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-rw-r--r--README.md10
-rw-r--r--tasks/postgres-cluster.yml13
-rw-r--r--templates/postgresql.12.conf.j2809
3 files changed, 825 insertions, 7 deletions
diff --git a/README.md b/README.md
index 050fb65..3ab4153 100644
--- a/README.md
+++ b/README.md
@@ -6,7 +6,7 @@ See [role page on Ansible Galaxy](https://galaxy.ansible.com/trainline-eu/ansibl
6 6
7#### Installation 7#### Installation
8 8
9This role has been tested on Ansible 2.3.0 and higher. 9This role has been tested on Ansible 2.5.0 and higher.
10 10
11To install: 11To install:
12 12
@@ -25,10 +25,10 @@ Recommended dependencies:
25 25
26This table lists the tested version of OS/PostgreSQL couples. 26This table lists the tested version of OS/PostgreSQL couples.
27 27
28| Distribution / PostgreSQL | 9.1 | 9.4 | 9.5 | 9.6 | 10 | 11 | 28| Distribution / PostgreSQL | 9.1 | 9.4 | 9.5 | 9.6 | 10 | 11 | 12 |
29| ------------------------- |:---:|:---:|:---:|:---:|:---:|:---:| 29| ------------------------- | :---: | :---: | :---: | :---: | :---: | :---: | :---: |
30| Debian 8.x | :no_entry: :white_check_mark:| :white_check_mark:| :white_check_mark:| :white_check_mark:| :white_check_mark:| :white_check_mark:| 30| Debian 8.x | :no_entry: :white_check_mark: | :no_entry: :white_check_mark: | :white_check_mark: | :white_check_mark: | :white_check_mark: | :white_check_mark: | :white_check_mark: |
31| Debian 9.x | :no_entry: :white_check_mark:| :white_check_mark:| :white_check_mark:| :white_check_mark:| :white_check_mark:| :white_check_mark:| 31| Debian 9.x | :no_entry: :white_check_mark: | :no_entry: :white_check_mark: | :white_check_mark: | :white_check_mark: | :white_check_mark: | :white_check_mark: | :white_check_mark: |
32 32
33- :white_check_mark: - tested, works fine 33- :white_check_mark: - tested, works fine
34- :grey_question: - will work in the future (help out if you can) 34- :grey_question: - will work in the future (help out if you can)
diff --git a/tasks/postgres-cluster.yml b/tasks/postgres-cluster.yml
index c052982..a8e96c1 100644
--- a/tasks/postgres-cluster.yml
+++ b/tasks/postgres-cluster.yml
@@ -5,6 +5,7 @@
5 postgres_port: "{{ postgres_cluster.port }}" 5 postgres_port: "{{ postgres_cluster.port }}"
6 postgres_fsync_enabled: "{{ postgres_cluster.fsync_enabled }}" 6 postgres_fsync_enabled: "{{ postgres_cluster.fsync_enabled }}"
7 postgres_archive_enabled: "{{ postgres_cluster.archive_enabled }}" 7 postgres_archive_enabled: "{{ postgres_cluster.archive_enabled }}"
8 postgres_wal_level: "{{ postgres_cluster.wal_level|default('logical') }}"
8 postgres_max_replication_slots: "{{ postgres_cluster.max_replication_slots | default(10) }}" 9 postgres_max_replication_slots: "{{ postgres_cluster.max_replication_slots | default(10) }}"
9 postgres_extra_config: "{{ postgres_cluster.extra_config | default({}) }}" 10 postgres_extra_config: "{{ postgres_cluster.extra_config | default({}) }}"
10 barman_directory: "{{ postgres_cluster.barman_directory | default(None) }}" 11 barman_directory: "{{ postgres_cluster.barman_directory | default(None) }}"
@@ -19,7 +20,7 @@
19 apt: name=postgresql-{{ postgres_version }}-repack 20 apt: name=postgresql-{{ postgres_version }}-repack
20 when: 21 when:
21 - ansible_distribution_release != 'NA' 22 - ansible_distribution_release != 'NA'
22 - postgres_version in ['9.3', '9.4', '9.5', '9.6', '10', '11'] 23 - postgres_version in ['9.3', '9.4', '9.5', '9.6', '10', '11', '12']
23 24
24- name: Set initdb options 25- name: Set initdb options
25 set_fact: postgres_initdb_option="{% if postgres_checksums %}--data-checksums{% endif %}" 26 set_fact: postgres_initdb_option="{% if postgres_checksums %}--data-checksums{% endif %}"
