Provided by: pgpool2_4.1.4-6build1_amd64 
NAME
pgpool_setup - Create a temporary installation of Pgpool-II cluster
SYNOPSIS
pgpool_setup [option...]
DESCRIPTION
pgpool_setup creates a temporary installation of Pgpool-II cluster, which includes a
Pgpool-II installation and specified number of PostgreSQL installations under current
directory. Current directory must be empty before running pgpool_setup.
pgpool_setup is for testing purpose only and should not be used to create production
installations.
pgpool_setup executes ssh against localhost. You need to configure ssh so that it can
login to localhost without password.
Currently pgpool_setup supports streaming replication mode, native replication mode, raw
mode and logical replication mode. To support watchdog, see watchdog_setup(1) for details.
OPTIONS
pgpool_setup accepts the following command-line arguments:
-m mode
Specifies the running mode. mode can be r (native replication mode), s (streaming
replication mode), n (raw mode), l (logical replication mode) or y (slony mode). If
this is omitted, s is assumed.
-n num_clusters
Specifies the number of PostgreSQL installations. If this is omitted, 2 is used.
-p base_port
Specify the base port number used by Pgpool-II and PostgreSQL. Pgpool-II port is
base_port. pcp port is base_port + 1. The first PostgreSQL node's port is base_port +
2, second PostgreSQL node's port is base_port + 3 and so on.
If -pg option is specified, the first PostgreSQL node's port is assigned to
pg_base_port, the second PostgreSQL node's port is pg_base_port + 1 and so on.
If this is omitted, 11000 is used.
-pg pg_base_port
Specify the base port number used by PostgreSQL. The first PostgreSQL node's port is
base_port + 2, second PostgreSQL node's port is base_port + 3 and so on.
If this is omitted, base_port+2 is used.
--no-stop
Do not stop pgpool and PostgreSQL after the work.
-d
Start pgpool with debug mode.
-s
In streaming replication mode, use replication slot instead of archive. Since the
archive directory is shared by all PostgreSQL clusters, if a standby is promoted, the
time line in the archive directory will be changed and other standby servers will be
stopped. Using a replication slot does not have this problem and is always preferable
if you can use PostgreSQL 9.4 or later, which supports replication slot. The
replication slot name used by pgpool_setup is pgpool_setup_slot.
-r
Use pg_rewind command in recovery script (basebackup.sh). If the command fails, switch
to use ordinal rsync command. In certain cases recovery using pg_rewind is much faster
than rsync since it does not copy whole database cluster.
ENVIRONMENT VARIABLES
pgpool_setup recognizes following environment variables:
PGPOOL_INSTALL_DIR
Specifies the Pgpool-II installation directory. Pgpool-II binaries is expected to be
placed under PGPOOL_INSTALL_DIR/bin and pgpool.conf and pool_hba.conf etc. are
expected to be placed under PGPOOL_INSTALL_DIR/etc. The default is /usr/local.
PGPOOLDIR
Specifies the path to Pgpool-II configuration files. The default is
PGPOOL_INSTALL_DIR/etc.
PGBIN
Specifies the path to PostgreSQL commands such as initdb, pg_ctl and psql. The default
is /usr/local/pgsql/bin.
PGLIB
Specifies the path to PostgreSQL shared libraries. The default is
/usr/local/pgsql/lib.
PGSOCKET_DIR
Specifies the path to Unix socket directory. The default is /tmp.
INITDBARG
Specifies the arguments for initdb command. The default is "--no-locale -E UTF_8".
USE_REPLICATION_SLOT
If "true", in streaming replication mode, use replication slot instead of archive.
This brings the same effect as "-s" option is specified.
USE_PG_REWIND
If "true", in streaming replication mode, use pg_rewind in basebackup.sh script. This
brings the same effect as "-r" option is specified.
