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@ecarreras
Created June 25, 2012 20:26
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Postgres 8.3 -> 8.4
--- 8.3/main/postgresql.conf 2010-11-18 18:12:51.000000000 +0100
+++ 8.4/main/postgresql.conf 2012-06-25 18:02:13.000000000 +0200
@@ -21,11 +21,14 @@
# take effect.
#
# Any parameter can also be given as a command-line option to the server, e.g.,
-# "postgres -c log_connections=on". Some paramters can be changed at run time
+# "postgres -c log_connections=on". Some parameters can be changed at run time
# with the "SET" SQL command.
#
-# Memory units: kB = kilobytes MB = megabytes GB = gigabytes
-# Time units: ms = milliseconds s = seconds min = minutes h = hours d = days
+# Memory units: kB = kilobytes Time units: ms = milliseconds
+# MB = megabytes s = seconds
+# GB = gigabytes min = minutes
+# h = hours
+# d = days
#------------------------------------------------------------------------------
@@ -35,16 +38,15 @@
# The default values of these variables are driven from the -D command-line
# option or PGDATA environment variable, represented here as ConfigDir.
-#data_directory = '/var/lib/postgresql/8.3/main' # use data in another directory
-data_directory = '/home/postgresql/8.3/main' # use data in another directory
+data_directory = '/var/lib/postgresql/8.4/main' # use data in another directory
# (change requires restart)
-hba_file = '/etc/postgresql/8.3/main/pg_hba.conf' # host-based authentication file
+hba_file = '/etc/postgresql/8.4/main/pg_hba.conf' # host-based authentication file
# (change requires restart)
-ident_file = '/etc/postgresql/8.3/main/pg_ident.conf' # ident configuration file
+ident_file = '/etc/postgresql/8.4/main/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 = '/var/run/postgresql/8.3-main.pid' # write an extra PID file
+external_pid_file = '/var/run/postgresql/8.4-main.pid' # write an extra PID file
# (change requires restart)
@@ -58,11 +60,10 @@
# comma-separated list of addresses;
# defaults to 'localhost', '*' = all
# (change requires restart)
-port = 5432 # (change requires restart)
-max_connections = 75 # (change requires restart)
+port = 5433 # (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). You might
-# also need to raise shared_buffers to support more connections.
+# connection slot, plus lock space (see max_locks_per_transaction).
#superuser_reserved_connections = 3 # (change requires restart)
unix_socket_directory = '/var/run/postgresql' # (change requires restart)
#unix_socket_group = '' # (change requires restart)
@@ -82,12 +83,9 @@
#db_user_namespace = off
# Kerberos and GSSAPI
-#krb_server_keyfile = '' # (change requires restart)
-#krb_srvname = 'postgres' # (change requires restart, Kerberos only)
-#krb_server_hostname = '' # empty string matches any keytab entry
- # (change requires restart, Kerberos only)
-#krb_caseins_users = off # (change requires restart)
-#krb_realm = '' # (change requires restart)
+#krb_server_keyfile = ''
+#krb_srvname = 'postgres' # (Kerberos only)
+#krb_caseins_users = off
# - TCP Keepalives -
# see "man 7 tcp" for details
@@ -106,25 +104,19 @@
# - Memory -
-#shared_buffers = 24MB # min 128kB or max_connections*16kB
-shared_buffers = 4196MB
+shared_buffers = 32MB # min 128kB
# (change requires restart)
#temp_buffers = 8MB # min 800kB
-#max_prepared_transactions = 5 # can be 0 or more
+#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).
