Remove the pgpool tasks and files.
This commit is contained in:
Andrea Dell'Amico
parent
87c1233658
commit
fe20da9822
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@ -124,17 +124,6 @@ psql_db_name: db_name
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psql_db_user: db_user
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psql_db_pwd: "We cannot save the password into the repository. Use another variable and change pgpass.j2 accordingly. Encrypt the file that contains the variable with ansible-vault"
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########
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#
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# Pgpool-II
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#
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# Those need to be installed on the postgresql server.
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#
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pgpool_version: '4.1.4'
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pgpool_fixed_version: '={{ pgpool_version }}-2.pgdg18.04+1'
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postgresql_pgpool_pkgs:
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- 'postgresql-{{ psql_version }}-pgpool2{{ pgpool_fixed_version }}'
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#psql_db_data:
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# Example of line needed to create a db, create the user that owns the db, manage the db accesses (used by iptables too). All the fields are mandatory.
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#- { name: '{{ psql_db_name }}', encoding: 'UTF8', user: '{{ psql_db_user }}', pwd: '{{ psql_db_pwd }}', roles: 'NOCREATEDB,NOSUPERUSER', extensions: [ 'postgis', 'pgpool_regclass', 'pgpool_recovery' ], allowed_hosts: [ 'xxx.xxx.xxx.xxx/32', 'yyy.yyy.yyy.yyy/32' ], managedb: True }
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@ -143,112 +132,6 @@ postgresql_pgpool_pkgs:
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# Example of line needed to remove a db, create the user that owns the db, manage the db accesses (used by iptables too). All the fields are mandatory.
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#- { name: '{{ psql_db_name }}', encoding: 'UTF8', user: '{{ psql_db_user }}', pwd: '{{ psql_db_pwd }}', managedb: True, roles: 'NOCREATEDB,NOSUPERUSER', extensions: [ 'postgis', 'pgpool_regclass', 'pgpool_recovery' ], allowed_hosts: [ 'xxx.xxx.xxx.xxx/32', 'yyy.yyy.yyy.yyy/32' ], state=absent }
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# pgpool-II
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pgpool_pkgs:
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- 'pgpool2{{ pgpool_fixed_version }}'
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- iputils-arping
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pgpool_el_pkgs:
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- 'pgpool-II-{{ psql_version }}'
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- 'pgpool-II-{{ psql_version }}-extensions'
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pgpool_enabled: True
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pgpool_listen_addresses: 'localhost'
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pgpool_port: 5433
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pgpool_listen_backlog_multiplier: 2
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pgpool_pcp_user: admin
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# Define pcp_pwd in a vault file
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pgpool_pcp_listen_addresses: '*'
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pgpool_pcp_port: 9898
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#pgpool_backends:
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# - { id: 0, hostname: 'backend0', backend_port: '{{ psql_db_port }}', backend_weight: 1, backend_data_directory: '{{ psql_data_dir }}', backend_flag: 'ALLOW_TO_FAILOVER' }
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pgpool_enable_pool_hba: 'on'
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pgpool_pool_passwd: 'pool_passwd'
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pgpool_num_init_children: 32
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pgpool_max_pool: 4
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pgpool_child_life_time: 300
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pgpool_child_max_connections: 0
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pgpool_connection_life_time: 0
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pgpool_client_idle_limit: 0
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pgpool_log_destination: syslog
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pgpool_log_connections: 'on'
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pgpool_log_hostname: 'on'
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pgpool_log_statement: 'off'
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pgpool_log_per_node_statement: 'off'
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pgpool_debug_level: 0
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pgpool_replication_mode: 'on'
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pgpool_replicate_select: 'off'
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pgpool_insert_lock: 'on'
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pgpool_lobj_lock_table: ''
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pgpool_replication_stop_on_mismatch: 'on'
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pgpool_failover_if_affected_tuples_mismatch: 'off'
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pgpool_recovery_timeout: 30
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pgpool_client_idle_limit_in_recovery: -1
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pgpool_load_balance_mode: 'on'
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pgpool_ignore_leading_white_space: 'on'
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pgpool_recovery_user: postgres
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# pgpool_recovery_user_pwd: use a vault file for this one
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pgpool_recovery_stage1_script: pgpool_recovery_stage_1
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pgpool_recovery_stage2_script: pgpool_recovery_stage_2
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pgpool_remote_start_script: pgpool_remote_start
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pgpool_white_function_list: ''
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pgpool_black_function_list: 'nextval,setval'
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pgpool_allow_sql_comments: 'on'
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pgpool_fail_over_on_backend_error: 'on'
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pgpool_relcache_expire: 3600
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#
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pgpool_memory_cache_enabled: False
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# memcached, shmem
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pgpool_memqcache_method: shmem
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pgpool_memqcache_memcached_host: localhost
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pgpool_memqcache_memcached_port: 11211
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pgpool_memqcache_expire: 0
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pgpool_memqcache_auto_cache_invalidation: 'on'
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pgpool_serialize_accept: 'off'
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# HA and watchdog
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pgpool_use_watchdog: 'off'
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pgpool_wd_trusted_servers: 'localhost,localhost'
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pgpool_wd_port: 9000
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pgpool_wd_priority: 1
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# Warning: setting pgpool_wd_heartbeat_mode to False enables
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# the 'query mode' that is untested and not working without manual intervention
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pgpool_wd_heartbeat_mode: True
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pgpool_wd_heartbeat_port: 9694
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pgpool_wd_heartbeat_keepalive_int: 3
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pgpool_wd_heartbeat_deadtime: 30
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pgpool_wd_heartbeat_dest0: 'localhost'
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pgpool_wd_heartbeat_dest0_port: '{{ pgpool_wd_heartbeat_port }}'
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#pgpool_wd_authkey: 'set it inside a vault file'
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# SSL as a special case
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pgpool_enable_ssl: False
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pgpool_letsencrypt_managed: True
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pgpool_ssl_key: /etc/pki/pgpool2/pgpool2.key
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pgpool_ssl_cert: '/var/lib/acme/live/{{ ansible_fqdn }}/cert'
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pgpool_ssl_ca: '/var/lib/acme/live/{{ ansible_fqdn }}/fullchain'
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pgpool_ssl_ca_dir: /etc/ssl/certs
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pgpool_virtual_ip: 127.0.0.1
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pgpool_virtual_netmask: 24
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# WAL files archiving is mandatory for pgpool recovery
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psql_wal_files_archiving_enabled: '{{ psql_pgpool_install }}'
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psql_restart_after_wal_enabling: True
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psql_wal_archiving_log_dir: '{{ psql_data_dir }}/archive_log'
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psql_base_backup_dir: '{{ pg_backup_base_dir }}/base_backup'
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psql_wal_files_conf:
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- { name: 'wal_level', value: 'archive', set: '{{ psql_wal_files_archiving_enabled }}' }
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- { name: 'wal_sync_method', value: 'fdatasync', set: '{{ psql_wal_files_archiving_enabled }}' }
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- { name: 'full_page_writes', value: 'on', set: '{{ psql_wal_files_archiving_enabled }}' }
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- { name: 'wal_log_hints', value: 'on', set: '{{ psql_wal_files_archiving_enabled }}' }
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- { name: 'archive_mode', value: 'on', set: '{{ psql_wal_files_archiving_enabled }}' }
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- { name: 'archive_command', value: "'test ! -f {{ psql_wal_archiving_log_dir }}/%f && cp %p {{ psql_wal_archiving_log_dir }}/%f'", set: '{{ psql_wal_files_archiving_enabled }}' }
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- { name: 'archive_timeout', value: '120', set: '{{ psql_wal_files_archiving_enabled }}' }
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- { name: 'max_wal_senders', value: '5', set: '{{ psql_wal_files_archiving_enabled }}' }
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- { name: 'wal_sender_timeout', value: '60s', set: '{{ psql_wal_files_archiving_enabled }}' }
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- { name: 'max_replication_slots', value: '5', set: '{{ psql_wal_files_archiving_enabled }}' }
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# postgis
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postgres_install_gis_extensions: False
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postgres_gis_version: 2.5
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@ -1,12 +0,0 @@
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#!/bin/bash
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#
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# Exec /usr/bin/arping as root via sudo
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RETVAL=
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CMD=/usr/bin/arping
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sudo $CMD $@
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RETVAL=$?
