[pgpool-general: 6303] PGPool does not balance between slaves
Franklin Anderson de Oliveira Souza
franklinbr at gmail.com
Thu Nov 22 05:26:14 JST 2018
Hello Guys.
I have a pgpool with five postgresql servers, one master and three slaves
in mode sync.
I chose streaming replication mode of pgpool based on file
$prefix/etc/pgpool.conf.sample-stream.
But when i execute on psql show pool_nodes i have this result
postgres=# show pool_nodes;
node_id | hostname | port | status | lb_weight | role | select_cnt |
load_balance_node | replication_delay
---------+-------------+------+--------+-----------+---------+------------+-------------------+-------------------
0 | 10.0.58.124 | 5432 | up | 0.250000 | primary | 0 |
true | 0
1 | 10.0.58.123 | 5433 | down | 0.250000 | standby | 0 |
false | 0
2 | 10.0.58.130 | 5433 | unused | 0.250000 | standby | 0 |
false | 0
3 | 10.0.58.132 | 5433 | unused | 0.250000 | standby | 0 |
false | 0
(4 registros)
Then i maked a shell script for for mass execution of querys, but executed
on the master only (node_id 0).
relevant parts of the configuration
----------------------------------------------------------------
backend_hostname0 = '10.0.58.124'
backend_port0 = 5432
backend_weight0 = 1
backend_data_directory0 = '/storage1/data'
backend_flag0 = 'ALWAYS_MASTER'
backend_hostname1 = '10.0.58.123'
backend_port1 = 5433
backend_weight1 = 1
backend_data_directory1 = '/storage1/data'
backend_flag1 = 'ALLOW_TO_FAILOVER'
backend_hostname2 = '10.0.58.130'
backend_port2 = 5433
backend_weight2 = 1
backend_data_directory2 = '/storage1/data'
backend_flag2 = 'ALLOW_TO_FAILOVER'
backend_hostname3 = '10.0.58.132'
backend_port3 = 5433
backend_weight3 = 1
backend_data_directory3 = '/storage1/data'
backend_flag3 = 'ALLOW_TO_FAILOVER'
load_balance_mode = on
master_slave_mode = on
master_slave_sub_mode = 'stream'
----------------------------------------------------------------
Any Tips ?
--
foobar
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