watchdog_setup

pgpool-II 4.0.0 Documentation
Prev	Up		Next

Name

watchdog_setup -- Create a temporary installation of Pgpool-II clusters with watchdog

Synopsis

watchdog_setup [ option ...]

Description

watchdog_setup creates a temporary installation of Pgpool-II clusters with watchdog enabled, which includes a Pgpool-II installation and specified number of PostgreSQL installations under current directory. Current directory must be empty before running watchdog_setup .

watchdog_setup is for testing purpose only and should not be used to create production installations. Also please note that heartbeat is not used.

watchdog_setup uses pgpool_setup as a workhorse.

Currently watchdog_setup supports streaming replication mode, native replication mode, logical replication mode and raw mode.

Options

watchdog_setup accepts the following command-line arguments:

-wn num_pgpool

Specifies the number of Pgpool-II installations. If this is omitted, 3 is used.

-wp watchdog_base_port

Specify the starting base port number used by Pgpool-II and PostgreSQL. For the first Pgpool-II, Pgpool-II port is watchdog_base_port. pcp port is watchdog_base_port + 1, watchdog port is watchdog_base_port + 2. wd_heartbeat_port is watchdog_base_port + 3 (though heartbeat is not used). The first PostgreSQL node's port is watchdog_base_port + 4, second PostgreSQL node's port is watchdog_base_port + 5 and so on.

If this is omitted, 50000 is used.

-m mode

Specifies the running mode. mode can be r (native replication mode), s (streaming replication mode), or n (raw mode). If this is omitted, s is used.

-n num_clusters

Specifies the number of PostgreSQL installations. If this is omitted, 2 is used.

--no-stop

Do not stop pgpool and PostgreSQL after the work.

-d

Start pgpool with debug mode.

Environment variables

watchdog_setup recognizes following environment variables:

PGPOOL_SETUP: Specifies the path to pgpool_setup command. The default is "pgpool_setup", thus it is assumed that pgpool_setup is in the command search path.
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".

Example

$ watchdog_setup
Starting set up
============= setting up pgpool 0 =============
Starting set up in streaming replication mode
creating startall and shutdownall
creating failover script
creating database cluster /home/t-ishii/work/pgpool-II/current/pgpool2/src/test/a/pgpool0/data0...done.
update postgresql.conf
creating pgpool_remote_start
creating basebackup.sh
creating recovery.conf
creating database cluster /home/t-ishii/work/pgpool-II/current/pgpool2/src/test/a/pgpool0/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
INFO:  unrecognized configuration parameter "debug_level"
 node_id | hostname | port  | status | lb_weight |  role   | select_cnt | load_balance_node | replication_delay
---------+----------+-------+--------+-----------+---------+------------+-------------------+-------------------
 0       | /tmp     | 51000 | up     | 0.500000  | primary | 0          | true              | 0
 1       | /tmp     | 51001 | down   | 0.500000  | standby | 0          | false             | 0
(2 rows)

recovery node 1...pcp_recovery_node -- Command Successful
done.
creating follow master script
Pager usage is off.
 node_id | hostname | port  | status | lb_weight |  role   | select_cnt | load_balance_node | replication_delay
---------+----------+-------+--------+-----------+---------+------------+-------------------+-------------------
 0       | /tmp     | 51000 | up     | 0.500000  | primary | 0          | false             | 0
 1       | /tmp     | 51001 | up     | 0.500000  | standby | 0          | true              | 0
(2 rows)

shutdown all

pgpool-II setting for streaming replication mode is done.
To start the whole system, use /home/t-ishii/work/pgpool-II/current/pgpool2/src/test/a/pgpool0/startall.
To shutdown the whole system, use /home/t-ishii/work/pgpool-II/current/pgpool2/src/test/a/pgpool0/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 51000
#2 port is 51001
pgpool port is 50000
pcp port is 50001
The info above is in README.port.
============= setting up pgpool 1 =============
Starting set up in streaming replication mode
creating startall and shutdownall
creating failover script
creating database cluster /home/t-ishii/work/pgpool-II/current/pgpool2/src/test/a/pgpool1/data0...done.
update postgresql.conf
creating pgpool_remote_start
creating basebackup.sh
creating recovery.conf
creating database cluster /home/t-ishii/work/pgpool-II/current/pgpool2/src/test/a/pgpool1/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
INFO:  unrecognized configuration parameter "debug_level"
 node_id | hostname | port  | status | lb_weight |  role   | select_cnt | load_balance_node | replication_delay
---------+----------+-------+--------+-----------+---------+------------+-------------------+-------------------
 0       | /tmp     | 51000 | up     | 0.500000  | primary | 0          | true              | 0
 1       | /tmp     | 51001 | down   | 0.500000  | standby | 0          | false             | 0
(2 rows)