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exit $RETVAL
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@ -1,12 +0,0 @@
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#!/bin/bash
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#
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# Exec /sbin/ip as root via sudo
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RETVAL=
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CMD=/sbin/ip
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sudo $CMD $@
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RETVAL=$?
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exit $RETVAL
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@ -7,15 +7,6 @@
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service: name=postgresql state=reloaded
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when: ansible_distribution_file_variety == "Debian"
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- name: Reload pgpool2
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service: name=pgpool2 state=reloaded
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when: ansible_distribution_file_variety == "Debian"
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ignore_errors: True
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- name: Restart pgpool2
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service: name=pgpool2 state=restarted
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when: ansible_distribution_file_variety == "Debian"
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- name: Restart postgresql with pgpool config
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service: name=postgresql state=restarted
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when:
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@ -29,18 +20,3 @@
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- name: Reload postgresql
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service: name='postgresql-{{ psql_version }}' state=reloaded
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when: ansible_distribution_file_variety == "RedHat"
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- name: Reload pgpool2
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service: name='pgpool2-{{ psql_version }}' state=reloaded
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when: ansible_distribution_file_variety == "RedHat"
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ignore_errors: True
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- name: Restart pgpool2
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service: name='pgpool2-{{ psql_version }}' state=restarted
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when: ansible_distribution_file_variety == "RedHat"
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- name: Restart postgresql with pgpool config
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service: name='postgresql-{{ psql_version }}' state=restarted
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when:
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- ansible_distribution_file_variety == "RedHat"
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- psql_restart_after_wal_enabling
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@ -16,16 +16,11 @@ galaxy_info:
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- name: Ubuntu
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versions:
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- bionic
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- name: EL
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versions:
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- 7
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galaxy_tags:
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- postgresql
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dependencies:
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- src: git+https://gitea-s2i2s.isti.cnr.it/ISTI-ansible-roles/ansible-role-memcached.git
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version: master
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name: memcached
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state: latest
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when:
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- pgpool_memory_cache_enabled
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- pgpool_memqcache_method == "memcached"
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- pgpool_memqcache_memcached_host == "localhost"
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dependencies: []
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@ -18,21 +18,12 @@
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- psql_db_data is defined
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- import_tasks: postgresql-service-status.yml
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when: psql_postgresql_install
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- import_tasks: postgres_pgpool.yml
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when: psql_pgpool_install
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- import_tasks: manage_pg_db.yml
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when:
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- psql_postgresql_install
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- psql_db_data is defined
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- import_tasks: postgresql-backup.yml
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when: psql_postgresql_install
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- import_tasks: pgpool-ii.yml
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when: psql_pgpool_service_install
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- import_tasks: postgresql-letsencrypt-acmetool.yml
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when:
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- letsencrypt_acme_install is defined and letsencrypt_acme_install
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- import_tasks: pgpool-letsencrypt-acmetool.yml
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when:
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- letsencrypt_acme_install is defined and letsencrypt_acme_install
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@ -1,82 +0,0 @@
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---
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- block:
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- name: Install the pgpool package
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apt: name={{ pgpool_pkgs }} state={{ psql_pgpool_pkg_state }} cache_valid_time=1800
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- name: Configure pcp
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#template: src=pcp.conf.j2 dest=/etc/pgpool2/pcp.conf owner=root group=postgres mode=0640
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shell: pwd=`pg_md5 {{ pcp_pwd }}` ; echo "{{ pgpool_pcp_user }}:${pwd}" > /etc/pgpool2/pcp.conf ; chmod 640 /etc/pgpool2/pcp.conf; chown root:postgres /etc/pgpool2/pcp.conf
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- name: Install the pgpool configuration file
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template: src=pgpool.conf.j2 dest=/etc/pgpool2/pgpool.conf owner=root group=postgres mode=0640
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notify: Restart pgpool2
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- name: Give access to the remote postgresql clients
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lineinfile: name=/etc/pgpool2/pool_hba.conf regexp="^host {{ item.0.name }} {{ item.0.user }} {{ item.1 }}.*$" line="host {{ item.0.name }} {{ item.0.user }} {{ item.1 }} md5"
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with_subelements:
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- '{{ psql_db_data | default([]) }}'
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- allowed_hosts
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when:
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- psql_db_data is defined
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- item.1 is defined
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notify: Reload pgpool2
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- name: Create the pki directory to store the pgpool key
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file: dest=/etc/pki/pgpool2 state=directory owner=postgres group=postgres mode=0750
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when: pgpool_enable_ssl
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- name: Create a pgpool accessible ssl key file if it does not exist
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copy: src=/var/lib/acme/live/{{ ansible_fqdn }}/privkey dest=/etc/pki/pgpool2/pgpool2.key owner=postgres group=postgres mode=0400 remote_src=True
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when: pgpool_enable_ssl
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- name: Install the pool_passwd configuration file
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shell: cd /etc/pgpool2 ; pg_md5 -m -u {{ item.user }} {{ item.pwd }} ; chown root:postgres /etc/pgpool2/pool_passwd ; chmod 660 /etc/pgpool2/pool_passwd
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with_items: '{{ psql_db_data | default([]) }}'
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- name: Install the sudoers config that permits pgpool change the network configuration during a failover
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template: src=pgpool-wd-sudoers.j2 dest=/etc/sudoers.d/pgpool-wd owner=root group=root mode=0440
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- name: Install the ip script that manage the network configuration during a failover
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copy: src={{ item }} dest=/sbin/{{ item }} owner=root group=root mode=0755
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with_items:
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- ip_script
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- name: Install the arping scripts that manage the network configuration during a failover
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copy: src={{ item }} dest=/usr/local/bin/{{ item }} owner=root group=root mode=0755
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with_items:
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- arping_script
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- name: Start and enable pgpool2
