Please review PostgreSQL conf file

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Please review PostgreSQL conf file

Postby RobertX » Tue Sep 06, 2011 11:16 am

Hi,

I reinstalled PT 3.11.5 with PostgreSQL 9.0.4. My machine is W7 64 bit with 4GB mainmemory. WD Velociraptor 150GB and AMD Phenom 550 unlocked to 4 cores with 3.1k MHz running.

I have modified the config file from various ressources to the best "knowledge" for my machine. However I would like you pros to look over it, maybe I have overdone a setting or got something totally wrong.

I don't have issues running PT though, but since most of the applied settings are merely "copy&paste", would be great if someone could take a look for it being ok (or something better).

Thank you very much.

Robert

Code: Select all
# -----------------------------
# 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 = 25         # (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 = off            # advertise server via Bonjour
               # (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:@STRENGTH'   # allowed SSL ciphers
               # (change requires restart)
#ssl_renegotiation_limit = 512MB   # amount of data between renegotiations
#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 = 1GB         # 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 = 64MB            # min 64kB
maintenance_work_mem = 512MB      # 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 -

#wal_level = minimal         # minimal, archive, or hot_standby
               # (change requires restart)
fsync = off            # 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 (default on Linux)
               #   fsync
               #   fsync_writethrough
               #   open_sync
#full_page_writes = on         # recover from partial page writes
wal_buffers = 8MB         # 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 = 32      # in logfile segments, min 1, 16MB each
checkpoint_timeout = 1h      # 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

# - Streaming Replication -

#max_wal_senders = 0      # max number of walsender processes
            # (change requires restart)
#wal_sender_delay = 200ms   # walsender cycle time, 1-10000 milliseconds
#wal_keep_segments = 0      # in logfile segments, 16MB each; 0 disables
#vacuum_defer_cleanup_age = 0   # number of xacts by which cleanup is delayed

# - Standby Servers -

#hot_standby = off         # "on" allows queries during recovery
               # (change requires restart)
#max_standby_archive_delay = 30s   # max delay before canceling queries
               # when reading WAL from archive;
               # -1 allows indefinite delay
#max_standby_streaming_delay = 30s   # max delay before canceling queries
               # when reading streaming WAL;
               # -1 allows indefinite delay


#------------------------------------------------------------------------------
# QUERY TUNING
#------------------------------------------------------------------------------

# - Planner Method Configuration -

#enable_bitmapscan = on
#enable_hashagg = on
#enable_hashjoin = on
#enable_indexscan = on
#enable_material = 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 = 0.0030         # same scale as above
cpu_index_tuple_cost = 0.0010      # same scale as above
cpu_operator_cost = 0.0005      # same scale as above
effective_cache_size = 3GB

# - 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
#geqo_seed = 0.0         # range 0.0-1.0

# - 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 = on      # 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_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_error_verbosity = default      # terse, default, or verbose messages
#log_hostname = off
log_line_prefix = '%t '         # special values:
               #   %a = application name
               #   %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
               #   %e = SQL state
               #   %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    # (change requires restart)
#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
               # (change requires restart)
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
#bytea_output = 'hex'         # hex, escape
#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 3
#client_encoding = sql_ascii      # actually, defaults to database
               # encoding

# These settings are initialized by initdb, but they can be changed.
lc_messages = 'English, United States'         # locale for system error message
               # strings
lc_monetary = 'English, United States'         # locale for monetary formatting
lc_numeric = 'English, United States'         # locale for number formatting
lc_time = 'English, United States'            # 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 -

#array_nulls = on
#backslash_quote = safe_encoding   # on, off, or safe_encoding
#default_with_oids = off
#escape_string_warning = on
#lo_compat_privileges = off
#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
zero_damaged_pages = on
RobertX
 
Posts: 13
Joined: Thu Sep 01, 2011 3:20 pm

Re: Please review PostgreSQL conf file

Postby kraada » Wed Sep 07, 2011 9:20 am

That all looks fine. Are you experiencing any performance problems with the database in question?
kraada
Moderator
 
Posts: 54431
Joined: Wed Mar 05, 2008 2:32 am
Location: NY

Re: Please review PostgreSQL conf file

Postby RobertX » Sun Sep 11, 2011 2:56 pm

kraada wrote:That all looks fine. Are you experiencing any performance problems with the database in question?


Not any that I can put my finger on, but since I am no database wiz and just merely used several ressource to "spice up" the config file, I was worried I might have overdone it at some point or some settings would be conflicting maybe sorts of. Copy&paste is fast done, but doesn't replace the professionals :)
RobertX
 
Posts: 13
Joined: Thu Sep 01, 2011 3:20 pm

Re: Please review PostgreSQL conf file

Postby kraada » Mon Sep 12, 2011 8:22 am

True, but one thing with databases is that they perform very differently on slightly different hardware. Feel free to tinker with it to see if you get better performance changing things a little in either direction. If you overdo it too much you'll see things get quite a bit worse.
kraada
Moderator
 
Posts: 54431
Joined: Wed Mar 05, 2008 2:32 am
Location: NY


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