time::::
# with the "SET" SQL command.::::
#::::
# Memory units:  kB = kilobytes        Time units:  ms  = milliseconds::
#                MB = megabytes                     s   = seconds::::
#                GB = gigabytes                     min = minutes::::
#                                                   h   = hours::::
#                                                   d   = days::::
::::
::::
#------------------------------------------------------------------------------::::
# FILE LOCATIONS::::
#------------------------------------------------------------------------------::::
::::
# The default values of these variables are driven from the -D command-line::::
# option or PGDATA environment variable, represented here as ConfigDir.::::
::::
#data_directory = 'ConfigDir'        # use data in another directory::::
                    # (change requires restart)::::
#hba_file = 'ConfigDir/pg_hba.conf'    # host-based authentication file::::
                    # (change requires restart)::::
#ident_file = 'ConfigDir/pg_ident.conf'    # ident configuration file::::
                    # (change requires restart)::::
::::
# If external_pid_file is not explicitly set, no extra PID file is written.::::
#external_pid_file = '(none)'        # write an extra PID file::::
                    # (change requires restart)::::
::::
::::
#------------------------------------------------------------------------------::::
# CONNECTIONS AND AUTHENTICATION::::
#------------------------------------------------------------------------------::::
::::
# - Connection Settings -::::
::::
listen_addresses = '*'        # what IP address(es) to listen on;::::
                    # comma-separated list of addresses;::::
                    # defaults to 'localhost', '*' = all::::
                    # (change requires restart)::::
#port = 5432                # (change requires restart)::::
#max_connections = 100            # (change requires restart)::::
# Note:  Increasing max_connections costs ~400 bytes of shared memory per :::
# connection slot, plus lock space (see max_locks_per_transaction).::::
#superuser_reserved_connections = 3    # (change requires restart)::::
#unix_socket_directory = ''        # (change requires restart)::::
#unix_socket_group = ''            # (change requires restart)::::
#unix_socket_permissions = 0777        # begin with 0 to use octal notation::::
                    # (change requires restart)::::
#bonjour_name = ''            # defaults to the computer name::::
                    # (change requires restart)::::
::::
# - Security and Authentication -::::
::::
#authentication_timeout = 1min        # 1s-600s::::
#ssl = off                # (change requires restart)::::
#ssl_ciphers = 'ALL:!ADH:!LOW:!EXP:!MD5
                    # (change requires restart)::::
#password_encryption = on::::
#db_user_namespace = off::::
::::
# Kerberos and GSSAPI::::
#krb_server_keyfile = ''::::
#krb_srvname = 'postgres'        # (Kerberos only)::::
#krb_caseins_users = off::::
::::
# - TCP Keepalives -::::
# see "man 7 tcp" for details::::
::::
#tcp_keepalives_idle = 0        # TCP_KEEPIDLE, in seconds;::::
                    # 0 selects the system default::::
#tcp_keepalives_interval = 0        # TCP_KEEPINTVL, in seconds;::::
                    # 0 selects the system default::::
#tcp_keepalives_count = 0        # TCP_KEEPCNT;::::
                    # 0 selects the system default::::
::::
::::
#------------------------------------------------------------------------------::::
# RESOURCE USAGE (except WAL)::::
#------------------------------------------------------------------------------::::
::::
# - Memory -::::
::::
#shared_buffers = 32MB            # min 128kB::::
                    # (change requires restart)::::
#temp_buffers = 8MB            # min 800kB::::
#max_prepared_transactions = 0        # zero disables the feature::::
                    # (change requires restart)::::
# Note:  Increasing max_prepared_transactions costs ~600 bytes of shared memory:::
# per transaction slot, plus lock space (see max_locks_per_transaction).::::
# It is not advisable to set max_prepared_transactions nonzero unless you::::
# actively intend to use prepared transactions.::::
#work_mem = 1MB                # min 64kB::::
#maintenance_work_mem = 16MB        # min 1MB::::
#max_stack_depth = 2MB            # min 100kB::::
::::
# - Kernel Resource Usage -::::
::::
#max_files_per_process = 1000        # min 25::::
                    # (change requires restart)::::
#shared_preload_libraries = ''        # (change requires restart)::::
::::
# - Cost-Based Vacuum Delay -::::
::::
#vacuum_cost_delay = 0ms        # 0-100 milliseconds::::
#vacuum_cost_page_hit = 1        # 0-10000 credits::::
#vacuum_cost_page_miss = 10        # 0-10000 credits::::
#vacuum_cost_page_dirty = 20        # 0-10000 credits::::
#vacuum_cost_limit = 200        # 1-10000 credits::::
::::
# - Background Writer -::::
::::
#bgwriter_delay = 200ms            # 10-10000ms between rounds::::