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service: name=pgpool2 state=started enabled=yes
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when:
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- pgpool_enabled
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- ansible_distribution_file_variety == "Debian"
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tags: [ 'postgresql', 'postgres', 'pgpool', 'pcp_conf', 'pgpool_conf' ]
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- block:
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- name: Stop and disable pgpool2
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service: name=pgpool2 state=stopped enabled=no
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- name: Install the pgpool packages
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apt: name={{ pgpool_pkgs }} state=absent
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- name: Remove the pgpool failover sudoers file
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file: dest=/etc/sudoers.d/pgpool-wd state=absent
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- name: Remove the pgpool configuration directory
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file: dest=/etc/pgpool2 state=absent
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- name: Remove the scripts that manage the network configuration during a failover
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file: dest={{ item }} state=absent
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with_items:
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- /sbin/ip_script
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- /usr/local/bin/arping_script
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when:
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- not pgpool_enabled
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- ansible_distribution_file_variety == "Debian"
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tags: [ 'postgresql', 'postgres', 'pgpool' ]
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@ -1,23 +0,0 @@
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---
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- block:
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- name: Create the acme hooks directory if it does not yet exist
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file: dest={{ letsencrypt_acme_services_scripts_dir }} state=directory owner=root group=root
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- name: Install a script that fix the letsencrypt certificate for pgpool and then reloads the service
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template: src=pgpool-letsencrypt-acme.sh.j2 dest={{ letsencrypt_acme_services_scripts_dir }}/pgpool owner=root group=root mode=4555
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when:
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- psql_pgpool_service_install
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- pgpool_letsencrypt_managed
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- letsencrypt_acme_install
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tags: [ 'postgresql', 'postgres', 'pgpool', 'letsencrypt', 'pgpool_acme_hook' ]
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- block:
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- name: Remove the letsencrypt hook for pgpool
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file: dest=/usr/lib/acme/hooks/pgpool state=absent
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when:
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- psql_pgpool_service_install
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- not pgpool_letsencrypt_managed
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tags: [ 'postgresql', 'postgres', 'pgpool', 'letsencrypt', 'pgpool_acme_hook' ]
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@ -1,82 +0,0 @@
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---
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- name: Install the packages needed by postgres when running behind a pgpool server
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apt: pkg={{ postgresql_pgpool_pkgs }} state={{ psql_pkg_state }} cache_valid_time=3600
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notify: Restart postgresql
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when:
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- psql_pgpool_install
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- ansible_distribution_file_variety == "Debian"
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tags: [ 'postgresql', 'postgres', 'pgpool' ]
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- name: PgPool II configuration
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block:
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- name: Add the postgres user that will manage the recovery, if not postgres
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become: True
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become_user: postgres
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postgresql_user: user={{ pgpool_recovery_user }} password={{ pgpool_recovery_user_pwd }} role_attr_flags=REPLICATION port={{ psql_db_port }}
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when:
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- ('{{ pgpool_recovery_user }}' != 'postgres')
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- pgpool_recovery_user_pwd is defined
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- name: Give access to the pgpool recovery user, if it is not postgres
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lineinfile: name={{ psql_conf_dir }}/pg_hba.conf regexp="^host {{ item.0.name }} {{ pgpool_recovery_user }} {{ item.1 }}.*$" line="host {{ item.0.name }} {{ pgpool_recovery_user }} {{ item.1 }} md5"
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with_subelements:
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- '{{ psql_db_data | default([]) }}'
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- allowed_hosts
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when:
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- psql_db_data is defined
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- item.1 is defined
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- pgpool_recovery_user_pwd is defined
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notify: Reload postgresql
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- name: Add the system user that will manage the recovery, if not postgres
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user: user={{ pgpool_recovery_user }} password={{ pgpool_recovery_user_pwd | password_hash('sha512') }} groups=postgres shell=/bin/bash system=yes
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when:
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- ('{{ pgpool_recovery_user }}' != 'postgres')
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- pgpool_recovery_user_pwd is defined
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- name: Create the ssh keys for the recovery user
|
||||
user: user={{ pgpool_recovery_user }} generate_ssh_key=yes ssh_key_bits=2048 ssh_key_file=.ssh/id_rsa ssh_key_type=rsa
|
||||
|
||||
- name: Remember to trust the ssh keys between the two nodes
|
||||
debug:
|
||||
msg: "Remember to trust the ssh keys between the two nodes. You have to setup the .ssh/authorized_keys manually for the user {{ pgpool_recovery_user }}"
|
||||
|
||||
- name: Install the pgpool recovery and remote restart scripts. They assume that the postgresql hosts can talk to each other
|
||||
template: src={{ item.1 }}.j2 dest={{ item.0.backend_data_directory }}/{{ item.1 }} owner=postgres group=postgres mode=0500
|
||||
with_nested:
|
||||
- '{{ pgpool_backends | default([]) }}'
|
||||
- [ '{{ pgpool_recovery_stage1_script }}', '{{ pgpool_recovery_stage2_script }}', '{{ pgpool_remote_start_script }}' ]
|
||||
|
||||
- name: Set the postgresql configuration parameters needed by pgpool
|
||||
action: configfile path={{ psql_conf_dir }}/postgresql.conf key={{ item.name }} value="{{ item.value }}"
|
||||
with_items: '{{ psql_wal_files_conf }}'
|
||||
when:
|
||||
- item.set
|
||||
- psql_wal_files_archiving_enabled
|
||||
notify: Restart postgresql with pgpool config
|
||||
tags: [ 'postgresql', 'postgres', 'pg_conf', 'pgpool' ]
|
||||
|
||||
- name: Ensure that the postgresql config file has the correct permissions
|
||||
file: dest={{ psql_conf_dir }}/postgresql.conf owner=root group=postgres mode='0440'
|
||||
tags: [ 'postgresql', 'postgres', 'pg_conf', 'pgpool' ]
|
||||
|
||||
- name: Add the pgpool postgres extensions to the template1 dbs
|
||||
become: True
|
||||
become_user: postgres
|
||||
postgresql_ext: name={{ item }} db=template1 port={{ psql_db_port }}
|
||||
with_items:
|
||||
- pgpool_regclass
|
||||
- pgpool_recovery
|
||||
tags: [ 'postgresql', 'postgres', 'pg_extensions' ]
|
||||
|
||||
- name: Install the sudoers config that permits the postgres user to restart the service after a recovery
|
||||
template: src=postgresql-sudoers.j2 dest=/etc/sudoers.d/postgres-pgpool owner=root group=root mode=0440
|
||||
tags: [ 'postgres', 'postgresql', 'sudo', 'pgpool' ]
|
||||
|
||||
- name: Install a script that cleans up the wal log archives
|
||||
template: src=postgresql_wal_backup_and_removal.j2 dest=/usr/local/sbin/postgresql_wal_backup_and_removal owner=root group=root mode=0755
|
||||
|
||||
- name: Install a cron job to cleanup the wal log archives
|
||||
cron: name="Clean up the postgresql WAL log archives" user=postgres job="/usr/local/sbin/postgresql_wal_backup_and_removal > {{ psql_log_dir }}/wal_removal.log 2>&1" special_time=daily
|
||||
|
||||
tags: [ 'postgresql', 'postgres', 'pgpool' ]
|
||||
|
|
@ -1 +0,0 @@
|
|||
{{ pgpool_pcp_user }}:{{ '{{ pcp_pwd }}' | pg_md5 }}
|
||||
|
|
@ -1,52 +0,0 @@
|
|||
#!/bin/bash
|
||||
|
||||
H_NAME=$( hostname -f )
|
||||
LE_SERVICES_SCRIPT_DIR=/usr/lib/acme/hooks
|
||||
LE_CERTS_DIR=/var/lib/acme/live/$H_NAME
|
||||
LE_LOG_DIR=/var/log/letsencrypt
|
||||
PGPOOL2_CERTDIR=/etc/pki/pgpool2
|
||||
PGPOOL2_KEYFILE=$PGPOOL2_CERTDIR/pgpool2.key
|
||||
DATE=$( date )
|
||||
|
||||
[ ! -d $PGPOOL2_CERTDIR ] && mkdir -p $PGPOOL2_CERTDIR
|
||||
[ ! -d $LE_LOG_DIR ] && mkdir $LE_LOG_DIR
|
||||
echo "$DATE" >> $LE_LOG_DIR/pgpool2.log
|
||||
|
||||
if [ -f /etc/default/letsencrypt ] ; then
|
||||
. /etc/default/letsencrypt
|
||||
else
|
||||
echo "No letsencrypt default file" >> $LE_LOG_DIR/pgpool2.log
|
||||
fi
|
||||
|
||||
logger "acme-pgpool-hook: Check if the certificate has been renewed"
|
||||
cmp ${LE_CERTS_DIR}/privkey ${PGPOOL2_KEYFILE}
|
||||
RETVAL=$?