@@ -82,9 +83,17 @@
82 83
83- name: Upload recovery.conf 84- name: Upload recovery.conf
84 template: src=recovery.conf.j2 dest=/var/lib/postgresql/{{ postgres_version }}/{{ postgres_cluster_name }}/recovery.conf owner=postgres group=postgres mode=0600 85 template: src=recovery.conf.j2 dest=/var/lib/postgresql/{{ postgres_version }}/{{ postgres_cluster_name }}/recovery.conf owner=postgres group=postgres mode=0600
85 when: postgres_primary 86 when: postgres_primary and postgres_version is version('12', '<')
86 no_log: True 87 no_log: True
87 88
89- name: Define secondary nodes as secondaries with corresponding signal files
90 file:
91 path: "{{ item }}"
92 state: touch
93 when: postgres_primary and postgres_version is version('12', '>=')
94 with_items:
95 - /var/lib/postgresql/{{ postgres_version }}/{{ postgres_cluster_name }}/standby.signal
96
88- name: Create log file 97- name: Create log file
89 file: 98 file:
90 path={{ postgres_log_dir }}/postgresql-{{ postgres_version }}-{{ postgres_cluster_name }}.log 99 path={{ postgres_log_dir }}/postgresql-{{ postgres_version }}-{{ postgres_cluster_name }}.log
diff --git a/templates/postgresql.12.conf.j2 b/templates/postgresql.12.conf.j2
new file mode 100644
index 0000000..b49b836
--- /dev/null
+++ b/templates/postgresql.12.conf.j2
@@ -0,0 +1,809 @@
1# {{ ansible_managed }}
2# -----------------------------
3# PostgreSQL configuration file
4# -----------------------------
5#
6# This file consists of lines of the form:
7#
8# name = value
9#
10# (The "=" is optional.) Whitespace may be used. Comments are introduced with
11# "#" anywhere on a line. The complete list of parameter names and allowed
12# values can be found in the PostgreSQL documentation.
13#
14# The commented-out settings shown in this file represent the default values.
15# Re-commenting a setting is NOT sufficient to revert it to the default value;
16# you need to reload the server.
17#
18# This file is read on server startup and when the server receives a SIGHUP
19# signal. If you edit the file on a running system, you have to SIGHUP the
20# server for the changes to take effect, run "pg_ctl reload", or execute
21# "SELECT pg_reload_conf()". Some parameters, which are marked below,
22# require a server shutdown and restart to take effect.
23#
24# Any parameter can also be given as a command-line option to the server, e.g.,
25# "postgres -c log_connections=on". Some parameters can be changed at run time
26# with the "SET" SQL command.
27#
28# Memory units: kB = kilobytes Time units: ms = milliseconds
29# MB = megabytes s = seconds
30# GB = gigabytes min = minutes
31# TB = terabytes h = hours
32# d = days
33
34
35#------------------------------------------------------------------------------
36# FILE LOCATIONS
37#------------------------------------------------------------------------------
38
39# The default values of these variables are driven from the -D command-line
40# option or PGDATA environment variable, represented here as ConfigDir.
41
42data_directory = '/var/lib/postgresql/{{ postgres_version }}/{{ postgres_cluster_name }}' # use data in another directory
43 # (change requires restart)
44hba_file = '/etc/postgresql/{{ postgres_version }}/{{ postgres_cluster_name }}/pg_hba.conf' # host-based authentication file
45 # (change requires restart)
46ident_file = '/etc/postgresql/{{ postgres_version }}/{{ postgres_cluster_name }}/pg_ident.conf' # ident configuration file
47 # (change requires restart)
48
49# If external_pid_file is not explicitly set, no extra PID file is written.