-work_mem = 64MB # min 64kB
-maintenance_work_mem = 128MB # min 1MB
+# 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
-# - Free Space Map -
-
-max_fsm_pages = 153600 # min max_fsm_relations*16, 6 bytes each
- # (change requires restart)
-#max_fsm_relations = 1000 # min 100, ~70 bytes each
- # (change requires restart)
-
# - Kernel Resource Usage -
#max_files_per_process = 1000 # min 25
@@ -133,7 +125,7 @@
# - Cost-Based Vacuum Delay -
-#vacuum_cost_delay = 0 # 0-1000 milliseconds
+#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
@@ -145,6 +137,10 @@
#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
@@ -157,12 +153,12 @@
#wal_sync_method = fsync # the default is the first option
# supported by the operating system:
# open_datasync
- # fdatasync
+ # fdatasync (default on Linux)
# fsync
# fsync_writethrough
# open_sync
#full_page_writes = on # recover from partial page writes
-wal_buffers = 8MB # min 32kB
+#wal_buffers = 64kB # min 32kB
# (change requires restart)
#wal_writer_delay = 200ms # 1-10000 milliseconds
@@ -174,7 +170,7 @@
#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 is off
+#checkpoint_warning = 30s # 0 disables
# - Archiving -
@@ -182,7 +178,7 @@
# (change requires restart)
#archive_command = '' # command to use to archive a logfile segment
#archive_timeout = 0 # force a logfile segment switch after this
- # time; 0 is off
+ # number of seconds; 0 disables
#------------------------------------------------------------------------------
@@ -205,10 +201,10 @@
#seq_page_cost = 1.0 # measured on an arbitrary scale
#random_page_cost = 4.0 # same scale as above
-cpu_tuple_cost = 0.003 # same scale as above
-cpu_index_tuple_cost = 0.001 # same scale as above
-cpu_operator_cost = 0.0005 # same scale as above
-effective_cache_size = 1GB
+#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 -
@@ -221,8 +217,9 @@
# - Other Planner Options -
-#default_statistics_target = 10 # range 1-1000
-#constraint_exclusion = off
+#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
@@ -259,15 +256,20 @@
# off, meaning append to existing files
# in all cases.
#log_rotation_age = 1d # Automatic rotation of logfiles will
- # happen after that time. 0 to disable.
+ # happen after that time. 0 disables.
#log_rotation_size = 10MB # Automatic rotation of logfiles will
# happen after that much log output.
- # 0 to disable.
+ # 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 -
@@ -282,7 +284,7 @@
# warning
# error
-#log_min_messages = notice # values in order of decreasing detail:
+#log_min_messages = warning # values in order of decreasing detail:
# debug5
# debug4
# debug3
@@ -314,24 +316,22 @@
#log_min_duration_statement = -1 # -1 is disabled, 0 logs all statements
# and their durations, > 0 logs only
- # statements running at least this time.
+ # statements running at least this number
+ # of milliseconds
-#silent_mode = off # DO NOT USE without syslog or
- # logging_collector
- # (change requires restart)
# - What to Log -
#debug_print_parse = off
#debug_print_rewritten = off
#debug_print_plan = off
-#debug_pretty_print = off
+#debug_pretty_print = on
#log_checkpoints = off
#log_connections = off
#log_disconnections = off
#log_duration = off
#log_hostname = off
-log_line_prefix = '%t %d ' # special values:
+log_line_prefix = '%t ' # special values:
# %u = user name
# %d = database name
# %r = remote host and port
@@ -350,9 +350,9 @@
# %% = '%'
# e.g. '<%u%%%d> '
#log_lock_waits = off # log lock waits >= deadlock_timeout
-log_statement = 'mod' # none, ddl, mod, all
+#log_statement = 'none' # none, ddl, mod, all
#log_temp_files = -1 # log temporary files equal or larger
- # than specified size;
+ # than the specified size in kilobytes;
# -1 disables, 0 logs all temp files
#log_timezone = unknown # actually, defaults to TZ environment
# setting
@@ -366,7 +366,10 @@
#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 -
@@ -385,7 +388,8 @@
# 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 that time.
+ # 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
@@ -396,9 +400,9 @@
#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 = 20 # default vacuum cost delay for
- # autovacuum, -1 means use
- # vacuum_cost_delay
+#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
@@ -418,14 +422,16 @@
#default_transaction_isolation = 'read committed'
#default_transaction_read_only = off
#session_replication_role = 'origin'
-#statement_timeout = 0 # 0 is disabled
-#vacuum_freeze_min_age = 100000000
+#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
@@ -451,7 +457,6 @@
# - Other Defaults -
-#explain_pretty_print = on
#dynamic_library_path = '$libdir'
#local_preload_libraries = ''
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