|
||||
if [ $RETVAL -eq 0 ] ; then
|
||||
logger "acme-pgpool-hook: No new cerficate. Doing nothing"
|
||||
exit 0
|
||||
fi
|
||||
|
||||
logger "acme-pgpool-hook: Copying the key file"
|
||||
echo "Copy the key file" >> $LE_LOG_DIR/pgpool2.log
|
||||
cp ${LE_CERTS_DIR}/privkey ${PGPOOL2_KEYFILE}
|
||||
chmod 440 ${PGPOOL2_KEYFILE}
|
||||
chown root ${PGPOOL2_KEYFILE}
|
||||
chgrp postgres ${PGPOOL2_KEYFILE}
|
||||
|
||||
logger "acme-pgpool-hook: Reload the postgresql service after a certificate renewal"
|
||||
echo "Reload the pgpool2 service" >> $LE_LOG_DIR/pgpool2.log
|
||||
if [ -x /bin/systemctl ] ; then
|
||||
{% if ansible_distribution_file_variety == "Debian" %}
|
||||
systemctl reload pgpool2 >> $LE_LOG_DIR/pgpool2.log 2>&1
|
||||
{% else %}
|
||||
systemctl reload pgpool2-{{ psql_version }} >> $LE_LOG_DIR/pgpool2.log 2>&1
|
||||
{% endif %}
|
||||
else
|
||||
service pgpool2 reload >> $LE_LOG_DIR/pgpool2.log 2>&1
|
||||
fi
|
||||
|
||||
logger "acme-pgpool-hook: Done"
|
||||
echo "Done." >> $LE_LOG_DIR/pgpool2.log
|
||||
|
||||
exit 0
|
||||
|
||||
|
|
@ -1,3 +0,0 @@
|
|||
{{ pgpool_recovery_user }} ALL=(ALL) NOPASSWD: /bin/ip
|
||||
{{ pgpool_recovery_user }} ALL=(ALL) NOPASSWD: /usr/bin/arping
|
||||
|
||||
|
|
@ -1,693 +0,0 @@
|
|||
# ----------------------------
|
||||
# pgPool-II configuration file
|
||||
# ----------------------------
|
||||
#
|
||||
# This file consists of lines of the form:
|
||||
#
|
||||
# name = value
|
||||
#
|
||||
# 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
|
||||
# pgPool-II documentation.
|
||||
#
|
||||
# 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 "pgpool reload". Some
|
||||
# parameters, which are marked below, require a server shutdown and restart to
|
||||
# take effect.
|
||||
#
|
||||
|
||||
|
||||
#------------------------------------------------------------------------------
|
||||
# CONNECTIONS
|
||||
#------------------------------------------------------------------------------
|
||||
|
||||
# - pgpool Connection Settings -
|
||||
|
||||
listen_addresses = '{{ pgpool_listen_addresses }}'
|
||||
# Host name or IP address to listen on:
|
||||
# '*' for all, '' for no TCP/IP connections
|
||||
# (change requires restart)
|
||||
port = {{ pgpool_port }}
|
||||
# Port number
|
||||
# (change requires restart)
|
||||
socket_dir = '/var/run/postgresql'
|
||||
# Unix domain socket path
|
||||
# The Debian package defaults to
|
||||
# /var/run/postgresql
|
||||
# (change requires restart)
|
||||
listen_backlog_multiplier = {{ pgpool_listen_backlog_multiplier }}
|
||||
# Set the backlog parameter of listen(2) to
|
||||
# num_init_children * listen_backlog_multiplier.
|
||||
# (change requires restart)
|
||||
|
||||
# - pgpool Communication Manager Connection Settings -
|
||||
|
||||
pcp_listen_addresses = '{{ pgpool_pcp_listen_addresses }}'
|
||||
# Host name or IP address for pcp process to listen on:
|
||||
# '*' for all, '' for no TCP/IP connections
|
||||
# (change requires restart)
|
||||
pcp_port = {{ pgpool_pcp_port }}
|
||||
# Port number for pcp
|
||||
# (change requires restart)
|
||||
pcp_socket_dir = '/var/run/postgresql'
|
||||
# Unix domain socket path for pcp
|
||||
# The Debian package defaults to
|
||||
# /var/run/postgresql
|
||||
# (change requires restart)
|
||||
|
||||
# - Backend Connection Settings -
|
||||
|
||||
{% for bk in pgpool_backends %}
|
||||
backend_hostname{{ bk.id}} = '{{ bk.hostname }}'
|
||||
backend_port{{ bk.id }} = {{ bk.backend_port }}
|
||||
backend_weight{{ bk.id }} = {{ bk.backend_weight }}
|
||||
backend_data_directory{{ bk.id }} = '{{ bk.backend_data_directory }}'
|
||||
backend_flag{{ bk.id }} = '{{ bk.backend_flag }}'
|
||||
{% endfor %}
|
||||
# - Authentication -
|
||||
|
||||
enable_pool_hba = {{ pgpool_enable_pool_hba }}
|
||||
# Use pool_hba.conf for client authentication
|
||||
pool_passwd = '{{ pgpool_pool_passwd }}'
|
||||
# File name of pool_passwd for md5 authentication.
|
||||
# "" disables pool_passwd.
|
||||
# (change requires restart)
|
||||
authentication_timeout = 60
|
||||
# Delay in seconds to complete client authentication
|
||||
# 0 means no timeout.
|
||||
|
||||
{% if pgpool_enable_ssl %}
|
||||
# - SSL Connections -
|
||||
ssl = on
|
||||
ssl_key = '{{ pgpool_ssl_key }}'
|
||||
ssl_cert = '{{ pgpool_ssl_cert }}'
|
||||
ssl_ca_cert = '{{ pgpool_ssl_ca }}'
|
||||
ssl_ca_cert_dir = '{{ pgpool_ssl_ca_dir }}'
|
||||
{% endif %}
|
||||
|
||||
#------------------------------------------------------------------------------
|
||||
# POOLS
|
||||
#------------------------------------------------------------------------------
|
||||
|
||||
# - Pool size -
|
||||
|
||||
num_init_children = {{ pgpool_num_init_children }}
|
||||
# Number of pools
|
||||
# (change requires restart)
|
||||
max_pool = {{ pgpool_max_pool }}
|
||||
# Number of connections per pool
|
||||
# (change requires restart)
|
||||
|
||||
# - Life time -
|
||||
|
||||
child_life_time = {{ pgpool_child_life_time }}
|
||||
# Pool exits after being idle for this many seconds
|
||||
child_max_connections = {{ pgpool_child_max_connections }}
|
||||
# Pool exits after receiving that many connections
|
||||
# 0 means no exit
|
||||
connection_life_time = {{ pgpool_connection_life_time }}
|
||||
# Connection to backend closes after being idle for this many seconds
|
||||
# 0 means no close
|
||||
client_idle_limit = {{ pgpool_client_idle_limit }}
|
||||
# Client is disconnected after being idle for that many seconds
|
||||
# (even inside an explicit transactions!)
|
||||
# 0 means no disconnection
|
||||
|
||||
|
||||
#------------------------------------------------------------------------------
|
||||
# LOGS
|
||||
#------------------------------------------------------------------------------
|
||||
|
||||
# - Where to log -
|
||||
|
||||
log_destination = '{{ pgpool_log_destination }}'
|
||||
# Where to log
|
||||
# Valid values are combinations of stderr,
|
||||
# and syslog. Default to stderr.
|
||||
|
||||
# - What to log -
|
||||
|
||||
log_line_prefix = '%t: pid %p: ' # printf-style string to output at beginning of each log line.
