diff --git a/playbooks/groups/postgresql-server-bdr.yml b/playbooks/groups/postgresql-server-bdr.yml index 42847ecc8e..2df0bc9a45 100644 --- a/playbooks/groups/postgresql-server-bdr.yml +++ b/playbooks/groups/postgresql-server-bdr.yml @@ -26,6 +26,7 @@ - collectd/postgres # This requires a 'databases' var to be set in host_vars - sudo - keepalived + - postgresql_server_bdr tasks: - include: "{{ tasks }}/yumrepos.yml" diff --git a/roles/postgresql_server_bdr/files/backup-database b/roles/postgresql_server_bdr/files/backup-database new file mode 100644 index 0000000000..586bdca9a8 --- /dev/null +++ b/roles/postgresql_server_bdr/files/backup-database @@ -0,0 +1,10 @@ +#!/bin/bash +# Backup a database *locally* to /backups/. + +DB=$1 + +# Make our latest backup +/usr/bin/pg_dump --exclude-table-data=sessions -C $DB | /usr/bin/xz > /backups/$DB-$(date +%F).dump.xz + +# Also, delete the backup from a few days ago. +rm -f /backups/$DB-$(date --date="2 days ago" +%F).dump.xz diff --git a/roles/postgresql_server_bdr/files/fasdb-cleanup-sessions b/roles/postgresql_server_bdr/files/fasdb-cleanup-sessions new file mode 100755 index 0000000000..165971f1b0 --- /dev/null +++ b/roles/postgresql_server_bdr/files/fasdb-cleanup-sessions @@ -0,0 +1,12 @@ +#!/bin/sh + +PGOPTIONS='-c maintenance_work_mem=1048576' +SESSIONDBS='fas2' + +# Clean out old sessions since TurboGears doesn't +for db in $SESSIONDBS; do +/usr/bin/psql $db > /dev/null <> $LOGFILE 2>&1 + +date + +$PSQL -q -t -c "SELECT lock_monitor.log_table_locks()" +$PSQL -q -t -c "SELECT lock_monitor.log_txn_locks()" + +KILLQUERY="WITH idles AS ( +SELECT now() as ts, datname, pid, usename, application_name, + client_addr, backend_start, xact_start, state_change, + waiting, query, pg_terminate_backend(pid) +FROM pg_stat_activity +WHERE + -- avoid system users + usename != '${SUPERUSER}' + AND usename != '${BACKUPUSER}' + AND ( + -- terminate idle txns + ( state = 'idle in transaction' AND ( now() - state_change ) > '${IDLETIME} minutes' ) + -- terminate lock waits + OR + ( state = 'active' AND waiting AND ( now() - state_change ) > '${LOCKWAIT} minutes' ) + -- terminate old txns + OR + ( state = 'active' AND ( now() - xact_start ) > '${XACTTIME} minutes' ) + ) +) +INSERT INTO lock_monitor.activity +SELECT * FROM idles;" + +$PSQL -q -t -c "${KILLQUERY}" + +exit 0 diff --git a/roles/postgresql_server_bdr/files/koji-cleanup-locks.cron b/roles/postgresql_server_bdr/files/koji-cleanup-locks.cron new file mode 100644 index 0000000000..ea9a8d8de7 --- /dev/null +++ b/roles/postgresql_server_bdr/files/koji-cleanup-locks.cron @@ -0,0 +1,6 @@ +SHELL=/bin/bash +PATH=/sbin:/bin:/usr/sbin:/usr/bin +MAILTO=root@fedoraproject.org +HOME=/ + +*/10 * * * * postgres /usr/local/bin/kill_idle_xact_92.sh diff --git a/roles/postgresql_server_bdr/files/koji-cleanup-sessions.cron b/roles/postgresql_server_bdr/files/koji-cleanup-sessions.cron new file mode 100644 index 0000000000..562a7825aa --- /dev/null +++ b/roles/postgresql_server_bdr/files/koji-cleanup-sessions.cron @@ -0,0 +1,6 @@ +SHELL=/bin/bash +PATH=/sbin:/bin:/usr/sbin:/usr/bin +MAILTO=root@fedoraproject.org +HOME=/ + +0 0 * * * postgres /usr/bin/psql -q -c "DELETE FROM sessions WHERE update_time < now() - '1 day'::interval" koji diff --git a/roles/postgresql_server_bdr/files/pg_hba.conf b/roles/postgresql_server_bdr/files/pg_hba.conf new file mode 100644 index 0000000000..9a1770c590 --- /dev/null +++ b/roles/postgresql_server_bdr/files/pg_hba.conf @@ -0,0 +1,80 @@ +# PostgreSQL Client Authentication Configuration File +# =================================================== +# +# Refer to the PostgreSQL Administrator's Guide, chapter "Client +# Authentication" for a complete description. A short synopsis +# follows. +# +# This file controls: which hosts are allowed to connect, how clients +# are authenticated, which PostgreSQL user names they can use, which +# databases they can access. Records take one of these forms: +# +# local DATABASE USER METHOD [OPTION] +# host DATABASE USER CIDR-ADDRESS METHOD [OPTION] +# hostssl DATABASE USER CIDR-ADDRESS METHOD [OPTION] +# hostnossl DATABASE USER CIDR-ADDRESS METHOD [OPTION] +# +# (The uppercase items must