50external_pid_file = '/var/run/postgresql/{{ postgres_version }}-{{ postgres_cluster_name }}.pid' # write an extra PID file
51 # (change requires restart)
52
53
54#------------------------------------------------------------------------------
55# CONNECTIONS AND AUTHENTICATION
56#------------------------------------------------------------------------------
57
58# - Connection Settings -
59
60listen_addresses = '{{ postgres_listen_addresses | reject("none") | join(",") }}' # what IP address(es) to listen on;
61 # comma-separated list of addresses;
62 # defaults to 'localhost'; use '*' for all
63 # (change requires restart)
64port = {{ postgres_port }} # (change requires restart)
65max_connections = 400 # (change requires restart)
66#superuser_reserved_connections = 3 # (change requires restart)
67unix_socket_directories = '/var/run/postgresql' # comma-separated list of directories
68 # (change requires restart)
69#unix_socket_group = '' # (change requires restart)
70#unix_socket_permissions = 0777 # begin with 0 to use octal notation
71 # (change requires restart)
72#bonjour = off # advertise server via Bonjour
73 # (change requires restart)
74#bonjour_name = '' # defaults to the computer name
75 # (change requires restart)
76
77# - TCP settings -
78# see "man 7 tcp" for details
79
80#tcp_keepalives_idle = 0 # TCP_KEEPIDLE, in seconds;
81 # 0 selects the system default
82#tcp_keepalives_interval = 0 # TCP_KEEPINTVL, in seconds;
83 # 0 selects the system default
84#tcp_keepalives_count = 0 # TCP_KEEPCNT;
85 # 0 selects the system default
86#tcp_user_timeout = 0 # TCP_USER_TIMEOUT, in milliseconds;
87 # 0 selects the system default
88
89# - Authentication -
90
91#authentication_timeout = 1min # 1s-600s
92#password_encryption = md5 # md5 or scram-sha-256
93#db_user_namespace = off
94
95# GSSAPI using Kerberos
96#krb_server_keyfile = ''
97#krb_caseins_users = off
98
99# - SSL -
100
101ssl = on
102#ssl_ca_file = ''
103#ssl_cert_file = '/etc/ssl/certs/ssl-cert-snakeoil.pem'
104#ssl_crl_file = ''
105#ssl_key_file = '/etc/ssl/private/ssl-cert-snakeoil.key'
106#ssl_ciphers = 'HIGH:MEDIUM:+3DES:!aNULL' # allowed SSL ciphers
107#ssl_prefer_server_ciphers = on
108#ssl_ecdh_curve = 'prime256v1'
109#ssl_min_protocol_version = 'TLSv1'
110#ssl_max_protocol_version = ''
111#ssl_dh_params_file = ''
112#ssl_passphrase_command = ''
113#ssl_passphrase_command_supports_reload = off
114
115
116#------------------------------------------------------------------------------
117# RESOURCE USAGE (except WAL)
118#------------------------------------------------------------------------------
119
120# - Memory -
121
122{% if ansible_memtotal_mb > 65536 %}
123shared_buffers = 16GB # min 128kB
124{% else %}
125shared_buffers = {{ ansible_memtotal_mb // 4 }}MB # min 128kB
126{% endif %}
127 # (change requires restart)
128#huge_pages = try # on, off, or try
129 # (change requires restart)
130temp_buffers = 24MB # min 800kB
131#max_prepared_transactions = 0 # zero disables the feature
132 # (change requires restart)
133# Caution: it is not advisable to set max_prepared_transactions nonzero unless
134# you actively intend to use prepared transactions.
135work_mem = 512MB # min 64kB
136maintenance_work_mem = 1024MB # min 1MB
137#autovacuum_work_mem = -1 # min 1MB, or -1 to use maintenance_work_mem
138#max_stack_depth = 2MB # min 100kB
139#shared_memory_type = mmap # the default is the first option
140 # supported by the operating system:
141 # mmap
142 # sysv
143 # windows
144 # (change requires restart)
145dynamic_shared_memory_type = posix # the default is the first option
146 # supported by the operating system:
147 # posix
148 # sysv
149 # windows
150 # mmap
151 # (change requires restart)
152
153# - Disk -
154
155#temp_file_limit = -1 # limits per-process temp file space
156 # in kB, or -1 for no limit
157
158# - Kernel Resources -
159
160#max_files_per_process = 1000 # min 25
161 # (change requires restart)
162
163# - Cost-Based Vacuum Delay -
164
165#vacuum_cost_delay = 0 # 0-100 milliseconds (0 disables)
166#vacuum_cost_page_hit = 1 # 0-10000 credits
167#vacuum_cost_page_miss = 10 # 0-10000 credits
168#vacuum_cost_page_dirty = 20 # 0-10000 credits
169#vacuum_cost_limit = 200 # 1-10000 credits
170
171# - Background Writer -
172
173bgwriter_delay = 2000ms # 10-10000ms between rounds
174#bgwriter_lru_maxpages = 100 # max buffers written/round, 0 disables
175#bgwriter_lru_multiplier = 2.0 # 0-10.0 multiplier on buffers scanned/round
176#bgwriter_flush_after = 512kB # measured in pages, 0 disables
177
178# - Asynchronous Behavior -
179
180#effective_io_concurrency = 1 # 1-1000; 0 disables prefetching
181#max_worker_processes = 8 # (change requires restart)
182#max_parallel_maintenance_workers = 2 # taken from max_parallel_workers
183#max_parallel_workers_per_gather = 2 # taken from max_parallel_workers
184#parallel_leader_participation = on
185#max_parallel_workers = 8 # maximum number of max_worker_processes that
186 # can be used in parallel operations
187#old_snapshot_threshold = -1 # 1min-60d; -1 disables; 0 is immediate
188 # (change requires restart)
189#backend_flush_after = 0 # measured in pages, 0 disables
190
191