|
||||
|
||||
log_connections = {{ pgpool_log_connections }}
|
||||
# Log connections
|
||||
log_hostname = {{ pgpool_log_hostname }}
|
||||
# Hostname will be shown in ps status
|
||||
# and in logs if connections are logged
|
||||
log_statement = {{ pgpool_log_statement }}
|
||||
# Log all statements
|
||||
log_per_node_statement = {{ pgpool_log_per_node_statement }}
|
||||
# Log all statements
|
||||
# with node and backend informations
|
||||
log_standby_delay = 'none'
|
||||
# Log standby delay
|
||||
# Valid values are combinations of always,
|
||||
# if_over_threshold, none
|
||||
|
||||
# - Syslog specific -
|
||||
|
||||
syslog_facility = 'LOCAL0'
|
||||
# Syslog local facility. Default to LOCAL0
|
||||
syslog_ident = 'pgpool'
|
||||
# Syslog program identification string
|
||||
# Default to 'pgpool'
|
||||
|
||||
# - Debug -
|
||||
|
||||
debug_level = {{ pgpool_debug_level }}
|
||||
# Debug message verbosity level
|
||||
# 0 means no message, 1 or more mean verbose
|
||||
|
||||
#log_error_verbosity = default # terse, default, or verbose messages
|
||||
|
||||
#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
|
||||
|
||||
#------------------------------------------------------------------------------
|
||||
# FILE LOCATIONS
|
||||
#------------------------------------------------------------------------------
|
||||
|
||||
pid_file_name = '/var/run/postgresql/pgpool.pid'
|
||||
# PID file name
|
||||
# (change requires restart)
|
||||
logdir = '/var/log/postgresql'
|
||||
# Directory of pgPool status file
|
||||
# (change requires restart)
|
||||
|
||||
|
||||
#------------------------------------------------------------------------------
|
||||
# CONNECTION POOLING
|
||||
#------------------------------------------------------------------------------
|
||||
|
||||
connection_cache = on
|
||||
# Activate connection pools
|
||||
# (change requires restart)
|
||||
|
||||
# Semicolon separated list of queries
|
||||
# to be issued at the end of a session
|
||||
# The default is for 8.3 and later
|
||||
reset_query_list = 'ABORT; DISCARD ALL'
|
||||
# The following one is for 8.2 and before
|
||||
#reset_query_list = 'ABORT; RESET ALL; SET SESSION AUTHORIZATION DEFAULT'
|
||||
|
||||
serialize_accept = {{ pgpool_serialize_accept }}
|
||||
|
||||
|
||||
#------------------------------------------------------------------------------
|
||||
# REPLICATION MODE
|
||||
#------------------------------------------------------------------------------
|
||||
|
||||
replication_mode = {{ pgpool_replication_mode }}
|
||||
# Activate replication mode
|
||||
# (change requires restart)
|
||||
replicate_select = {{ pgpool_replicate_select }}
|
||||
# Replicate SELECT statements
|
||||
# when in replication mode
|
||||
# replicate_select is higher priority than
|
||||
# load_balance_mode.
|
||||
|
||||
insert_lock = {{ pgpool_insert_lock }}
|
||||
# Automatically locks a dummy row or a table
|
||||
# with INSERT statements to keep SERIAL data
|
||||
# consistency
|
||||
# Without SERIAL, no lock will be issued
|
||||
lobj_lock_table = '{{ pgpool_lobj_lock_table }}'
|
||||
# When rewriting lo_creat command in
|
||||
# replication mode, specify table name to
|
||||
# lock
|
||||
|
||||
# - Degenerate handling -
|
||||
|
||||
replication_stop_on_mismatch = {{ pgpool_replication_stop_on_mismatch }}
|
||||
# On disagreement with the packet kind
|
||||
# sent from backend, degenerate the node
|
||||
# which is most likely "minority"
|
||||
# If off, just force to exit this session
|
||||
|
||||
failover_if_affected_tuples_mismatch = {{ pgpool_failover_if_affected_tuples_mismatch }}
|
||||
# On disagreement with the number of affected
|
||||
# tuples in UPDATE/DELETE queries, then
|
||||
# degenerate the node which is most likely
|
||||
# "minority".
|
||||
# If off, just abort the transaction to
|
||||
# keep the consistency
|
||||
|
||||
|
||||
#------------------------------------------------------------------------------
|
||||
# LOAD BALANCING MODE
|
||||
#------------------------------------------------------------------------------
|
||||
|
||||
load_balance_mode = {{ pgpool_load_balance_mode }}
|
||||
# Activate load balancing mode
|
||||
# (change requires restart)
|
||||
ignore_leading_white_space = {{ pgpool_ignore_leading_white_space }}
|
||||
# Ignore leading white spaces of each query
|
||||
white_function_list = '{{ pgpool_white_function_list }}'
|
||||
# Comma separated list of function names
|
||||
# that don't write to database
|
||||
# Regexp are accepted
|
||||
black_function_list = '{{ pgpool_black_function_list }}'
|
||||
# Comma separated list of function names
|
||||
# that write to database
|
||||
# Regexp are accepted
|
||||
|
||||
database_redirect_preference_list = ''
|
||||
# comma separated list of pairs of database and node id.
|
||||
# example: postgres:primary,mydb[0-4]:1,mydb[5-9]:2'
|
||||
# valid for streaming replicaton mode only.
|
||||
|
||||
app_name_redirect_preference_list = ''
|
||||
# comma separated list of pairs of app name and node id.
|
||||
# example: 'psql:primary,myapp[0-4]:1,myapp[5-9]:standby'
|
||||
# valid for streaming replicaton mode only.
|
||||
allow_sql_comments = {{ pgpool_allow_sql_comments }}
|
||||
# if on, ignore SQL comments when judging if load balance or
|
||||
# query cache is possible.
|
||||
# If off, SQL comments effectively prevent the judgment
|
||||
# (pre 3.4 behavior).
|
||||
|
||||
#------------------------------------------------------------------------------
|
||||
# MASTER/SLAVE MODE
|
||||
#------------------------------------------------------------------------------
|
||||
|
||||
master_slave_mode = off
|
||||
# Activate master/slave mode
|
||||
# (change requires restart)
|
||||
master_slave_sub_mode = 'slony'
