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<div>Hi all,</div>
<div><br>
</div>
<div>I’ve got a setup where I have a PostgreSQL 9.2.9 master on the US East Coast and a streaming replication slave on the US West Coast. I’m trying out a setup where we run pgPool in the same data center as the slave, directing all reads to the slave and
all writes to the master. </div>
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<div>I have pgPool set up for Master/Slave mode, with configuration as below. Everything seems to work except I’m not seeing any SELECT queries sent to the slave. I don’t see any messages about replication being behind (and load is pretty low at the moment).
I’ve also pasted the debug output from when I execute the query. </div>
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<div>Any suggestions would be appreciated! </div>
<div><br>
</div>
<div>Config Snippet:</div>
<div><br>
</div>
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<div># - Backend Connection Settings -</div>
<div>backend_hostname0 = ‘xxx.xxx.xxx.xxx'</div>
<div> # Host name or IP address to connect to for backend 0</div>
<div>backend_port0 = 5432</div>
<div> # Port number for backend 0</div>
<div>backend_weight0 = 1</div>
<div> # Weight for backend 0 (only in load balancing mode)</div>
<div>backend_data_directory0 = '/data'</div>
<div> # Data directory for backend 0</div>
<div>backend_flag0 = 'DISALLOW_TO_FAILOVER'</div>
<div> # Controls various backend behavior</div>
<div> # ALLOW_TO_FAILOVER or DISALLOW_TO_FAILOVER</div>
<div><br>
</div>
<div>backend_hostname1 = ‘xxx.xxx.xx.xxx'</div>
<div> # Host name or IP address to connect to for backend 0</div>
<div>backend_port1 = 5432</div>
<div> # Port number for backend 0</div>
<div>backend_weight0 = 0</div>
<div> # Weight for backend 0 (only in load balancing mode)</div>
<div>backend_data_directory1 = '/data'</div>
<div> # Data directory for backend 0</div>
<div>backend_flag1 = 'DISALLOW_TO_FAILOVER'</div>
<div> # Controls various backend behavior</div>
<div> # ALLOW_TO_FAILOVER or DISALLOW_TO_FAILOVER</div>
</div>
<div><br>
</div>
<div>
<div>master_slave_mode = on</div>
<div> # Activate master/slave mode</div>
<div> # (change requires restart)</div>
<div>master_slave_sub_mode = 'stream'</div>
<div> # Master/slave sub mode</div>
</div>
<div><br>
</div>
<div>Log Snippet:</div>
<div><br>
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<div>2015-01-03 23:09:38 DEBUG: pid 177: ProcessFrontendResponse: kind from frontend Q(51)</div>
<div>2015-01-03 23:09:38 DEBUG: pid 177: pool_unset_doing_extended_query_message: done</div>
<div>2015-01-03 23:09:38 DEBUG: pid 177: statement2: select count(*) from users;</div>
<div>2015-01-03 23:09:38 DEBUG: pid 177: pool_set_query_in_progress: done</div>
<div>2015-01-03 23:09:38 DEBUG: pid 177: pool_has_insertinto_or_locking_clause: returns 0</div>
<div>2015-01-03 23:09:38 DEBUG: pid 177: send_to_where: 2 query: select count(*) from users;</div>
<div>2015-01-03 23:09:38 DEBUG: pid 177: function_call_walker: function name: count</div>
<div>2015-01-03 23:09:38 DEBUG: pid 177: pattern_compare: black_function_list (^currval$) not matched: count</div>
<div>2015-01-03 23:09:38 DEBUG: pid 177: pattern_compare: black_function_list (^lastval$) not matched: count</div>
<div>2015-01-03 23:09:38 DEBUG: pid 177: pattern_compare: black_function_list (^nextval$) not matched: count</div>
<div>2015-01-03 23:09:38 DEBUG: pid 177: pattern_compare: black_function_list (^setval$) not matched: count</div>
<div>2015-01-03 23:09:38 DEBUG: pid 177: pattern_compare: black_function_list (^update_miles_log_aml$) not matched: count</div>
<div>2015-01-03 23:09:38 DEBUG: pid 177: pattern_compare: black_function_list (^update_miles_log$) not matched: count</div>
<div>2015-01-03 23:09:38 DEBUG: pid 177: pattern_compare: black_function_list (^update_db_info$) not matched: count</div>
<div>2015-01-03 23:09:38 DEBUG: pid 177: system_catalog_walker: relname: users</div>
<div>2015-01-03 23:09:38 DEBUG: pid 177: temp_table_walker: relname: users</div>
<div>2015-01-03 23:09:38 DEBUG: pid 177: make_table_name_from_rangevar: tablename:users</div>
<div>2015-01-03 23:09:38 DEBUG: pid 177: unlogged_table_walker: relname: users</div>
<div>2015-01-03 23:09:38 DEBUG: pid 177: wait_for_query_response: waiting for backend 1 completing the query</div>
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