192#------------------------------------------------------------------------------
193# WRITE-AHEAD LOG
194#------------------------------------------------------------------------------
195
196# - Settings -
197
198wal_level = {{ postgres_wal_level }} # minimal, replica, or logical
199 # (change requires restart)
200{% if postgres_fsync_enabled %}
201#fsync = on # flush data to disk for crash safety
202 # (turning this off can cause
203 # unrecoverable data corruption)
204#synchronous_commit = on # synchronization level;
205 # off, local, remote_write, remote_apply, or on
206{% else %}
207fsync = off # turns forced synchronization on or off
208synchronous_commit = off # synchronization level;
209{% endif %}
210#wal_sync_method = fsync # the default is the first option
211 # supported by the operating system:
212 # open_datasync
213 # fdatasync (default on Linux)
214 # fsync
215 # fsync_writethrough
216 # open_sync
217#full_page_writes = on # recover from partial page writes
218#wal_compression = off # enable compression of full-page writes
219wal_log_hints = on # also do full page writes of non-critical updates
220 # (change requires restart)
221#wal_init_zero = on # zero-fill new WAL files
222#wal_recycle = on # recycle WAL files
223#wal_buffers = -1 # min 32kB, -1 sets based on shared_buffers
224 # (change requires restart)
225#wal_writer_delay = 200ms # 1-10000 milliseconds
226#wal_writer_flush_after = 1MB # measured in pages, 0 disables
227
228#commit_delay = 0 # range 0-100000, in microseconds
229#commit_siblings = 5 # range 1-1000
230
231# - Checkpoints -
232
233#checkpoint_timeout = 5min # range 30s-1d
234max_wal_size = 1GB
235min_wal_size = 80MB
236#checkpoint_completion_target = 0.5 # checkpoint target duration, 0.0 - 1.0
237#checkpoint_flush_after = 256kB # measured in pages, 0 disables
238#checkpoint_warning = 30s # 0 disables
239
240# - Archiving -
241
242{% if postgres_archive_enabled %}
243archive_mode = on
244archive_command = 'rsync -a %p barman@{{ postgres_barman_server }}:/var/lib/barman/{{ barman_directory }}/incoming/%f'
245{% else %}
246archive_mode = off
247archive_command = ''
248{% endif %}
249
250#archive_mode = off # enables archiving; off, on, or always
251 # (change requires restart)
252#archive_command = '' # command to use to archive a logfile segment
253 # placeholders: %p = path of file to archive
254 # %f = file name only
255 # e.g. 'test ! -f /mnt/server/archivedir/%f && cp %p /mnt/server/archivedir/%f'
256#archive_timeout = 0 # force a logfile segment switch after this
257 # number of seconds; 0 disables
258
259# - Archive Recovery -
260
261# These are only used in recovery mode.
262
263{% if postgres_primary %}
264{# In PG < 12 versions all the recovery settings were in a separate recovery.conf file #}
265restore_command = '/usr/bin/barman-wal-restore --user barman --parallel 8 {{ postgres_barman_server }} {{ postgres_primary.restore_directory }} %f %p' # command to use to restore an archived logfile segment
266 # placeholders: %p = path of file to restore
267 # %f = file name only
268 # e.g. 'cp /mnt/server/archivedir/%f %p'
269 # (change requires restart)
270{% else %}
271#restore_command = '' # command to use to restore an archived logfile segment
272 # placeholders: %p = path of file to restore
273 # %f = file name only
274 # e.g. 'cp /mnt/server/archivedir/%f %p'
275 # (change requires restart)
276{% endif %}
277#archive_cleanup_command = '' # command to execute at every restartpoint
278#recovery_end_command = '' # command to execute at completion of recovery
279
280# - Recovery Target -
281
282# Set these only when performing a targeted recovery.
283
284#recovery_target = '' # 'immediate' to end recovery as soon as a
285 # consistent state is reached
286 # (change requires restart)
287#recovery_target_name = '' # the named restore point to which recovery will proceed
288 # (change requires restart)
289#recovery_target_time = '' # the time stamp up to which recovery will proceed
290 # (change requires restart)
291#recovery_target_xid = '' # the transaction ID up to which recovery will proceed
292 # (change requires restart)
293#recovery_target_lsn = '' # the WAL LSN up to which recovery will proceed
294 # (change requires restart)
295#recovery_target_inclusive = on # Specifies whether to stop:
296 # just after the specified recovery target (on)
297 # just before the recovery target (off)
298 # (change requires restart)
299{% if postgres_primary %}
300{# In PG < 12 versions all the recovery settings were in a separate recovery.conf file #}
301recovery_target_timeline='latest' # 'current', 'latest', or timeline ID
302 # (change requires restart)
303{% else %}
304#recovery_target_timeline = 'latest' # 'current', 'latest', or timeline ID
305 # (change requires restart)
306{% endif %}
307#recovery_target_action = 'pause' # 'pause', 'promote', 'shutdown'
308 # (change requires restart)
309
310#------------------------------------------------------------------------------
311# REPLICATION
312#------------------------------------------------------------------------------
313
314# - Sending Servers -
315
316# Set these on the master and on any standby that will send replication data.