|
||||
# Master/slave sub mode
|
||||
# Valid values are combinations slony or
|
||||
# stream. Default is slony.
|
||||
# (change requires restart)
|
||||
|
||||
# - Streaming -
|
||||
|
||||
sr_check_period = 0
|
||||
# Streaming replication check period
|
||||
# Disabled (0) by default
|
||||
sr_check_user = 'nobody'
|
||||
# Streaming replication check user
|
||||
# This is neccessary even if you disable streaming
|
||||
# replication delay check by sr_check_period = 0
|
||||
sr_check_password = ''
|
||||
# Password for streaming replication check user
|
||||
delay_threshold = 0
|
||||
# Threshold before not dispatching query to standby node
|
||||
# Unit is in bytes
|
||||
# Disabled (0) by default
|
||||
|
||||
# - Special commands -
|
||||
|
||||
follow_master_command = ''
|
||||
# Executes this command after master failover
|
||||
# Special values:
|
||||
# %d = node id
|
||||
# %h = host name
|
||||
# %p = port number
|
||||
# %D = database cluster path
|
||||
# %m = new master node id
|
||||
# %H = hostname of the new master node
|
||||
# %M = old master node id
|
||||
# %P = old primary node id
|
||||
# %r = new master port number
|
||||
# %R = new master database cluster path
|
||||
# %% = '%' character
|
||||
|
||||
#------------------------------------------------------------------------------
|
||||
# HEALTH CHECK
|
||||
#------------------------------------------------------------------------------
|
||||
|
||||
health_check_period = 0
|
||||
# Health check period
|
||||
# Disabled (0) by default
|
||||
health_check_timeout = 20
|
||||
# Health check timeout
|
||||
# 0 means no timeout
|
||||
health_check_user = 'nobody'
|
||||
# Health check user
|
||||
health_check_password = ''
|
||||
# Password for health check user
|
||||
health_check_max_retries = 0
|
||||
# Maximum number of times to retry a failed health check before giving up.
|
||||
health_check_retry_delay = 1
|
||||
# Amount of time to wait (in seconds) between retries.
|
||||
connect_timeout = 10000
|
||||
# Timeout value in milliseconds before giving up to connect to backend.
|
||||
# Default is 10000 ms (10 second). Flaky network user may want to increase
|
||||
# the value. 0 means no timeout.
|
||||
# Note that this value is not only used for health check,
|
||||
# but also for ordinary conection to backend.
|
||||
|
||||
#------------------------------------------------------------------------------
|
||||
# FAILOVER AND FAILBACK
|
||||
#------------------------------------------------------------------------------
|
||||
|
||||
failover_command = ''
|
||||
# Executes this command at failover
|
||||
# Special values:
|
||||
# %d = node id
|
||||
# %h = host name
|
||||
# %p = port number
|
||||
# %D = database cluster path
|
||||
# %m = new master node id
|
||||
# %H = hostname of the new master node
|
||||
# %M = old master node id
|
||||
# %P = old primary node id
|
||||
# %r = new master port number
|
||||
# %R = new master database cluster path
|
||||
# %% = '%' character
|
||||
failback_command = ''
|
||||
# Executes this command at failback.
|
||||
# Special values:
|
||||
# %d = node id
|
||||
# %h = host name
|
||||
# %p = port number
|
||||
# %D = database cluster path
|
||||
# %m = new master node id
|
||||
# %H = hostname of the new master node
|
||||
# %M = old master node id
|
||||
# %P = old primary node id
|
||||
# %r = new master port number
|
||||
# %R = new master database cluster path
|
||||
# %% = '%' character
|
||||
|
||||
{% if pgpool_version is version_compare('4.1.4', '>=') %}
|
||||
failover_on_backend_error = {{ pgpool_fail_over_on_backend_error }}
|
||||
{% else %}
|
||||
fail_over_on_backend_error = {{ pgpool_fail_over_on_backend_error }}
|
||||
{% endif %}
|
||||
# Initiates failover when reading/writing to the
|
||||
# backend communication socket fails
|
||||
# If set to off, pgpool will report an
|
||||
# error and disconnect the session.
|
||||
|
||||
search_primary_node_timeout = 10
|
||||
# Timeout in seconds to search for the
|
||||
# primary node when a failover occurs.
|
||||
# 0 means no timeout, keep searching
|
||||
# for a primary node forever.
|
||||
|
||||
#------------------------------------------------------------------------------
|
||||
# ONLINE RECOVERY
|
||||
#------------------------------------------------------------------------------
|
||||
|
||||
recovery_user = '{{ pgpool_recovery_user }}'
|
||||
# Online recovery user
|
||||
{% if pgpool_recovery_user_pwd is defined %}
|
||||
recovery_password = '{{ pgpool_recovery_user_pwd | default() }}'
|
||||
# Online recovery password
|
||||
{% else %}
|
||||
recovery_password = ''
|
||||
{% endif %}
|
||||
recovery_1st_stage_command = '{{ pgpool_recovery_stage1_script }}'
|
||||
# Executes a command in first stage
|
||||
recovery_2nd_stage_command = '{{ pgpool_recovery_stage2_script }}'
|
||||
# Executes a command in second stage
|
||||
recovery_timeout = {{ pgpool_recovery_timeout }}
|
||||
# Timeout in seconds to wait for the
|
||||
# recovering node's postmaster to start up
|
||||
# 0 means no wait
|
||||
client_idle_limit_in_recovery = {{ pgpool_client_idle_limit_in_recovery }}
|
||||
# Client is disconnected after being idle
|
||||
# for that many seconds in the second stage
|
||||
# of online recovery
|
||||
# 0 means no disconnection
|
||||
# -1 means immediate disconnection
|
||||
|
||||
|
||||
#------------------------------------------------------------------------------
|
||||
# WATCHDOG
|
||||
#------------------------------------------------------------------------------
|
||||
|
||||
# - Enabling -
|
||||
|
||||
use_watchdog = {{ pgpool_use_watchdog }}
|
||||
# Activates watchdog
|
||||
# (change requires restart)
|
||||
|
||||
# -Connection to up stream servers -
|
||||
|
||||
trusted_servers = '{{ pgpool_wd_trusted_servers }}'
|
||||
# trusted server list which are used
|
||||
# to confirm network connection
|
||||
# (hostA,hostB,hostC,...)
|
||||
# (change requires restart)
|
||||
ping_path = '/bin'
|
||||
# ping command path
|
||||
# (change requires restart)
|
||||
|
||||
# - Watchdog communication Settings -
|
||||
|
||||
wd_hostname = '{{ ansible_default_ipv4.address }}'
|
||||
# Host name or IP address of this watchdog
|
||||
# (change requires restart)
|
||||
wd_port = 9000
|
||||
# port number for watchdog service
|
||||
# (change requires restart)
|
||||
wd_authkey = '{{ pgpool_wd_authkey }}'
|
||||
# Authentication key for watchdog communication
|
||||
# (change requires restart)
|
||||
|
||||
# - Virtual IP control Setting -
|
||||
|
||||
delegate_IP = '{{ pgpool_virtual_ip }}'
|
||||
# delegate IP address
|
||||
# If this is empty, virtual IP never bring up.
|
||||
# (change requires restart)
|
||||
if_cmd_path = '/sbin'
|
||||
# ifconfig command path
|
||||
# (change requires restart)
|
||||
if_up_cmd = 'ip_script addr add {{ pgpool_virtual_ip }}/{{ pgpool_virtual_netmask }} dev {{ ansible_default_ipv4.alias }}'
|
||||
# startup delegate IP command
|
||||
# (change requires restart)
|
||||
if_down_cmd = 'ip_script addr del {{ pgpool_virtual_ip }}/{{ pgpool_virtual_netmask }} dev {{ ansible_default_ipv4.alias }}'
|
||||
# shutdown delegate IP command
|
||||
# (change requires restart)
|
||||
|
||||
arping_path = '/usr/local/bin' # arping command path
|
||||
# (change requires restart)
|
||||
|
||||
arping_cmd = 'arping_script -U $_IP_$ -w 1'
