[pgpool-general: 6354] Using client_idle_limit

[홍정훈]

Hi
 
I am testing Streaming replication with pgpool but I have problem.
 
I am useing client_idle_limit in pgpool.conf.
 
Suppose I set client_idle_limit to 60.
 
And after sending Query1, if I do not send Query2 for 60 seconds, the connection will be disconnected.
 
Sixty seconds after the connection is disconnected, if I send Query 2, pgpool makes a new connection, and instead of getting a response, it send out an error.
 
Like this.
 
test=> SELECT * FROM pg_stat_activity ORDER BY query_start ASC;
 datid | datname |  pid  | usesysid | usename | application_name |  client_addr  | client_hostname | client_port |
      backend_start         |          xact_start          |         query_start          |         state_change
     | waiting | state  | backend_xid | backend_xmin |                          query
-------+---------+-------+----------+---------+------------------+---------------+-----------------+-------------+---
----------------------------+------------------------------+------------------------------+--------------------------
-----+---------+--------+-------------+--------------+----------------------------------------------------------
 16384 | test  | 55934 |    16385 | test  | psql             | 11.22.412.534 |                 |       55053 | 20
18-12-19 18:27:03.215835+09 | 2018-12-19 18:27:07.53777+09 | 2018-12-19 18:27:07.53777+09 | 2018-12-19 18:27:07.53779
2+09 | f       | active |             |      1473227 | SELECT * FROM pg_stat_activity ORDER BY query_start ASC;
(1 row)
 
test=> SELECT * FROM pg_stat_activity ORDER BY query_start ASC;
ERROR:  unable to read data
DETAIL:  child connection forced to terminate due to client_idle_limit:60 is reached
server closed the connection unexpectedly
        This probably means the server terminated abnormally
        before or while processing the request.
The connection to the server was lost. Attempting reset: Succeeded.
 
Instead of getting an error when the connection is disconnected, I want to get a response by connecting a new connection.
 
I need your help on this part.

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