EXAMPLE
$ pgpool_setup
PostgreSQL major version: 124
Starting set up in streaming replication mode
creating startall and shutdownall
creating failover script
creating database cluster /tmp/test/data0...done.
update postgresql.conf
creating pgpool_remote_start
creating basebackup.sh
creating recovery.conf
creating database cluster /tmp/test/data1...done.
update postgresql.conf
creating pgpool_remote_start
creating basebackup.sh
creating recovery.conf
temporarily start data0 cluster to create extensions
temporarily start pgpool-II to create standby nodes
node_id | hostname | port | status | lb_weight | role | select_cnt | load_balance_node | replication_delay | replication_state | replication_sync_state | last_status_change
---------+----------+-------+--------+-----------+---------+------------+-------------------+-------------------+-------------------+------------------------+---------------------
0 | /tmp | 11002 | up | 0.500000 | primary | 0 | true | 0 | | | 2020-08-18 13:50:19
1 | /tmp | 11003 | down | 0.500000 | standby | 0 | false | 0 | | | 2020-08-18 13:50:18
(2 rows)
recovery node 1...pcp_recovery_node -- Command Successful
done.
creating follow master script
node_id | hostname | port | status | lb_weight | role | select_cnt | load_balance_node | replication_delay | replication_state | replication_sync_state | last_status_change
---------+----------+-------+--------+-----------+---------+------------+-------------------+-------------------+-------------------+------------------------+---------------------
0 | /tmp | 11002 | up | 0.500000 | primary | 0 | true | 0 | | | 2020-08-18 13:50:19
1 | /tmp | 11003 | up | 0.500000 | standby | 0 | false | 0 | | | 2020-08-18 13:50:23
(2 rows)
shutdown all
pgpool-II setting for streaming replication mode is done.
To start the whole system, use /tmp/test/startall.
To shutdown the whole system, use /tmp/test/shutdownall.
pcp command user name is "t-ishii", password is "t-ishii".
Each PostgreSQL, pgpool-II and pcp port is as follows:
#1 port is 11002
#2 port is 11003
pgpool port is 11000
pcp port is 11001
The info above is in README.port.
t-ishii$ ./startall
waiting for server to start....5744 2020-08-18 13:50:27 JST LOG: starting PostgreSQL 12.4 on x86_64-pc-linux-gnu, compiled by gcc (Ubuntu 7.5.0-3ubuntu1~18.04) 7.5.0, 64-bit
5744 2020-08-18 13:50:27 JST LOG: listening on IPv4 address "0.0.0.0", port 11002
5744 2020-08-18 13:50:27 JST LOG: listening on IPv6 address "::", port 11002
5744 2020-08-18 13:50:27 JST LOG: listening on Unix socket "/tmp/.s.PGSQL.11002"
5744 2020-08-18 13:50:27 JST LOG: redirecting log output to logging collector process
5744 2020-08-18 13:50:27 JST HINT: Future log output will appear in directory "log".
done
server started
waiting for server to start....5757 2020-08-18 13:50:27 JST LOG: starting PostgreSQL 12.4 on x86_64-pc-linux-gnu, compiled by gcc (Ubuntu 7.5.0-3ubuntu1~18.04) 7.5.0, 64-bit
5757 2020-08-18 13:50:27 JST LOG: listening on IPv4 address "0.0.0.0", port 11003
5757 2020-08-18 13:50:27 JST LOG: listening on IPv6 address "::", port 11003
5757 2020-08-18 13:50:27 JST LOG: listening on Unix socket "/tmp/.s.PGSQL.11003"
5757 2020-08-18 13:50:27 JST LOG: redirecting log output to logging collector process
5757 2020-08-18 13:50:27 JST HINT: Future log output will appear in directory "log".
done
server started
t-ishii$ psql -p 11000 test
psql (12.4)
Type "help" for help.
test=# show pool_nodes;
node_id | hostname | port | status | lb_weight | role | select_cnt | load_balance_node | replication_delay | replication_state | replication_sync_state | last_status_change
---------+----------+-------+--------+-----------+---------+------------+-------------------+-------------------+-------------------+------------------------+---------------------
0 | /tmp | 11002 | up | 0.500000 | primary | 0 | true | 0 | | | 2020-08-18 13:50:32
1 | /tmp | 11003 | up | 0.500000 | standby | 0 | false | 0 | streaming | async | 2020-08-18 13:50:32
(2 rows)