|
||||
# arping command
|
||||
# (change requires restart)
|
||||
|
||||
# - Behaivor on escalation Setting -
|
||||
|
||||
clear_memqcache_on_escalation = on
|
||||
# Clear all the query cache on shared memory
|
||||
# when standby pgpool escalate to active pgpool
|
||||
# (= virtual IP holder).
|
||||
# This should be off if client connects to pgpool
|
||||
# not using virtual IP.
|
||||
# (change requires restart)
|
||||
wd_escalation_command = 'date >> {{ psql_log_dir }}/wd_pgpool_escalation.log'
|
||||
# Executes this command at escalation on new active pgpool.
|
||||
# (change requires restart)
|
||||
wd_de_escalation_command = 'date >> {{ psql_log_dir }}/wd_pgpool_de_escalation.log'
|
||||
|
||||
# - Lifecheck Setting -
|
||||
|
||||
# -- common --
|
||||
wd_monitoring_interfaces_list = 'any'
|
||||
|
||||
wd_lifecheck_method = 'heartbeat'
|
||||
# Method of watchdog lifecheck ('heartbeat' or 'query')
|
||||
# (change requires restart)
|
||||
wd_interval = 10
|
||||
# lifecheck interval (sec) > 0
|
||||
# (change requires restart)
|
||||
|
||||
wd_priority = {{ pgpool_wd_priority }}
|
||||
|
||||
{% if pgpool_wd_heartbeat_mode %}
|
||||
# -- heartbeat mode --
|
||||
|
||||
wd_heartbeat_port = {{ pgpool_wd_heartbeat_port }}
|
||||
# Port number for receiving heartbeat signal
|
||||
# (change requires restart)
|
||||
wd_heartbeat_keepalive = {{ pgpool_wd_heartbeat_keepalive_int }}
|
||||
# Interval time of sending heartbeat signal (sec)
|
||||
# (change requires restart)
|
||||
wd_heartbeat_deadtime = {{ pgpool_wd_heartbeat_deadtime }}
|
||||
# Deadtime interval for heartbeat signal (sec)
|
||||
# (change requires restart)
|
||||
heartbeat_destination0 = '{{ pgpool_wd_heartbeat_dest0 }}'
|
||||
# Host name or IP address of destination 0
|
||||
# for sending heartbeat signal.
|
||||
# (change requires restart)
|
||||
heartbeat_destination_port0 = {{ pgpool_wd_heartbeat_dest0_port }}
|
||||
# Port number of destination 0 for sending
|
||||
# heartbeat signal. Usually this is the
|
||||
# same as wd_heartbeat_port.
|
||||
# (change requires restart)
|
||||
heartbeat_device0 = ''
|
||||
# Name of NIC device (such like 'eth0')
|
||||
# used for sending/receiving heartbeat
|
||||
# signal to/from destination 0.
|
||||
# This works only when this is not empty
|
||||
# and pgpool has root privilege.
|
||||
# (change requires restart)
|
||||
|
||||
{% else %}
|
||||
# -- query mode --
|
||||
|
||||
wd_life_point = 3
|
||||
# lifecheck retry times
|
||||
# (change requires restart)
|
||||
wd_lifecheck_query = 'SELECT 1'
|
||||
# lifecheck query to pgpool from watchdog
|
||||
# (change requires restart)
|
||||
wd_lifecheck_dbname = 'template1'
|
||||
# Database name connected for lifecheck
|
||||
# (change requires restart)
|
||||
wd_lifecheck_user = 'nobody'
|
||||
# watchdog user monitoring pgpools in lifecheck
|
||||
# (change requires restart)
|
||||
wd_lifecheck_password = ''
|
||||
# Password for watchdog user in lifecheck
|
||||
# (change requires restart)
|
||||
|
||||
|
||||
{% endif %}
|
||||
# - Other pgpool Connection Settings -
|
||||
|
||||
other_pgpool_hostname0 = '{{ pgpool_wd_heartbeat_dest0 }}'
|
||||
# Host name or IP address to connect to for other pgpool 0
|
||||
# (change requires restart)
|
||||
other_pgpool_port0 = {{ pgpool_port }}
|
||||
# Port number for othet pgpool 0
|
||||
# (change requires restart)
|
||||
other_wd_port0 = {{ pgpool_wd_port }}
|
||||
# Port number for othet watchdog 0
|
||||
# (change requires restart)
|
||||
|
||||
#------------------------------------------------------------------------------
|
||||
# OTHERS
|
||||
#------------------------------------------------------------------------------
|
||||
relcache_expire = {{ pgpool_relcache_expire }}
|
||||
# Life time of relation cache in seconds.
|
||||
# 0 means no cache expiration(the default).
|
||||
# The relation cache is used for cache the
|
||||
# query result against PostgreSQL system
|
||||
# catalog to obtain various information
|
||||
# including table structures or if it's a
|
||||
# temporary table or not. The cache is
|
||||
# maintained in a pgpool child local memory
|
||||
# and being kept as long as it survives.
|
||||
# If someone modify the table by using
|
||||
# ALTER TABLE or some such, the relcache is
|
||||
# not consistent anymore.
|
||||
# For this purpose, cache_expiration
|
||||
# controls the life time of the cache.
|
||||
relcache_size = 256
|
||||
# Number of relation cache
|
||||
# entry. If you see frequently:
|
||||
# "pool_search_relcache: cache replacement happend"
|
||||
# in the pgpool log, you might want to increate this number.
|
||||
|
||||
check_temp_table = on
|
||||
# If on, enable temporary table check in SELECT statements.
|
||||
# This initiates queries against system catalog of primary/master
|
||||
# thus increases load of master.
|
||||
# If you are absolutely sure that your system never uses temporary tables
|
||||
# and you want to save access to primary/master, you could turn this off.
|
||||
# Default is on.
|
||||
|
||||
check_unlogged_table = on
|
||||
# If on, enable unlogged table check in SELECT statements.
|
||||
# This initiates queries against system catalog of primary/master
|
||||
# thus increases load of master.
|
||||
# If you are absolutely sure that your system never uses unlogged tables
|
||||
# and you want to save access to primary/master, you could turn this off.
|
||||
# Default is on.
|
||||
|
||||
{% if pgpool_memory_cache_enabled %}
|
||||
#------------------------------------------------------------------------------
|
||||
# IN MEMORY QUERY MEMORY CACHE
|
||||
#------------------------------------------------------------------------------
|
||||
memory_cache_enabled = on
|
||||
# If on, use the memory cache functionality, off by default
|
||||
memqcache_method = '{{ pgpool_memqcache_method }}'
|
||||
# Cache storage method. either 'shmem'(shared memory) or
|
||||
# 'memcached'. 'shmem' by default
|
||||
# (change requires restart)
|
||||
memqcache_memcached_host = '{{ pgpool_memqcache_memcached_host }}'
|
||||
# Memcached host name or IP address. Mandatory if
|
||||
# memqcache_method = 'memcached'.
|
||||
# Defaults to localhost.
|
||||
# (change requires restart)
|
||||
memqcache_memcached_port = {{ pgpool_memqcache_memcached_port }}
|
||||
# Memcached port number. Mondatory if memqcache_method = 'memcached'.
|
||||
# Defaults to 11211.
|
||||
# (change requires restart)
|
||||
memqcache_total_size = 67108864
|
||||
# Total memory size in bytes for storing memory cache.
|
||||
# Mandatory if memqcache_method = 'shmem'.
|
||||
# Defaults to 64MB.
|
||||
# (change requires restart)
|
||||
memqcache_max_num_cache = 1000000
|
||||
# Total number of cache entries. Mandatory
|
||||
# if memqcache_method = 'shmem'.
|
||||
# Each cache entry consumes 48 bytes on shared memory.
|
||||
# Defaults to 1,000,000(45.8MB).
|
||||
# (change requires restart)
|
||||
memqcache_expire = {{ pgpool_memqcache_expire }} # Memory cache entry life time specified in seconds.
