# See postgresql.conf.sample for a full conf file

listen_addresses = '*'		# what IP address(es) to listen on;
max_connections = 2000			# (change requires restart)

ssl = false                             # (change requires restart)

# - Memory -
# values from: http://blog.pgaddict.com/posts/performance-since-postgresql-7-4-to-9-4-pgbench
# details: http://www.postgresql.org/docs/9.4/static/runtime-config-resource.html
# http://www.postgresql.org/docs/9.4/static/runtime-config-wal.html
# http://www.postgresql.org/docs/9.4/static/runtime-config-query.html
shared_buffers = 256MB                    # min 128kB
work_mem = 64MB                                # min 64kB
maintenance_work_mem = 512MB            # min 1MB
# checkpoint_segments = 64
checkpoint_completion_target = 0.9
effective_cache_size = 8GB

# when executed on the SSD (otherwise 4)
random_page_cost = 2

shared_preload_libraries = 'pg_stat_statements'		# (change requires restart)
pg_stat_statements.track = all
pg_stat_statements.max = 500000
track_activity_query_size = 2048

#------------------------------------------------------------------------------
# WRITE AHEAD LOG
#------------------------------------------------------------------------------

# - Settings -

wal_level = minimal			# minimal, archive, or hot_standby

# WARNING: disabling synchronous commit may be dangerous in certain cases.
# See http://www.postgresql.org/docs/current/static/runtime-config-wal.html
# for details.
synchronous_commit = off

#------------------------------------------------------------------------------
# REPLICATION
#------------------------------------------------------------------------------

# - Master Server -

# These settings are ignored on a standby server

max_wal_senders = 0		# max number of walsender processes
				# (change requires restart)

#------------------------------------------------------------------------------
# ERROR REPORTING AND LOGGING
#------------------------------------------------------------------------------

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> '

#------------------------------------------------------------------------------
# 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
#default_transaction_deferrable = 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 = '(defaults to server 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 = 'en_US.UTF-8'			# locale for system error message
					# strings
#lc_monetary = 'en_US.UTF-8'			# locale for monetary formatting
#lc_numeric = 'en_US.UTF-8'			# locale for number formatting
#lc_time = 'en_US.UTF-8'				# locale for time formatting

# default configuration for text search
#default_text_search_config = 'pg_catalog.english'

# - 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.
max_pred_locks_per_transaction = 256	# min 10
					# (change requires restart)