317
318#max_wal_senders = 10 # max number of walsender processes
319 # (change requires restart)
320wal_keep_segments = 16 # in logfile segments; 0 disables
321#wal_sender_timeout = 60s # in milliseconds; 0 disables
322
323{% if postgres_max_replication_slots is defined %}
324max_replication_slots = {{ postgres_max_replication_slots }} # max number of replication slots
325{% else %}
326#max_replication_slots = 10 # max number of replication slots
327{% endif %}
328 # (change requires restart)
329#track_commit_timestamp = off # collect timestamp of transaction commit
330 # (change requires restart)
331
332# - Master Server -
333
334# These settings are ignored on a standby server.
335
336#synchronous_standby_names = '' # standby servers that provide sync rep
337 # method to choose sync standbys, number of sync standbys,
338 # and comma-separated list of application_name
339 # from standby(s); '*' = all
340#vacuum_defer_cleanup_age = 0 # number of xacts by which cleanup is delayed
341
342# - Standby Servers -
343
344# These settings are ignored on a master server.
345
346{% if postgres_primary %}
347{# In PG < 12 versions this setting was defined in separate recovery.conf file #}
348primary_conninfo = 'host={{ postgres_primary.host }} port={{ postgres_primary.port }} user={{ postgres_primary.replication_user }} password={{ postgres_primary.replication_password }} sslmode=require' # connection string to sending server
349 # (change requires restart)
350{% else %}
351#primary_conninfo = '' # connection string to sending server
352 # (change requires restart)
353{% endif %}
354#primary_slot_name = '' # replication slot on sending server
355 # (change requires restart)
356{% if postgres_primary %}
357{# In PG < 12 versions this setting was defined in separate recovery.conf file #}
358promote_trigger_file = '/var/lib/postgresql/{{ postgres_version }}/{{ postgres_cluster_name }}/failover.trigger' # file name whose presence ends recovery
359{% else %}
360#promote_trigger_file = '' # file name whose presence ends recovery
361{% endif %}
362hot_standby = on # "off" disallows queries during recovery
363 # (change requires restart)
364#max_standby_archive_delay = 30s # max delay before canceling queries
365 # when reading WAL from archive;
366 # -1 allows indefinite delay
367max_standby_streaming_delay = {{ postgres_extra_config.max_standby_streaming_delay | default('600s') }} # max delay before canceling queries
368 # when reading streaming WAL;
369 # -1 allows indefinite delay
370#wal_receiver_status_interval = 10s # send replies at least this often
371 # 0 disables
372#hot_standby_feedback = off # send info from standby to prevent
373 # query conflicts
374#wal_receiver_timeout = 60s # time that receiver waits for
375 # communication from master
376 # in milliseconds; 0 disables
377#wal_retrieve_retry_interval = 5s # time to wait before retrying to
378 # retrieve WAL after a failed attempt
379#recovery_min_apply_delay = 0 # minimum delay for applying changes during recovery
380
381# - Subscribers -
382
383# These settings are ignored on a publisher.
384
385#max_logical_replication_workers = 4 # taken from max_worker_processes
386 # (change requires restart)
387#max_sync_workers_per_subscription = 2 # taken from max_logical_replication_workers
388
389
390#------------------------------------------------------------------------------
391# QUERY TUNING
392#------------------------------------------------------------------------------
393
394# - Planner Method Configuration -
395
396#enable_bitmapscan = on
397#enable_hashagg = on
398#enable_hashjoin = on
399#enable_indexscan = on
400#enable_indexonlyscan = on
401#enable_material = on
402#enable_mergejoin = on
403#enable_nestloop = on
404#enable_parallel_append = on
405#enable_seqscan = on
406#enable_sort = on
407#enable_tidscan = on
408#enable_partitionwise_join = off
409#enable_partitionwise_aggregate = off
410#enable_parallel_hash = on
411#enable_partition_pruning = on
412
413# - Planner Cost Constants -
414
415#seq_page_cost = 1.0 # measured on an arbitrary scale
416{% if postgres_specific_random_page_cost is defined -%}
417# Random page cost is an arbitrary value relative to the seq_page_cost conf (default 1.0)
418# On SSD disk it is better to lower the default value from 4.0 to 1.0 for instance.
