694 lines
34 KiB
Django/Jinja
694 lines
34 KiB
Django/Jinja
# ----------------------------
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# pgPool-II configuration file
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# ----------------------------
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#
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# This file consists of lines of the form:
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#
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# name = value
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#
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# Whitespace may be used. Comments are introduced with "#" anywhere on a line.
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# The complete list of parameter names and allowed values can be found in the
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# pgPool-II documentation.
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#
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# This file is read on server startup and when the server receives a SIGHUP
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# signal. If you edit the file on a running system, you have to SIGHUP the
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# server for the changes to take effect, or use "pgpool reload". Some
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# parameters, which are marked below, require a server shutdown and restart to
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# take effect.
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#
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#------------------------------------------------------------------------------
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# CONNECTIONS
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#------------------------------------------------------------------------------
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# - pgpool Connection Settings -
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listen_addresses = '{{ pgpool_listen_addresses }}'
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# Host name or IP address to listen on:
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# '*' for all, '' for no TCP/IP connections
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# (change requires restart)
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port = {{ pgpool_port }}
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# Port number
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# (change requires restart)
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socket_dir = '/var/run/postgresql'
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# Unix domain socket path
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# The Debian package defaults to
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# /var/run/postgresql
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# (change requires restart)
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listen_backlog_multiplier = {{ pgpool_listen_backlog_multiplier }}
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# Set the backlog parameter of listen(2) to
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# num_init_children * listen_backlog_multiplier.
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# (change requires restart)
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# - pgpool Communication Manager Connection Settings -
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pcp_listen_addresses = '{{ pgpool_pcp_listen_addresses }}'
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# Host name or IP address for pcp process to listen on:
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# '*' for all, '' for no TCP/IP connections
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# (change requires restart)
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pcp_port = {{ pgpool_pcp_port }}
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# Port number for pcp
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# (change requires restart)
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pcp_socket_dir = '/var/run/postgresql'
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# Unix domain socket path for pcp
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# The Debian package defaults to
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# /var/run/postgresql
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# (change requires restart)
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# - Backend Connection Settings -
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{% for bk in pgpool_backends %}
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backend_hostname{{ bk.id}} = '{{ bk.hostname }}'
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backend_port{{ bk.id }} = {{ bk.backend_port }}
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backend_weight{{ bk.id }} = {{ bk.backend_weight }}
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backend_data_directory{{ bk.id }} = '{{ bk.backend_data_directory }}'
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backend_flag{{ bk.id }} = '{{ bk.backend_flag }}'
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{% endfor %}
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# - Authentication -
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enable_pool_hba = {{ pgpool_enable_pool_hba }}
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# Use pool_hba.conf for client authentication
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pool_passwd = '{{ pgpool_pool_passwd }}'
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# File name of pool_passwd for md5 authentication.
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# "" disables pool_passwd.
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# (change requires restart)
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authentication_timeout = 60
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# Delay in seconds to complete client authentication
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# 0 means no timeout.
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{% if pgpool_enable_ssl %}
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# - SSL Connections -
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ssl = on
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ssl_key = '{{ pgpool_ssl_key }}'
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ssl_cert = '{{ pgpool_ssl_cert }}'
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ssl_ca_cert = '{{ pgpool_ssl_ca }}'
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ssl_ca_cert_dir = '{{ pgpool_ssl_ca_dir }}'
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{% endif %}
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#------------------------------------------------------------------------------
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# POOLS
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#------------------------------------------------------------------------------
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# - Pool size -
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num_init_children = {{ pgpool_num_init_children }}
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# Number of pools
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# (change requires restart)
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max_pool = {{ pgpool_max_pool }}
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# Number of connections per pool
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# (change requires restart)
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# - Life time -
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child_life_time = {{ pgpool_child_life_time }}
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# Pool exits after being idle for this many seconds
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child_max_connections = {{ pgpool_child_max_connections }}
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# Pool exits after receiving that many connections
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# 0 means no exit
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connection_life_time = {{ pgpool_connection_life_time }}
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# Connection to backend closes after being idle for this many seconds
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# 0 means no close
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client_idle_limit = {{ pgpool_client_idle_limit }}
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# Client is disconnected after being idle for that many seconds
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# (even inside an explicit transactions!)
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# 0 means no disconnection
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#------------------------------------------------------------------------------
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# LOGS
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#------------------------------------------------------------------------------
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# - Where to log -
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log_destination = '{{ pgpool_log_destination }}'
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# Where to log
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# Valid values are combinations of stderr,
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# and syslog. Default to stderr.
