2021-04-02 16:58:24 +02:00
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Role Name
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=========
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2021-04-02 18:10:49 +02:00
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A role that installs pgPoolII
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2021-04-02 16:58:24 +02:00
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Role Variables
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--------------
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2021-04-02 18:10:49 +02:00
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The most important variables are listed below:
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2021-04-02 16:58:24 +02:00
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2021-04-02 18:10:49 +02:00
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``` yaml
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psql_pgpool_install: True
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psql_pgpool_service_install: True
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psql_pgpool_pkg_state: present
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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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2021-04-02 18:10:49 +02:00
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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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```
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Dependencies
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------------
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2021-04-02 16:58:24 +02:00
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2021-04-02 18:10:49 +02:00
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None
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2021-04-02 16:58:24 +02:00
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License
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-------
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EUPL-1.2
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Author Information
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------------------
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2021-04-02 18:10:49 +02:00
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Andrea Dell'Amico, <andrea.dellamico@isti.cnr.it>
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