#bgwriter_lru_maxpages = 100        # 0-1000 max buffers written/round::::
#bgwriter_lru_multiplier = 2.0        # 0-10.0 multipler on buffers scanned/round::::
::::
# - Asynchronous Behavior -::::
::::
#effective_io_concurrency = 1        # 1-1000. 0 disables prefetching::::
::::
::::
#------------------------------------------------------------------------------::::
# WRITE AHEAD LOG::::
#------------------------------------------------------------------------------::::
::::
# - Settings -::::
::::
#fsync = on                # turns forced synchronization on or off::::
#synchronous_commit = on        # immediate fsync at commit::::
#wal_sync_method = fsync        # the default is the first option ::::
                    # supported by the operating system::::
                    #   open_datasync::::
                    #   fdatasync::::
                    #   fsync::::
                    #   fsync_writethrough::::
                    #   open_sync::::
#full_page_writes = on            # recover from partial page writes::::
#wal_buffers = 64kB            # min 32kB::::
                    # (change requires restart)::::
#wal_writer_delay = 200ms        # 1-10000 milliseconds::::
::::
#commit_delay = 0            # range 0-100000, in microseconds::::
#commit_siblings = 5            # range 1-1000::::
::::
# - Checkpoints -::::
::::
#checkpoint_segments = 3        # in logfile segments, min 1, 16MB each::::
#checkpoint_timeout = 5min        # range 30s-1h::::
#checkpoint_completion_target = 0.5    # checkpoint target duration, 0.0 - 1.0::::
#checkpoint_warning = 30s        # 0 disables::::
::::
# - Archiving -::::
::::
#archive_mode = off        # allows archiving to be done::::
                # (change requires restart)::::
#archive_command = ''        # command to use to archive a logfile segment::::
#archive_timeout = 0        # force a logfile segment switch after this::::
                # number of seconds; 0 disables::::
::::
::::
#------------------------------------------------------------------------------::::
# QUERY TUNING::::
#------------------------------------------------------------------------------::::
::::
# - Planner Method Configuration -::::
::::
#enable_bitmapscan = on::::
#enable_hashagg = on::::
#enable_hashjoin = on::::
#enable_indexscan = on::::
#enable_mergejoin = on::::
#enable_nestloop = on::::
#enable_seqscan = on::::
#enable_sort = on::::
#enable_tidscan = on::::
::::
# - Planner Cost Constants -::::
::::
#seq_page_cost = 1.0            # measured on an arbitrary scale::::
#random_page_cost = 4.0            # same scale as above::::
#cpu_tuple_cost = 0.01            # same scale as above::::
#cpu_index_tuple_cost = 0.005        # same scale as above::::
#cpu_operator_cost = 0.0025        # same scale as above::::
#effective_cache_size = 128MB::::
::::
# - Genetic Query Optimizer -::::
::::
#geqo = on::::
#geqo_threshold = 12::::
#geqo_effort = 5            # range 1-10::::
#geqo_pool_size = 0            # selects default based on effort::::
#geqo_generations = 0            # selects default based on effort::::
#geqo_selection_bias = 2.0        # range 1.5-2.0::::
::::
# - Other Planner Options -::::
::::
#default_statistics_target = 100    # range 1-10000::::
#constraint_exclusion = partition    # on, off, or partition::::
#cursor_tuple_fraction = 0.1        # range 0.0-1.0::::
#from_collapse_limit = 8::::
#join_collapse_limit = 8        # 1 disables collapsing of explicit ::::
                    # JOIN clauses::::
::::
::::
#------------------------------------------------------------------------------::::
# ERROR REPORTING AND LOGGING::::
#------------------------------------------------------------------------------::::
::::
# - Where to Log -::::
::::
#log_destination = 'stderr'        # Valid values are combinations of::::
                    # stderr, csvlog, syslog and eventlog,::::
                    # depending on platform.  csvlog::::
                    # requires logging_collector to be on.::::
::::
# This is used when logging to stderr::::
#logging_collector = off        # Enable capturing of stderr and csvlog::::
                    # into log files. Required to be on for::::
                    # csvlogs.::::
                    # (change requires restart)::::
::::
# These are only used if logging_collector is on::::
#log_directory = 'pg_log'        # directory where log files are written,::::
                    # can be absolute or relative to PGDATA::::
#log_filename = 'postgresql-%Y-%m-%d_%H%M%S.log'    # log file name pattern,::::
                    # can include strftime() escapes::::
#log_truncate_on_rotation = off        # If on, an existing log file of the::::
                    # same name as the new log file will be::::
                    # truncated rather than appended to.::::
                    # But such truncation only occurs on::::
                    # time-driven rotation, not on restarts::::
                    # or size-driven rotation.  Default is::::