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# - What to log -
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log_line_prefix = '%t: pid %p: ' # printf-style string to output at beginning of each log line.
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log_connections = {{ pgpool_log_connections }}
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# Log connections
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log_hostname = {{ pgpool_log_hostname }}
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# Hostname will be shown in ps status
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# and in logs if connections are logged
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log_statement = {{ pgpool_log_statement }}
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# Log all statements
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log_per_node_statement = {{ pgpool_log_per_node_statement }}
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# Log all statements
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# with node and backend informations
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log_standby_delay = 'none'
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# Log standby delay
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# Valid values are combinations of always,
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# if_over_threshold, none
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# - Syslog specific -
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syslog_facility = 'LOCAL0'
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# Syslog local facility. Default to LOCAL0
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syslog_ident = 'pgpool'
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# Syslog program identification string
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# Default to 'pgpool'
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# - Debug -
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debug_level = {{ pgpool_debug_level }}
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# Debug message verbosity level
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# 0 means no message, 1 or more mean verbose
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#log_error_verbosity = default # terse, default, or verbose messages
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#client_min_messages = notice # values in order of decreasing detail:
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# debug5
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# debug4
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# debug3
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# debug2
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# debug1
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# log
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# notice
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# warning
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# error
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#log_min_messages = warning # values in order of decreasing detail:
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# debug5
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# debug4
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# debug3
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# debug2
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# debug1
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# info
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# notice
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# warning
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# error
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# log
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# fatal
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# panic
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#------------------------------------------------------------------------------
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# FILE LOCATIONS
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#------------------------------------------------------------------------------
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pid_file_name = '/var/run/postgresql/pgpool.pid'
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# PID file name
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# (change requires restart)
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logdir = '/var/log/postgresql'
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# Directory of pgPool status file
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# (change requires restart)
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#------------------------------------------------------------------------------
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# CONNECTION POOLING
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#------------------------------------------------------------------------------
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connection_cache = on
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# Activate connection pools
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# (change requires restart)
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# Semicolon separated list of queries
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# to be issued at the end of a session
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# The default is for 8.3 and later
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reset_query_list = 'ABORT; DISCARD ALL'
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# The following one is for 8.2 and before
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#reset_query_list = 'ABORT; RESET ALL; SET SESSION AUTHORIZATION DEFAULT'
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serialize_accept = {{ pgpool_serialize_accept }}
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#------------------------------------------------------------------------------
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# REPLICATION MODE
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#------------------------------------------------------------------------------
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replication_mode = {{ pgpool_replication_mode }}
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# Activate replication mode
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# (change requires restart)
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replicate_select = {{ pgpool_replicate_select }}
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# Replicate SELECT statements
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# when in replication mode
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# replicate_select is higher priority than
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# load_balance_mode.
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insert_lock = {{ pgpool_insert_lock }}
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# Automatically locks a dummy row or a table
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# with INSERT statements to keep SERIAL data
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# consistency
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# Without SERIAL, no lock will be issued
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lobj_lock_table = '{{ pgpool_lobj_lock_table }}'
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# When rewriting lo_creat command in
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# replication mode, specify table name to
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# lock
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# - Degenerate handling -
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replication_stop_on_mismatch = {{ pgpool_replication_stop_on_mismatch }}
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# On disagreement with the packet kind
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# sent from backend, degenerate the node
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# which is most likely "minority"
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# If off, just force to exit this session
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failover_if_affected_tuples_mismatch = {{ pgpool_failover_if_affected_tuples_mismatch }}
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# On disagreement with the number of affected
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# tuples in UPDATE/DELETE queries, then
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# degenerate the node which is most likely
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# "minority".
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# If off, just abort the transaction to
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# keep the consistency
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#------------------------------------------------------------------------------
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# LOAD BALANCING MODE
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#------------------------------------------------------------------------------
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load_balance_mode = {{ pgpool_load_balance_mode }}
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# Activate load balancing mode
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# (change requires restart)
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ignore_leading_white_space = {{ pgpool_ignore_leading_white_space }}
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# Ignore leading white spaces of each query
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white_function_list = '{{ pgpool_white_function_list }}'
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# Comma separated list of function names
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# that don't write to database
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# Regexp are accepted
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black_function_list = '{{ pgpool_black_function_list }}'
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# Comma separated list of function names
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# that write to database
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# Regexp are accepted
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database_redirect_preference_list = ''
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# comma separated list of pairs of database and node id.