419random_page_cost = {{ postgres_specific_random_page_cost }} # same scale as above
420{% else -%}
421#random_page_cost = 4.0 # same scale as above
422{% endif %}
423#cpu_tuple_cost = 0.01 # same scale as above
424#cpu_index_tuple_cost = 0.005 # same scale as above
425#cpu_operator_cost = 0.0025 # same scale as above
426#parallel_tuple_cost = 0.1 # same scale as above
427#parallel_setup_cost = 1000.0 # same scale as above
428
429#jit_above_cost = 100000 # perform JIT compilation if available
430 # and query more expensive than this;
431 # -1 disables
432#jit_inline_above_cost = 500000 # inline small functions if query is
433 # more expensive than this; -1 disables
434#jit_optimize_above_cost = 500000 # use expensive JIT optimizations if
435 # query is more expensive than this;
436 # -1 disables
437
438#min_parallel_table_scan_size = 8MB
439#min_parallel_index_scan_size = 512kB
440#effective_cache_size = 4GB
441effective_cache_size = {{ ansible_memtotal_mb // 2 }}MB
442
443# - Genetic Query Optimizer -
444
445#geqo = on
446#geqo_threshold = 12
447#geqo_effort = 5 # range 1-10
448#geqo_pool_size = 0 # selects default based on effort
449#geqo_generations = 0 # selects default based on effort
450#geqo_selection_bias = 2.0 # range 1.5-2.0
451#geqo_seed = 0.0 # range 0.0-1.0
452
453# - Other Planner Options -
454
455#default_statistics_target = 100 # range 1-10000
456#constraint_exclusion = partition # on, off, or partition
457#cursor_tuple_fraction = 0.1 # range 0.0-1.0
458#from_collapse_limit = 8
459#join_collapse_limit = 8 # 1 disables collapsing of explicit
460 # JOIN clauses
461#force_parallel_mode = off
462#jit = on # allow JIT compilation
463#plan_cache_mode = auto # auto, force_generic_plan or
464 # force_custom_plan
465
466
467#------------------------------------------------------------------------------
468# REPORTING AND LOGGING
469#------------------------------------------------------------------------------
470
471# - Where to Log -
472
473#log_destination = 'stderr' # Valid values are combinations of
474 # stderr, csvlog, syslog, and eventlog,
475 # depending on platform. csvlog
476 # requires logging_collector to be on.
477
478# This is used when logging to stderr:
479#logging_collector = off # Enable capturing of stderr and csvlog
480 # into log files. Required to be on for
481 # csvlogs.
482 # (change requires restart)
483
484# These are only used if logging_collector is on:
485#log_directory = 'log' # directory where log files are written,
486 # can be absolute or relative to PGDATA
487#log_filename = 'postgresql-%Y-%m-%d_%H%M%S.log' # log file name pattern,
488 # can include strftime() escapes
489#log_file_mode = 0600 # creation mode for log files,
490 # begin with 0 to use octal notation
491#log_truncate_on_rotation = off # If on, an existing log file with the
492 # same name as the new log file will be
493 # truncated rather than appended to.
494 # But such truncation only occurs on
495 # time-driven rotation, not on restarts
496 # or size-driven rotation. Default is
497 # off, meaning append to existing files
498 # in all cases.
499#log_rotation_age = 1d # Automatic rotation of logfiles will
500 # happen after that time. 0 disables.
501#log_rotation_size = 10MB # Automatic rotation of logfiles will
502 # happen after that much log output.
503 # 0 disables.
504
505# These are relevant when logging to syslog:
506#syslog_facility = 'LOCAL0'
507#syslog_ident = 'postgres'
508#syslog_sequence_numbers = on
509#syslog_split_messages = on
510
511# This is only relevant when logging to eventlog (win32):
512# (change requires restart)
513#event_source = 'PostgreSQL'
514
515# - When to Log -
516
517#log_min_messages = warning # values in order of decreasing detail:
518 # debug5
519 # debug4
520 # debug3
521 # debug2
522 # debug1
523 # info
524 # notice
525 # warning
526 # error
527 # log
528 # fatal
529 # panic
530
531#log_min_error_statement = error # values in order of decreasing detail:
532 # debug5
533 # debug4
534 # debug3
535 # debug2
536 # debug1
537 # info
538 # notice
539 # warning
540 # error
541 # log
542 # fatal
543 # panic (effectively off)
544
545log_min_duration_statement = 10000 # -1 is disabled, 0 logs all statements
546 # and their durations, > 0 logs only
547 # statements running at least this number
548 # of milliseconds
549
550#log_transaction_sample_rate = 0.0 # Fraction of transactions whose statements
551 # are logged regardless of their duration. 1.0 logs all
552 # statements from all transactions, 0.0 never logs.