|
||||
# 0 means infinite life time. 0 by default.
|
||||
# (change requires restart)
|
||||
memqcache_auto_cache_invalidation = {{ pgpool_memqcache_auto_cache_invalidation }}
|
||||
# If on, invalidation of query cache is triggered by corresponding
|
||||
# DDL/DML/DCL(and memqcache_expire). If off, it is only triggered
|
||||
# by memqcache_expire. on by default.
|
||||
# (change requires restart)
|
||||
memqcache_maxcache = 409600
|
||||
# Maximum SELECT result size in bytes.
|
||||
# Must be smaller than memqcache_cache_block_size. Defaults to 400KB.
|
||||
# (change requires restart)
|
||||
memqcache_cache_block_size = 1048576
|
||||
# Cache block size in bytes. Mandatory if memqcache_method = 'shmem'.
|
||||
# Defaults to 1MB.
|
||||
# (change requires restart)
|
||||
memqcache_oiddir = '/var/log/pgpool/oiddir'
|
||||
# Temporary work directory to record table oids
|
||||
# (change requires restart)
|
||||
white_memqcache_table_list = ''
|
||||
# Comma separated list of table names to memcache
|
||||
# that don't write to database
|
||||
# Regexp are accepted
|
||||
black_memqcache_table_list = ''
|
||||
# Comma separated list of table names not to memcache
|
||||
# that don't write to database
|
||||
# Regexp are accepted
|
||||
{% else %}
|
||||
#------------------------------------------------------------------------------
|
||||
# IN MEMORY QUERY MEMORY CACHE
|
||||
#------------------------------------------------------------------------------
|
||||
memory_cache_enabled = off
|
||||
# If on, use the memory cache functionality, off by default
|
||||
memqcache_method = 'shmem'
|
||||
# Cache storage method. either 'shmem'(shared memory) or
|
||||
# 'memcached'. 'shmem' by default
|
||||
# (change requires restart)
|
||||
{% endif %}
|
||||
|
|
@ -1,40 +0,0 @@
|
|||
#!/bin/bash
|
||||
# PGpool stage 1 recovery script
|
||||
# Reference: http://michael.stapelberg.de/Artikel/replicated_postgresql_with_pgpool
|
||||
#
|
||||
TS=$(date +%Y-%m-%d_%H-%M-%S)
|
||||
MASTER_HOST=$(hostname -f)
|
||||
# $1 is {{ psql_data_dir }} while $3 is {{ psql_data_dir }}
|
||||
#MASTER_DATA="{{ psql_data_dir }}"
|
||||
MASTER_DATA="${1}"
|
||||
RECOVERY_TARGET=${2}
|
||||
#RECOVERY_DATA="{{ psql_data_dir }}"
|
||||
RECOVERY_DATA="${3}"
|
||||
|
||||
logger "pgpool_recovery_1: MASTER_DATA=$MASTER_DATA"
|
||||
logger "pgpool_recovery_1: RECOVERY_DATA=$RECOVERY_DATA"
|
||||
|
||||
# Ensure that postgres is shut down on the target node
|
||||
ssh -T $RECOVERY_TARGET sudo /etc/init.d/postgresql stop
|
||||
|
||||
# Move the PostgreSQL data directory out of our way.
|
||||
ssh -T $RECOVERY_TARGET \
|
||||
"[ -d $RECOVERY_DATA ] && mv $RECOVERY_DATA $RECOVERY_DATA.$TS"
|
||||
|
||||
# We only use archived WAL logs during recoveries, so delete all
|
||||
# logs from the last recovery to limit the growth.
|
||||
rm $MASTER_DATA/archive_log/*
|
||||
|
||||
# With this file present, our archive_command will actually
|
||||
# archive WAL files.
|
||||
touch $MASTER_DATA/archive_log/backup_in_progress
|
||||
|
||||
# Perform a backup of the database.
|
||||
ssh -T $RECOVERY_TARGET \
|
||||
"pg_basebackup -h $MASTER_HOST -D $RECOVERY_DATA --xlog"
|
||||
|
||||
# Configure the restore_command to use the archive_log WALs we’ll copy
|
||||
# over in 2nd_stage.sh.
|
||||
echo "restore_command = 'cp $RECOVERY_DATA/archive_log/%f %p'" | \
|
||||
ssh -T $RECOVERY_TARGET "cat > $RECOVERY_DATA/recovery.conf"
|
||||
|
||||
|
|
@ -1,37 +0,0 @@
|
|||
#!/bin/bash
|
||||
# Online recovery 2nd stage script
|
||||
#
|
||||
#MASTER_DATA="{{ psql_data_dir }}"
|
||||
MASTER_DATA="${1}"
|
||||
RECOVERY_TARGET=${2}
|
||||
#RECOVERY_DATA="{{ psql_data_dir }}"
|
||||
RECOVERY_DATA="${3}"
|
||||
|
||||
port="{{ psql_db_port }}" # PostgreSQL port number
|
||||
|
||||
archive_dir="{{ psql_wal_archiving_log_dir }}"
|
||||
|
||||
logger "pgpool_recovery_2: MASTER_DATA=$MASTER_DATA"
|
||||
logger "pgpool_recovery_2: RECOVERY_DATA=$RECOVERY_DATA"
|
||||
logger "pgpool_recovery_2: archive_dir=$archive_dir"
|
||||
|
||||
# Force to flush current value of sequences to xlog
|
||||
psql -p $port -t -c 'SELECT datname FROM pg_database WHERE NOT datistemplate AND datallowconn' template1|
|
||||
while read i
|
||||
do
|
||||
if [ "$i" != "" ];then
|
||||
psql -p $port -c "SELECT setval(oid, nextval(oid)) FROM pg_class WHERE relkind = 'S'" $i
|
||||
fi
|
||||
done
|
||||
|
||||
# Flush all transactions to disk. Since pgpool stopped all connections,
|
||||
# there cannot be any data that does not reside on disk until the
|
||||
# to-be-recovered host is back on line.
|
||||
psql -p $port -c "SELECT pgpool_switch_xlog('$MASTER_DATA/archive_log')" template1
|
||||
|
||||
# Copy over all archive logs at once.
|
||||
rsync -avx --delete $MASTER_DATA/archive_log/ \
|
||||
$RECOVERY_TARGET:$RECOVERY_DATA/archive_log/
|
||||
|
||||
# Delete the flag file to disable WAL archiving again.
|
||||
rm $MASTER_DATA/archive_log/backup_in_progress
|
||||
|
|
@ -1,8 +0,0 @@
|
|||
#!/bin/bash
|
||||
DEST=$1
|
||||
DESTDIR=$2
|
||||
|
||||
# Deploy a base backup
|
||||
ssh -T $DEST 'cd {{ psql_data_root_dir }}; tar zxf pgsql.tar.gz' 2>/dev/null 1>/dev/null < /dev/null
|
||||
# Startup PostgreSQL server
|
||||
ssh -T $DEST sudo /etc/init.d/postgresql start 2>/dev/null 1>/dev/null < /dev/null
|
||||
Loading…
Reference in New Issue