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# example: postgres:primary,mydb[0-4]:1,mydb[5-9]:2'
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# valid for streaming replicaton mode only.
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app_name_redirect_preference_list = ''
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# comma separated list of pairs of app name and node id.
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# example: 'psql:primary,myapp[0-4]:1,myapp[5-9]:standby'
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# valid for streaming replicaton mode only.
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allow_sql_comments = {{ pgpool_allow_sql_comments }}
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# if on, ignore SQL comments when judging if load balance or
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# query cache is possible.
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# If off, SQL comments effectively prevent the judgment
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# (pre 3.4 behavior).
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#------------------------------------------------------------------------------
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# MASTER/SLAVE MODE
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#------------------------------------------------------------------------------
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master_slave_mode = off
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# Activate master/slave mode
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# (change requires restart)
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master_slave_sub_mode = 'slony'
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# Master/slave sub mode
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# Valid values are combinations slony or
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# stream. Default is slony.
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# (change requires restart)
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# - Streaming -
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sr_check_period = 0
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# Streaming replication check period
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# Disabled (0) by default
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sr_check_user = 'nobody'
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# Streaming replication check user
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# This is neccessary even if you disable streaming
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# replication delay check by sr_check_period = 0
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sr_check_password = ''
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# Password for streaming replication check user
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delay_threshold = 0
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# Threshold before not dispatching query to standby node
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# Unit is in bytes
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# Disabled (0) by default
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# - Special commands -
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follow_master_command = ''
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# Executes this command after master failover
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# Special values:
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# %d = node id
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# %h = host name
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# %p = port number
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# %D = database cluster path
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# %m = new master node id
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# %H = hostname of the new master node
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# %M = old master node id
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# %P = old primary node id
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# %r = new master port number
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# %R = new master database cluster path
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# %% = '%' character
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#------------------------------------------------------------------------------
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# HEALTH CHECK
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#------------------------------------------------------------------------------
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health_check_period = 0
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# Health check period
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# Disabled (0) by default
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health_check_timeout = 20
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# Health check timeout
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# 0 means no timeout
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health_check_user = 'nobody'
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# Health check user
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health_check_password = ''
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# Password for health check user
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health_check_max_retries = 0
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# Maximum number of times to retry a failed health check before giving up.
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health_check_retry_delay = 1
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# Amount of time to wait (in seconds) between retries.
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connect_timeout = 10000
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# Timeout value in milliseconds before giving up to connect to backend.
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# Default is 10000 ms (10 second). Flaky network user may want to increase
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# the value. 0 means no timeout.
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# Note that this value is not only used for health check,
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# but also for ordinary conection to backend.
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#------------------------------------------------------------------------------
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# FAILOVER AND FAILBACK
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#------------------------------------------------------------------------------
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failover_command = ''
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# Executes this command at failover
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# Special values:
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# %d = node id
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# %h = host name
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# %p = port number
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# %D = database cluster path
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# %m = new master node id
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# %H = hostname of the new master node
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# %M = old master node id
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# %P = old primary node id
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# %r = new master port number
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# %R = new master database cluster path
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# %% = '%' character
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failback_command = ''
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# Executes this command at failback.
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# Special values:
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# %d = node id
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# %h = host name
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# %p = port number
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# %D = database cluster path
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# %m = new master node id
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# %H = hostname of the new master node
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# %M = old master node id
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# %P = old primary node id
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# %r = new master port number
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# %R = new master database cluster path
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# %% = '%' character
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{% if pgpool_version is version_compare('4.1.4', '>=') %}
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failover_on_backend_error = {{ pgpool_fail_over_on_backend_error }}
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{% else %}
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fail_over_on_backend_error = {{ pgpool_fail_over_on_backend_error }}
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{% endif %}
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# Initiates failover when reading/writing to the
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# backend communication socket fails
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# If set to off, pgpool will report an
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# error and disconnect the session.
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search_primary_node_timeout = 10
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# Timeout in seconds to search for the
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# primary node when a failover occurs.
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# 0 means no timeout, keep searching
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# for a primary node forever.
