I was also trying to setup parallel queries and got some information about the setup from pgpool doc. But I have some queries like:
Do I need to create table like "accounts, branches, history" ? and What are "aid, tid" in the function definition? Thanks. ________________________________ From: Alessandro Candini <[email protected]> To: [email protected] Sent: Mon, January 31, 2011 5:04:28 PM Subject: [Pgpool-general] Parallel SELECT retrieve only half of the results Hi, I have configured pgpool-II-3.0.1 with postgresql-9.0.2 for parallel queries: listen_addresses = '*' port = 9999 pcp_port = 9898 socket_dir = '/tmp' pcp_socket_dir = '/tmp' backend_socket_dir = '/tmp' pcp_timeout = 10 num_init_children = 32 max_pool = 4 child_life_time = 0 connection_life_time = 0 child_max_connections = 0 client_idle_limit = 0 authentication_timeout = 60 logdir = '/var/log/pgpool' pid_file_name = '/var/log/pgpool/pgpool.pid' replication_mode = true load_balance_mode = false replication_stop_on_mismatch = false failover_if_affected_tuples_mismatch = false replicate_select = true reset_query_list = 'ABORT; DISCARD ALL' white_function_list = '' black_function_list = 'nextval,setval' print_timestamp = true master_slave_mode = false master_slave_sub_mode = 'stream' delay_threshold = 100 log_standby_delay = 'if_over_threshold' connection_cache = true health_check_timeout = 10 health_check_period = 10 health_check_user = 'postgis' failover_command = '/usr/lib/pgpool-II/3.0.1/bin/failover.sh %h %H /tmp/trigger_file0' failback_command = '/usr/lib/pgpool-II/3.0.1/bin/failback.sh %h %M /tmp/trigger_file0 %m' fail_over_on_backend_error = false insert_lock = true ignore_leading_white_space = false log_statement = false log_per_node_statement = false log_connections = false log_hostname = false parallel_mode = true enable_query_cache = false pgpool2_hostname = '' system_db_hostname = '192.168.0.128' system_db_port = 5433 system_db_dbname = 'pgpool' system_db_schema = 'pgpool_catalog' system_db_user = 'pgpool' system_db_password = '' backend_hostname0 = '192.168.0.128' backend_port0 = 5433 backend_weight0 = 1 backend_data_directory0 = '/home/database/9.0.2/data' backend_hostname1 = '192.168.0.125' backend_port1 = 5433 backend_weight1 = 1 backend_data_directory1 = '/home/database/9.0.2/data' enable_pool_hba = false recovery_user = 'postgis' recovery_password = 'gispost' recovery_1st_stage_command = 'basebackup.sh' recovery_2nd_stage_command = '' recovery_timeout = 60 client_idle_limit_in_recovery = 0 lobj_lock_table = 'pgpool_lobj_lock' ssl = false debug_level = 0 I have splitted the same db on the two machines 192.168.0.128 (the System DB) and 192.168.0.125, but when I perform something like "SELECT COUNT(*) FROM mytable" it retrieves only the data on the system DB... I expected to obtain the sum of data on the two nodes. Where am I wrong? _______________________________________________ Pgpool-general mailing list [email protected] http://pgfoundry.org/mailman/listinfo/pgpool-general
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