553
554# - What to Log -
555
556#debug_print_parse = off
557#debug_print_rewritten = off
558#debug_print_plan = off
559#debug_pretty_print = on
560#log_checkpoints = off
561#log_connections = off
562#log_disconnections = off
563#log_duration = off
564#log_error_verbosity = default # terse, default, or verbose messages
565#log_hostname = off
566
567log_line_prefix = '{{ postgres_log_line_prefix }}'
568#log_line_prefix = '%m [%p] %q%u@%d ' # special values:
569 # %a = application name
570 # %u = user name
571 # %d = database name
572 # %r = remote host and port
573 # %h = remote host
574 # %p = process ID
575 # %t = timestamp without milliseconds
576 # %m = timestamp with milliseconds
577 # %n = timestamp with milliseconds (as a Unix epoch)
578 # %i = command tag
579 # %e = SQL state
580 # %c = session ID
581 # %l = session line number
582 # %s = session start timestamp
583 # %v = virtual transaction ID
584 # %x = transaction ID (0 if none)
585 # %q = stop here in non-session
586 # processes
587 # %% = '%'
588 # e.g. '<%u%%%d> '
589#log_lock_waits = off # log lock waits >= deadlock_timeout
590#log_statement = 'none' # none, ddl, mod, all
591#log_replication_commands = off
592#log_temp_files = -1 # log temporary files equal or larger
593 # than the specified size in kilobytes;
594 # -1 disables, 0 logs all temp files
595log_timezone = 'UTC'
596
597#------------------------------------------------------------------------------
598# PROCESS TITLE
599#------------------------------------------------------------------------------
600
601cluster_name = '{{ postgres_version }}/{{ postgres_cluster_name }}' # added to process titles if nonempty
602 # (change requires restart)
603#update_process_title = on
604
605
606#------------------------------------------------------------------------------
607# STATISTICS
608#------------------------------------------------------------------------------
609
610# - Query and Index Statistics Collector -
611
612#track_activities = on
613#track_counts = on
614#track_io_timing = off
615#track_functions = none # none, pl, all
616#track_activity_query_size = 1024 # (change requires restart)
617stats_temp_directory = '/var/run/postgresql/{{ postgres_version }}-{{ postgres_cluster_name }}.pg_stat_tmp'
618
619
620# - Monitoring -
621
622#log_parser_stats = off
623#log_planner_stats = off
624#log_executor_stats = off
625#log_statement_stats = off
626
627
628#------------------------------------------------------------------------------
629# AUTOVACUUM
630#------------------------------------------------------------------------------
631
632#autovacuum = on # Enable autovacuum subprocess? 'on'
633 # requires track_counts to also be on.
634#log_autovacuum_min_duration = -1 # -1 disables, 0 logs all actions and
635 # their durations, > 0 logs only
636 # actions running at least this number
637 # of milliseconds.
638#autovacuum_max_workers = 3 # max number of autovacuum subprocesses
639 # (change requires restart)
640#autovacuum_naptime = 1min # time between autovacuum runs
641#autovacuum_vacuum_threshold = 50 # min number of row updates before
642 # vacuum
643#autovacuum_analyze_threshold = 50 # min number of row updates before
644 # analyze
645#autovacuum_vacuum_scale_factor = 0.2 # fraction of table size before vacuum
646#autovacuum_analyze_scale_factor = 0.1 # fraction of table size before analyze
647#autovacuum_freeze_max_age = 200000000 # maximum XID age before forced vacuum
648 # (change requires restart)
649#autovacuum_multixact_freeze_max_age = 400000000 # maximum multixact age
650 # before forced vacuum
651 # (change requires restart)
652#autovacuum_vacuum_cost_delay = 2ms # default vacuum cost delay for
653 # autovacuum, in milliseconds;
654 # -1 means use vacuum_cost_delay
655#autovacuum_vacuum_cost_limit = -1 # default vacuum cost limit for
656 # autovacuum, -1 means use
657 # vacuum_cost_limit
658
659
660#------------------------------------------------------------------------------
661# CLIENT CONNECTION DEFAULTS
662#------------------------------------------------------------------------------
663
664# - Statement Behavior -
665
666#client_min_messages = notice # values in order of decreasing detail:
667 # debug5
668 # debug4
669 # debug3
670 # debug2
671 # debug1
672 # log
673 # notice
674 # warning
675 # error
676#search_path = '"$user", public' # schema names
677#row_security = on
678#default_tablespace = '' # a tablespace name, '' uses the default
679#temp_tablespaces = '' # a list of tablespace names, '' uses
680 # only default tablespace
681#default_table_access_method = 'heap'
682#check_function_bodies = on
683#default_transaction_isolation = 'read committed'
684#default_transaction_read_only = off
685#default_transaction_deferrable = off