be replaced by actual values.) +# +# The first field is the connection type: "local" is a Unix-domain socket, +# "host" is either a plain or SSL-encrypted TCP/IP socket, "hostssl" is an +# SSL-encrypted TCP/IP socket, and "hostnossl" is a plain TCP/IP socket. +# +# DATABASE can be "all", "sameuser", "samerole", a database name, or +# a comma-separated list thereof. +# +# USER can be "all", a user name, a group name prefixed with "+", or +# a comma-separated list thereof. In both the DATABASE and USER fields +# you can also write a file name prefixed with "@" to include names from +# a separate file. +# +# CIDR-ADDRESS specifies the set of hosts the record matches. +# It is made up of an IP address and a CIDR mask that is an integer +# (between 0 and 32 (IPv4) or 128 (IPv6) inclusive) that specifies +# the number of significant bits in the mask. Alternatively, you can write +# an IP address and netmask in separate columns to specify the set of hosts. +# +# METHOD can be "trust", "reject", "md5", "crypt", "password", +# "krb5", "ident", or "pam". Note that "password" sends passwords +# in clear text; "md5" is preferred since it sends encrypted passwords. +# +# OPTION is the ident map or the name of the PAM service, depending on METHOD. +# +# Database and user names containing spaces, commas, quotes and other special +# characters must be quoted. Quoting one of the keywords "all", "sameuser" or +# "samerole" makes the name lose its special character, and just match a +# database or username with that name. +# +# This file is read on server startup and when the postmaster receives +# a SIGHUP signal. If you edit the file on a running system, you have +# to SIGHUP the postmaster for the changes to take effect. You can use +# "pg_ctl reload" to do that. + +# Put your actual configuration here +# ---------------------------------- +# +# If you want to allow non-local connections, you need to add more +# "host" records. In that case you will also need to make PostgreSQL listen +# on a non-local interface via the listen_addresses configuration parameter, +# or via the -i or -h command line switches. +# + +#@authcomment@ + +# TYPE DATABASE USER CIDR-ADDRESS METHOD + +#@remove-line-for-nolocal@# "local" is for Unix domain socket connections only +#@remove-line-for-nolocal@local all all @authmethod@ +# IPv4 local connections: +#host all all 127.0.0.1/32 @authmethod@ +# IPv6 local connections: +#host all all ::1/128 @authmethod@ + +local all all ident +host koji koji 10.5.126.61 255.255.255.255 md5 +host all all 0.0.0.0 0.0.0.0 md5 +# Note, I can't think of a reason to make this more restrictive than ipv4 but +# only fakefas needs it so far +host all all ::1/128 md5 + + diff --git a/roles/postgresql_server_bdr/handlers/main.yml b/roles/postgresql_server_bdr/handlers/main.yml new file mode 100644 index 0000000000..1e3b380d17 --- /dev/null +++ b/roles/postgresql_server_bdr/handlers/main.yml @@ -0,0 +1,3 @@ +--- +- name: restart postgresql94 + service: name=postgresql-9.4 state=restarted diff --git a/roles/postgresql_server_bdr/tasks/main.yml b/roles/postgresql_server_bdr/tasks/main.yml new file mode 100644 index 0000000000..6ce056f943 --- /dev/null +++ b/roles/postgresql_server_bdr/tasks/main.yml @@ -0,0 +1,112 @@ +--- +# +# Setup BDR postgresql server. +# + +- name: setup 2ndquadrant repo + yum: > + name=http://packages.2ndquadrant.com/postgresql-bdr94-2ndquadrant/yum-repo-rpms/postgresql-bdr94-2ndquadrant-redhat-latest.noarch.rpm + state=present + tags: + - packages + - postgresql-bdr + +- name: install postgresql server packages (yum) + yum: name={{ item }} state=present + with_items: + - postgresql-bdr94 + - postgresql-bdr94-contrib + - postgresql-bdr94-server + - postgresql-bdr94-bdr + - postgresql-plpython + - python-psycopg2 + when: ansible_distribution_major_version|int < 22 + tags: + - packages + - postgresql-bdr + +- name: Set kernel shared memory max to a larger value + sysctl: name=kernel.shmmax value={{ kernel_shmmax }} + when: kernel_shmmax is defined + notify: + - restart postgresql94 + tags: + - postgresql-bdr + +- name: Initialize postgres if necessary + command: /usr/pgsql-9.4/bin/postgresql94-setup initdb + creates=/var/lib/pgsql/9.4-bdr/data + notify: + - restart postgresql94 + tags: + - postgresql-bdr + +- name: Set postgresql-server to run on boot + service: name=postgresql-9.4 enabled=yes + ignore_errors: true + notify: + - restart postgresql94 + tags: + - service + - postgresql + +- name: Add our postgres config file. + copy: > + src={{ item }} + dest=/var/lib/pgsql/9.4-bdr/data/{{ item }} + owner=postgres + with_items: + - pg_hba.conf + notify: + - restart postgresql94 + tags: + - config + - postgresql-bdr + +- name: postgresql config template + template: dest=/var/lib/pgsql/9.4-bdr/data/postgresql.conf src=postgresql.conf + notify: + - restart postgresql94 + tags: + - config + - postgresql-bdr + +- name: Ensure postgres has a place to backup to + file: dest=/backups state=directory owner=postgres + tags: + - postgresql + +- name: Copy over backup scriplet + copy: src=backup-database dest=/usr/local/bin/backup-database mode=0755 + tags: + - postgresql + +- name: Set up some cronjobs to backup databases as configured + template: > + src=cron-backup-database + dest=/etc/cron.d/cron-backup-database-{{ item }} + with_items: + - "{{ dbs_to_backup }}" + when: dbs_to_backup != [] + tags: + - cron + - postgresql-bdr + +- name: Set up a cron job to clean long koji sessions on koji database server only + copy: > + src=koji-cleanup-sessions.cron + dest=/etc/cron.d/koji-cleanup-sessions.cron + when: inventory_hostname.startswith('db-koji01') + tags: + - cron + - postgresql-bdr + +- name: Set up a script for cron job to clean long fas sessions on fas database server only + copy: > + src=fasdb-cleanup-sessions + dest=/usr/local/bin/fasdb-cleanup-sessions + mode=755 + when: inventory_hostname.startswith('db-fas01') + tags: + - cron + - postgresql-bdr diff --git a/roles/postgresql_server_bdr/templates/cron-backup-database b/roles/postgresql_server_bdr/templates/cron-backup-database new file mode 100644 index 0000000000..ce3c52d7d4 --- /dev/null +++ b/roles/postgresql_server_bdr/templates/cron-backup-database @@ -0,0 +1 @@ +0 0 * * * postgres /usr/local/bin/backup-database {{ item }} diff --git a/roles/postgresql_server_bdr/templates/postgresql.conf b/roles/postgresql_server_bdr/templates/postgresql.conf new file mode 100644 index 0000000000..c86c64daa7 --- /dev/null +++ b/roles/postgresql_server_bdr/templates/postgresql.conf @@ -0,0 +1,520 @@ +{% if ansible_hostname.startswith("db-fas01") or ansible_hostname.startswith("db01") %} +# This enabled pg-8 compatibility for bytea fields +# Fixes errors with sqlalchemy with binary data when app is on RHEL6 and server is PG9 +# Reference: https://bitbucket.org/zzzeek/sqlalchemy/issue/2016/pickletype-does-not-work-with-postgresql +bytea_output = 'escape' +{% endif %} + +# ----------------------------- +# 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 paramters 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 + + +#------------------------------------------------------------------------------ +# 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 = 750 # (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. +#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:@STRENGTH' # allowed SSL ciphers + # (change requires restart) +#password_encryption = on +#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) + +# - 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 = {{ shared_buffers }} # min 128kB or max_connections*16kB + # (change requires restart) +#temp_buffers = 8MB # min 800kB +#max_prepared_transactions = 5 # can be 0 or more + # (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). + +# 8 MB is probably on the high side. We can probably do with 4MB. But we +# were seeing a problem and we have the RAM so we're going to try this. +work_mem = 4MB # min 64kB +maintenance_work_mem = 1024MB # min 1MB +#max_stack_depth = 2MB # min 100kB + +# - Free Space Map - + +#max_fsm_pages = 6000000 # 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 + # (change requires restart) +#shared_preload_libraries = '' # (change requires restart) + +# - Cost-Based Vacuum Delay - + +vacuum_cost_delay = 0 # 0-1000 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 = 400 # 0-1000 max buffers