                    # off, meaning append to existing files::::
                    # in all cases.::::
#log_rotation_age = 1d            # Automatic rotation of logfiles will::::
                    # happen after that time.  0 disables.::::
#log_rotation_size = 10MB        # Automatic rotation of logfiles will ::::
                    # happen after that much log output.::::
                    # 0 disables.::::
::::
# These are relevant when logging to syslog::::
#syslog_facility = 'LOCAL0'::::
#syslog_ident = 'postgres'::::
::::
#silent_mode = off            # Run server silently.::::
                    # DO NOT USE without syslog or::::
                    # logging_collector::::
                    # (change requires restart)::::
::::
::::
# - When to Log -::::
::::
#client_min_messages = notice        # values in order of decreasing detail::::
                    #   debug5::::
                    #   debug4::::
                    #   debug3::::
                    #   debug2::::
                    #   debug1::::
                    #   log::::
                    #   notice::::
                    #   warning::::
                    #   error::::
::::
#log_min_messages = warning        # values in order of decreasing detail::::
                    #   debug5::::
                    #   debug4::::
                    #   debug3::::
                    #   debug2::::
                    #   debug1::::
                    #   info::::
                    #   notice::::
                    #   warning::::
                    #   error::::
                    #   log::::
                    #   fatal::::
                    #   panic::::
::::
#log_error_verbosity = default        # terse, default, or verbose messages::::
::::
#log_min_error_statement = error    # values in order of decreasing detail::::
                     #   debug5::::
                    #   debug4::::
                    #   debug3::::
                    #   debug2::::
                    #   debug1::::
                     #   info::::
                    #   notice::::
                    #   warning::::
                    #   error::::
                    #   log::::
                    #   fatal::::
                    #   panic (effectively off)::::
::::
#log_min_duration_statement = -1    # -1 is disabled, 0 logs all statements::::
                    # and their durations, > 0 logs only::::
                    # statements running at least this number::::
                    # of milliseconds::::
::::
::::
# - What to Log -::::
::::
#debug_print_parse = off::::
#debug_print_rewritten = off::::
#debug_print_plan = off::::
#debug_pretty_print = on::::
#log_checkpoints = off::::
#log_connections = off::::
#log_disconnections = off::::
#log_duration = off::::
#log_hostname = off::::
#log_line_prefix = ''            # special values::::
                    #   %u = user name::::
                    #   %d = database name::::
                    #   %r = remote host and port::::
                    #   %h = remote host::::
                    #   %p = process ID::::
                    #   %t = timestamp without milliseconds::::
                    #   %m = timestamp with milliseconds::::
                    #   %i = command tag::::
                    #   %c = session ID::::
                    #   %l = session line number::::
                    #   %s = session start timestamp::::
                    #   %v = virtual transaction ID::::
                    #   %x = transaction ID (0 if none)::::
                    #   %q = stop here in non-session::::
                    #        processes::::
                    #   %% = '%'::::
                    # e.g. '<%u%%%d> '::::
#log_lock_waits = off            # log lock waits >= deadlock_timeout::::
#log_statement = 'none'            # none, ddl, mod, all::::
#log_temp_files = -1            # log temporary files equal or larger::::
                    # than the specified size in kilobytes;::::
                    # -1 disables, 0 logs all temp files::::
#log_timezone = unknown            # actually, defaults to TZ environment::::
                    # setting::::
::::
::::
#------------------------------------------------------------------------------::::
# RUNTIME STATISTICS::::
#------------------------------------------------------------------------------::::
::::
# - Query/Index Statistics Collector -::::
::::
#track_activities = on::::
#track_counts = on::::
#track_functions = none            # none, pl, all::::
#track_activity_query_size = 1024::::
#update_process_title = on::::
#stats_temp_directory = 'pg_stat_tmp'::::
::::
::::
# - Statistics Monitoring -::::
::::
#log_parser_stats = off::::
#log_planner_stats = off::::
#log_executor_stats = off::::
#log_statement_stats = off::::
::::
::::
#------------------------------------------------------------------------------::::
# AUTOVACUUM PARAMETERS::::
#------------------------------------------------------------------------------::::
::::
#autovacuum = on            # Enable autovacuum subprocess?  'on' ::::