recovery node 1...pcp_recovery_node -- Command Successful
done.
creating follow master script
Pager usage is off.
 node_id | hostname | port  | status | lb_weight |  role   | select_cnt | load_balance_node | replication_delay
---------+----------+-------+--------+-----------+---------+------------+-------------------+-------------------
 0       | /tmp     | 51000 | up     | 0.500000  | primary | 0          | true              | 0
 1       | /tmp     | 51001 | up     | 0.500000  | standby | 0          | false             | 0
(2 rows)

shutdown all

pgpool-II setting for streaming replication mode is done.
To start the whole system, use /home/t-ishii/work/pgpool-II/current/pgpool2/src/test/a/pgpool1/startall.
To shutdown the whole system, use /home/t-ishii/work/pgpool-II/current/pgpool2/src/test/a/pgpool1/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 51000
#2 port is 51001
pgpool port is 50004
pcp port is 50005
The info above is in README.port.
============= setting up pgpool 2 =============
Starting set up in streaming replication mode
creating startall and shutdownall
creating failover script
creating database cluster /home/t-ishii/work/pgpool-II/current/pgpool2/src/test/a/pgpool2/data0...done.
update postgresql.conf
creating pgpool_remote_start
creating basebackup.sh
creating recovery.conf
creating database cluster /home/t-ishii/work/pgpool-II/current/pgpool2/src/test/a/pgpool2/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
INFO:  unrecognized configuration parameter "debug_level"
 node_id | hostname | port  | status | lb_weight |  role   | select_cnt | load_balance_node | replication_delay
---------+----------+-------+--------+-----------+---------+------------+-------------------+-------------------
 0       | /tmp     | 51000 | up     | 0.500000  | primary | 0          | true              | 0
 1       | /tmp     | 51001 | down   | 0.500000  | standby | 0          | false             | 0
(2 rows)

recovery node 1...pcp_recovery_node -- Command Successful
done.
creating follow master script
Pager usage is off.
 node_id | hostname | port  | status | lb_weight |  role   | select_cnt | load_balance_node | replication_delay
---------+----------+-------+--------+-----------+---------+------------+-------------------+-------------------
 0       | /tmp     | 51000 | up     | 0.500000  | primary | 0          | true              | 0
 1       | /tmp     | 51001 | up     | 0.500000  | standby | 0          | false             | 0
(2 rows)

shutdown all

pgpool-II setting for streaming replication mode is done.
To start the whole system, use /home/t-ishii/work/pgpool-II/current/pgpool2/src/test/a/pgpool2/startall.
To shutdown the whole system, use /home/t-ishii/work/pgpool-II/current/pgpool2/src/test/a/pgpool2/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 51000
#2 port is 51001
pgpool port is 50008
pcp port is 50009
The info above is in README.port.

$ ls
pgpool0  pgpool1  pgpool2  shutdownall	startall

$ sh startall
waiting for server to start....16123 2016-08-18 16:26:53 JST LOG:  redirecting log output to logging collector process
16123 2016-08-18 16:26:53 JST HINT:  Future log output will appear in directory "pg_log".
 done
server started
waiting for server to start....16136 2016-08-18 16:26:54 JST LOG:  redirecting log output to logging collector process
16136 2016-08-18 16:26:54 JST HINT:  Future log output will appear in directory "pg_log".
 done
server started

t-ishii@localhost: psql -p 50000 test

Pager usage is off.
psql (9.5.4)
Type "help" for help.

test=# \q

$ pcp_watchdog_info -p 50001 -v
Password:
Watchdog Cluster Information
Total Nodes          : 3
Remote Nodes         : 2
Quorum state         : QUORUM EXIST
Alive Remote Nodes   : 2
VIP up on local node : NO
Master Node Name     : Linux_tishii-CF-SX3HE4BP_50004
Master Host Name     : localhost

Watchdog Node Information
Node Name      : Linux_tishii-CF-SX3HE4BP_50000
Host Name      : localhost
Delegate IP    : Not_Set
Pgpool port    : 50000
Watchdog port  : 50002
Node priority  : 1
Status         : 7
Status Name    : STANDBY

Node Name      : Linux_tishii-CF-SX3HE4BP_50004
Host Name      : localhost
Delegate IP    : Not_Set
Pgpool port    : 50004
Watchdog port  : 50006
Node priority  : 1
Status         : 4
Status Name    : MASTER

Node Name      : Linux_tishii-CF-SX3HE4BP_50008
Host Name      : localhost
Delegate IP    : Not_Set
Pgpool port    : 50008
Watchdog port  : 50010
Node priority  : 1
Status         : 7
Status Name    : STANDBY