686#session_replication_role = 'origin'
687#statement_timeout = 0 # in milliseconds, 0 is disabled
688#lock_timeout = 0 # in milliseconds, 0 is disabled
689#idle_in_transaction_session_timeout = 0 # in milliseconds, 0 is disabled
690#vacuum_freeze_min_age = 50000000
691#vacuum_freeze_table_age = 150000000
692#vacuum_multixact_freeze_min_age = 5000000
693#vacuum_multixact_freeze_table_age = 150000000
694#vacuum_cleanup_index_scale_factor = 0.1 # fraction of total number of tuples
695 # before index cleanup, 0 always performs
696 # index cleanup
697#bytea_output = 'hex' # hex, escape
698#xmlbinary = 'base64'
699#xmloption = 'content'
700#gin_fuzzy_search_limit = 0
701#gin_pending_list_limit = 4MB
702
703# - Locale and Formatting -
704
705datestyle = '{{ postgres_datestyle }}'
706#intervalstyle = 'postgres'
707#timezone = '(defaults to server environment setting)'
708{% if postgres_timezone is defined %}
709timezone = '{{ postgres_timezone }}'
710{% endif %}
711#timezone_abbreviations = 'Default' # Select the set of available time zone
712 # abbreviations. Currently, there are
713 # Default
714 # Australia (historical usage)
715 # India
716 # You can create your own file in
717 # share/timezonesets/.
718#extra_float_digits = 1 # min -15, max 3; any value >0 actually
719 # selects precise output mode
720#client_encoding = sql_ascii # actually, defaults to database
721 # encoding
722
723# These settings are initialized by initdb, but they can be changed.
724lc_messages = '{{ postgres_locale_system }}' # locale for system error message
725 # strings
726lc_monetary = '{{ postgres_locale_formats }}' # locale for monetary formatting
727lc_numeric = '{{ postgres_locale_formats }}' # locale for number formatting
728lc_time = '{{ postgres_locale_formats }}' # locale for time formatting
729
730# default configuration for text search
731default_text_search_config = '{{ postgres_text_search_config }}'
732
733# - Shared Library Preloading -
734
735#shared_preload_libraries = '' # (change requires restart)
736#local_preload_libraries = ''
737#session_preload_libraries = ''
738#jit_provider = 'llvmjit' # JIT library to use
739
740# - Other Defaults -
741
742#dynamic_library_path = '$libdir'
743
744
745#------------------------------------------------------------------------------
746# LOCK MANAGEMENT
747#------------------------------------------------------------------------------
748
749#deadlock_timeout = 1s
750#max_locks_per_transaction = 64 # min 10
751 # (change requires restart)
752#max_pred_locks_per_transaction = 64 # min 10
753 # (change requires restart)
754#max_pred_locks_per_relation = -2 # negative values mean
755 # (max_pred_locks_per_transaction
756 # / -max_pred_locks_per_relation) - 1
757#max_pred_locks_per_page = 2 # min 0
758
759
760#------------------------------------------------------------------------------
761# VERSION AND PLATFORM COMPATIBILITY
762#------------------------------------------------------------------------------
763
764# - Previous PostgreSQL Versions -
765
766#array_nulls = on
767#backslash_quote = safe_encoding # on, off, or safe_encoding
768#escape_string_warning = on
769#lo_compat_privileges = off
770#operator_precedence_warning = off
771#quote_all_identifiers = off
772#standard_conforming_strings = on
773#synchronize_seqscans = on
774
775# - Other Platforms and Clients -
776
777#transform_null_equals = off
778
779
780#------------------------------------------------------------------------------
781# ERROR HANDLING
782#------------------------------------------------------------------------------
783
784#exit_on_error = off # terminate session on any error?
785#restart_after_crash = on # reinitialize after backend crash?
786#data_sync_retry = off # retry or panic on failure to fsync
787 # data?
788 # (change requires restart)
789
790
791#------------------------------------------------------------------------------
792# CONFIG FILE INCLUDES
793#------------------------------------------------------------------------------
794
795# These options allow settings to be loaded from files other than the
796# default postgresql.conf. Note that these are directives, not variable
797# assignments, so they can usefully be given more than once.
798
799include_dir = 'conf.d' # include files ending in '.conf' from
800 # a directory, e.g., 'conf.d'
801#include_if_exists = '...' # include file only if it exists
802#include = '...' # include file
803
804
805#------------------------------------------------------------------------------
806# CUSTOMIZED OPTIONS
807#------------------------------------------------------------------------------
808
809# Add settings for extensions here
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-21 13:20:48 +0000