written/round +bgwriter_lru_multiplier = 4.0 # 0-10.0 multipler on buffers scanned/round + + +#------------------------------------------------------------------------------ +# WRITE AHEAD LOG +#------------------------------------------------------------------------------ + +# - Settings - + +fsync = on # turns forced synchronization on or off +synchronous_commit = on # immediate fsync at commit +wal_sync_method = fdatasync # 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 = 30 # in logfile segments, min 1, 16MB each +checkpoint_timeout = 30min # range 30s-1h +checkpoint_completion_target = 0.6 # checkpoint target duration, 0.0 - 1.0 +checkpoint_warning = 180s # 0 is off + +# - 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 + # time; 0 is off + + +#------------------------------------------------------------------------------ +# 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 = 3.0 # 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 = {{ effective_cache_size }} + +# - 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 1-1000 +#constraint_exclusion = off +#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 = on # 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 to disable. +log_rotation_size = 0 # Automatic rotation of logfiles will + # happen after that much log output. + # 0 to disable. + +# These are relevant when logging to syslog: +#syslog_facility = 'LOCAL0' +#syslog_ident = 'postgres' + + +# - 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 = notice # 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 time. + +#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 +log_checkpoints = on +#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 = 0 # log temporary files equal or larger + # than specified size; + # -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 +update_process_title = on + + +# - 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 that time. +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 = 0.1 # 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 = 20 # default vacuum cost delay for + # autovacuum, -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 = '"$user",public' # schema names +#default_tablespace = '' # a tablespace name, '' uses the default +#temp_tablespaces = '' # a list of tablespace names, '' uses + # only default tablespace +#check_function_bodies = on +#default_transaction_isolation = 'read committed' +#default_transaction_read_only = off +#session_replication_role = 'origin' +#statement_timeout = 0 # 0 is disabled +#vacuum_freeze_min_age = 100000000 +#xmlbinary = 'base64' +#xmloption = 'content' + +# - Locale and Formatting - + +datestyle = 'iso, mdy' +#timezone = unknown # actually, defaults to TZ environment + # setting +#timezone_abbreviations = 'Default' # Select the set of available time zone + # abbreviations. Currently, there are + # Default + # Australia + # India + # You can create your own file in + # share/timezonesets/. +#extra_float_digits = 0 # min -15, max 2 +#client_encoding = sql_ascii # actually, defaults to database + # encoding + +# These settings are initialized by initdb, but they can be changed. +lc_messages = 'en_US.UTF-8' # locale for system error message + # strings +lc_monetary = 'en_US.UTF-8' # locale for monetary formatting +lc_numeric = 'en_US.UTF-8' # locale for number formatting +lc_time = 'en_US.UTF-8' # locale for time formatting + +# default configuration for text search +default_text_search_config = 'pg_catalog.english' + +# - Other Defaults - + +#explain_pretty_print = on +#dynamic_library_path = '$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 +shared_preload_libraries = 'bdr' +wal_level = 'logical' +track_commit_timestamp = on +max_connections = 100 +max_wal_senders = 10 +max_replication_slots = 10 +# Make sure there are enough background worker slots for BDR to run +max_worker_processes = 10 + +# These aren't required, but are useful for diagnosing problems +#log_error_verbosity = verbose +#log_min_messages = debug1 +#log_line_prefix = 'd=%d p=%p a=%a%q ' + +# Useful options for playing with conflicts +#bdr.default_apply_delay=2000 # milliseconds +#bdr.log_conflicts_to_table=on