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#------------------------------------------------------------------------------
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# ONLINE RECOVERY
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#------------------------------------------------------------------------------
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recovery_user = '{{ pgpool_recovery_user }}'
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# Online recovery user
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{% if pgpool_recovery_user_pwd is defined %}
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recovery_password = '{{ pgpool_recovery_user_pwd | default() }}'
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# Online recovery password
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{% else %}
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recovery_password = ''
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{% endif %}
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recovery_1st_stage_command = '{{ pgpool_recovery_stage1_script }}'
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# Executes a command in first stage
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recovery_2nd_stage_command = '{{ pgpool_recovery_stage2_script }}'
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# Executes a command in second stage
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recovery_timeout = {{ pgpool_recovery_timeout }}
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# Timeout in seconds to wait for the
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# recovering node's postmaster to start up
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# 0 means no wait
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client_idle_limit_in_recovery = {{ pgpool_client_idle_limit_in_recovery }}
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# Client is disconnected after being idle
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# for that many seconds in the second stage
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# of online recovery
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# 0 means no disconnection
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# -1 means immediate disconnection
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#------------------------------------------------------------------------------
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# WATCHDOG
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#------------------------------------------------------------------------------
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# - Enabling -
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use_watchdog = {{ pgpool_use_watchdog }}
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# Activates watchdog
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# (change requires restart)
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# -Connection to up stream servers -
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trusted_servers = '{{ pgpool_wd_trusted_servers }}'
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# trusted server list which are used
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# to confirm network connection
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# (hostA,hostB,hostC,...)
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# (change requires restart)
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ping_path = '/bin'
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# ping command path
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# (change requires restart)
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# - Watchdog communication Settings -
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wd_hostname = '{{ ansible_default_ipv4.address }}'
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# Host name or IP address of this watchdog
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# (change requires restart)
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wd_port = 9000
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# port number for watchdog service
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# (change requires restart)
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wd_authkey = '{{ pgpool_wd_authkey }}'
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# Authentication key for watchdog communication
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# (change requires restart)
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# - Virtual IP control Setting -
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delegate_IP = '{{ pgpool_virtual_ip }}'
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# delegate IP address
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# If this is empty, virtual IP never bring up.
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# (change requires restart)
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if_cmd_path = '/sbin'
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# ifconfig command path
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# (change requires restart)
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if_up_cmd = 'ip_script addr add {{ pgpool_virtual_ip }}/{{ pgpool_virtual_netmask }} dev {{ ansible_default_ipv4.alias }}'
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# startup delegate IP command
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# (change requires restart)
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if_down_cmd = 'ip_script addr del {{ pgpool_virtual_ip }}/{{ pgpool_virtual_netmask }} dev {{ ansible_default_ipv4.alias }}'
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# shutdown delegate IP command
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# (change requires restart)
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arping_path = '/usr/local/bin' # arping command path
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# (change requires restart)
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arping_cmd = 'arping_script -U $_IP_$ -w 1'
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# arping command
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# (change requires restart)
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# - Behaivor on escalation Setting -
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clear_memqcache_on_escalation = on
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# Clear all the query cache on shared memory
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# when standby pgpool escalate to active pgpool
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# (= virtual IP holder).
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# This should be off if client connects to pgpool
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# not using virtual IP.
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# (change requires restart)
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wd_escalation_command = 'date >> {{ psql_log_dir }}/wd_pgpool_escalation.log'
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# Executes this command at escalation on new active pgpool.
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# (change requires restart)
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wd_de_escalation_command = 'date >> {{ psql_log_dir }}/wd_pgpool_de_escalation.log'
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# - Lifecheck Setting -
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# -- common --
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wd_monitoring_interfaces_list = 'any'
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wd_lifecheck_method = 'heartbeat'
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# Method of watchdog lifecheck ('heartbeat' or 'query')
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# (change requires restart)
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wd_interval = 10
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# lifecheck interval (sec) > 0
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# (change requires restart)
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wd_priority = {{ pgpool_wd_priority }}
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{% if pgpool_wd_heartbeat_mode %}
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# -- heartbeat mode --
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wd_heartbeat_port = {{ pgpool_wd_heartbeat_port }}
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# Port number for receiving heartbeat signal
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# (change requires restart)
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wd_heartbeat_keepalive = {{ pgpool_wd_heartbeat_keepalive_int }}
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# Interval time of sending heartbeat signal (sec)
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# (change requires restart)
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wd_heartbeat_deadtime = {{ pgpool_wd_heartbeat_deadtime }}
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# Deadtime interval for heartbeat signal (sec)
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# (change requires restart)
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|
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)
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|
|
|
{% else %}
|
|
# -- query mode --
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|
|
|
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 %}
|