                    # requires track_counts to also be on.::::
#log_autovacuum_min_duration = -1    # -1 disables, 0 logs all actions and::::
                    # their durations, > 0 logs only::::
                    # actions running at least this number::::
                    # of milliseconds.::::
#autovacuum_max_workers = 3        # max number of autovacuum subprocesses::::
#autovacuum_naptime = 1min        # time between autovacuum runs::::
#autovacuum_vacuum_threshold = 50    # min number of row updates before::::
                    # vacuum::::
#autovacuum_analyze_threshold = 50    # min number of row updates before ::::
                    # analyze::::
#autovacuum_vacuum_scale_factor = 0.2    # fraction of table size before vacuum::::
#autovacuum_analyze_scale_factor = 0.1    # fraction of table size before analyze::::
#autovacuum_freeze_max_age = 200000000    # maximum XID age before forced vacuum::::
                    # (change requires restart)::::
#autovacuum_vacuum_cost_delay = 20ms    # default vacuum cost delay for::::
                    # autovacuum, in milliseconds;::::
                    # -1 means use vacuum_cost_delay::::
#autovacuum_vacuum_cost_limit = -1    # default vacuum cost limit for::::
                    # autovacuum, -1 means use::::
                    # vacuum_cost_limit::::
::::
::::
#------------------------------------------------------------------------------::::
# CLIENT CONNECTION DEFAULTS::::
#------------------------------------------------------------------------------::::
::::
# - Statement Behavior -::::
::::
#search_path = '"$user",public'        # schema names::::
#default_tablespace = ''        # a tablespace name, '' uses the default::::
#temp_tablespaces = ''            # a list of tablespace names, '' uses::::
                    # only default tablespace::::
#check_function_bodies = on::::
#default_transaction_isolation = 'read committed'::::
#default_transaction_read_only = off::::
#session_replication_role = 'origin'::::
#statement_timeout = 0            # in milliseconds, 0 is disabled::::
#vacuum_freeze_min_age = 50000000::::
#vacuum_freeze_table_age = 150000000::::
#xmlbinary = 'base64'::::
#xmloption = 'content'::::
::::
# - Locale and Formatting -::::
::::
#datestyle = 'iso, mdy'::::
#intervalstyle = 'postgres'::::
#timezone = unknown            # actually, defaults to TZ environment::::
                    # setting::::
#timezone_abbreviations = 'Default'     # Select the set of available time zone::::
                    # abbreviations.  Currently, there are::::
                    #   Default::::
                    #   Australia::::
                    #   India::::
                    # You can create your own file in::::
                    # share/timezonesets/.::::
#extra_float_digits = 0            # min -15, max 2::::
#client_encoding = sql_ascii        # actually, defaults to database::::
                    # encoding::::
::::
# These settings are initialized by initdb, but they can be changed.::::
#lc_messages = 'C'            # locale for system error message::::
                    # strings::::
#lc_monetary = 'C'            # locale for monetary formatting::::
#lc_numeric = 'C'            # locale for number formatting::::
#lc_time = 'C'                # locale for time formatting::::
::::
# default configuration for text search::::
#default_text_search_config = 'pg_catalog.simple'::::
::::
# - Other Defaults -::::
::::
#dynamic_library_path = '$libdir'::::
#local_preload_libraries = ''::::
::::
::::
#------------------------------------------------------------------------------::::
# LOCK MANAGEMENT::::
#------------------------------------------------------------------------------::::
::::
#deadlock_timeout = 1s::::
#max_locks_per_transaction = 64        # min 10::::
                    # (change requires restart)::::
# Note:  Each lock table slot uses ~270 bytes of shared memory, and there are:::
# max_locks_per_transaction * (max_connections + max_prepared_transactions)::::
# lock table slots.::::
::::
::::
#------------------------------------------------------------------------------::::
# VERSION/PLATFORM COMPATIBILITY::::
#------------------------------------------------------------------------------::::
::::
# - Previous PostgreSQL Versions -::::
::::
#add_missing_from = off::::
#array_nulls = on::::
#backslash_quote = safe_encoding    # on, off, or safe_encoding::::
#default_with_oids = off::::
#escape_string_warning = on::::
#regex_flavor = advanced        # advanced, extended, or basic::::
#sql_inheritance = on::::
#standard_conforming_strings = off::::
#synchronize_seqscans = on::::
::::
# - Other Platforms and Clients -::::
::::
#transform_null_equals = off::::
::::
::::
#------------------------------------------------------------------------------::::
# CUSTOMIZED OPTIONS::::
#------------------------------------------------------------------------------::::
::::
#custom_variable_classes = ''        # list of custom variable class names::::